omniomni/omni-engineering huggingface dataset:
David Cushman Coyle. David Cushman Coyle (1887–1969) was an American structural engineer, economist, and writer. Coyle was the structural engineer of the Washington State Capitol and a prominent economic thinker during the New Deal.

Early life
David Cushman Coyle was born in 1887. His parents were John Patterson Coyle, a Congregational minister, and Mary Cushman Coyle. His sister was Grace Coyle (1892–1962).

Career

Coyle was a structural engineer, economist and writer. He also wrote several books on economic theory and policy, including Brass Tacks (1935) and Uncommon Sense (1945).

He engineered the concrete dome that spans the building's rotunda using a cantilevered truss system. At 287 feet in diameter, it remains the largest free-standing masonry dome in North America.

Personal life and death
Coyle had two sons, and a daughter by his first wife. He was married to Doris Porter Coyle upon his death. He resided in Washington, D.C. and Cliff Island, Portland, Maine, and vacationed in Cape Porpoise, Maine. He was a member of the Cosmos Club in Washington, D.C. He died in 1969 in Washington, D.C.

Selected works
 Uncommon Sense, (1936)
 America, (1941), published by National Home Library Foundation 
 "Tolerance and Treason", The Yale Review, (Spring 1948)
 Conservation: An American Story of Conflict and Accomplishment, New Jersey: Rutgers University Press (1957)
 The United States Political System and How it Works, (1957)
 The United Nations and How It Works, (1965)
 Roads to a New America, (1969)

References

External links 
 

1887 births
1969 deaths
20th-century American economists
American economics writers
American male non-fiction writers
20th-century American engineers
American political writers
Place of birth missing
20th-century American male writers
Golo (programming language). Golo is computer software, a programming language for the Java virtual machine (JVM). It is simple, with dynamic, weak typing. It was created in 2012 as part of the research activities of the DynaMid group of the Centre of Innovation in Telecommunications and Integration of service (CITI) Laboratory at Institut national des sciences appliquées de Lyon (INSA). It is distributed as free and open-source software under the Eclipse Public License 2.0.

History 
It has been built as a showcase on how to build a language runtime with invokedynamic. Golo is largely interoperable with the programming language Java and other JVM languages (e.g., numeric types are boxing classes from java.lang, and collection literals leverage java.util classes), that runs on the JVM.

In June 2015, Golo became an official Eclipse Foundation project. The project was terminated in September 2022.

Technical details 
The language features have been initially designed around the abilities of invokedynamic – JSR 292 that appeared in Java SE 7. Golo uses ahead-of-time compilation of bytecode. While the bytecode remains stable over a program execution, the invokedynamic-based reconfigurable call sites support the adaptive dispatch mechanisms put in place for helping the HotSpot just-in-time compiler (JIT) to extract reasonable performance.

Publications 
 Baptiste Maingret, Frédéric Le Mouël, Julien Ponge, Nicolas Stouls, Jian Cia and Yannick Loiseau. Towards a Decoupled Context-Oriented Programming Language for the Internet of Things. To appear in the 7th International Workshop on Context-Oriented Programming hosted at ECOOP 2015. Prague, Czech Republic. July 2015.
 Julien Ponge, Frédéric Le Mouël, Nicolas Stouls, Yannick Loiseau. Opportunities for a Truffle-based Golo Interpreter. Technical report arXiv:1505.06003 (cs.PL) and HAL-INRIA deposit
 Julien Ponge, Frédéric Le Mouël and Nicolas Stouls. Golo, a Dynamic, Light and Efficient Language for Post-Invokedynamic JVM. In Procs. of PPPJ'13. Stuttgart, Germany. September 2013. DOI link. HAL-INRIA deposit. Slides.

See also 

 List of JVM languages

References 

 
 
 
 ]

External links
 
 Golo at GitHub repository
 Golo incubation page at Eclipse.org
 Eclipse integration for Golo
 Netbeans module to support Golo

Programming languages
JVM programming languages
Software using the Eclipse Public License
I Measure U. IMeasureU, Ltd. (IMU) is a company that specializes in wearable technology. They develop inertial measurement units that analyze body movements in sports. The company combines sensor data with computational models to model human body movement. IMeasureU has collaborated with Athletics Australia runners.

In July 2017, the company was acquired by Vicon, an English company specializing in motion capture. The acquisition aimed to integrate Vicon's camera systems with IMeasureU's sensors.

On 23 June 2015, IMeasureU launched an Indiegogo campaign seeking to raise US $200,000 to develop a consumer product.

See also
Running injuries
Biomechanics of sprint running

References

External links
 IMeasureU

Wearable devices
Companies related to wearable computers
Activity trackers
Manufacturing companies based in Auckland
Biomechanics
Sportswear brands
Running
Limbach L1700. The Limbach L1700 is a series of type certified German aircraft engines, designed and produced by Limbach Flugmotoren of Königswinter for use in light aircraft and motorgliders.

The series were originally designated as the SL1700 under its former certification and was changed to L1700 by company Service Bulletin no. 17.

Design and development
The L1700 is a four-cylinder four-stroke, horizontally-opposed air-cooled, petrol direct-dive engine design, based upon the Volkswagen air-cooled engine. It employs a single magneto ignition, one carburettor, is lubricated by a wet sump and produces  at 3600 rpm.

The L1700 was type certified by the European Aviation Safety Agency on 4 August 2006. The first engines in the series had originally been certified by the German Luftfahrt-Bundesamt (LBA) on 6 December 1971.

Variants
L1700 EA
Version that puts out  for takeoff and  continuously.
L 1700 EB 
Version that puts out  for takeoff and  continuously.
L1700 EO/EC
Version that puts out  for takeoff and  continuously.
L 1700 ED
Version that puts out  for takeoff and  continuously.

Applications

Specifications (L1700 EO/EC)

See also

References

External links

Limbach aircraft engines
Air-cooled aircraft piston engines
Sven Bylander. Sven Bylander (1877–1943) was a Swedish engineer who created steel reinforced buildings, designing some of the first steel-framed buildings in London. His frames included the Ritz Hotel and Selfridges Department Store, which were two of his most memorable works. His standardization methods were instrumental in development of the  LCC (General Powers) Act 1909.

Biography

Sven Bylander was born in 1877 in Sweden. He learned about steel in a shipyard and incorporated that knowledge into buildings beginning in Germany and the US. He arrived in London in 1902 and was employed by the Waring White Building Company. Prior to Bylander, British building codes and methods of using steel and concrete were haphazard and described by colleagues as consisting of "builders, in using steelwork in building simply piled one piece on top of another, stuck a few bolts in and called it constructional steelwork". The methods he brought to Britain and the influence of Harry Gordon Selfridge and the Concrete Institute led to the passing of the LCC (General Powers) Act 1909, also called the Steel Frame Act which for the first time, regulated construction of steel-reinforced structures.

Between 1904 and 1905, Bylander was hired as structural engineer for the architects Charles Mewès and Arthur J. Davis of Mewès and Davis, in the building of the Ritz Hotel, London's first important steel-framed building. The building attracted daily press notices on its progress and the innovations Bylander used, from his standardized drafting methods, to the numbering system of parts, to the cranes used to lift the steel beams into place.

In 1906, he was hired by Daniel Burnham, lead architect on the project, to assist with fireproofing and design of the structure to be built for Selfridges Department Store in London. Bylander found a warehouse in the Docklands district, made plans and contacted the Metropolitan Buildings Office. By 1907 his plan was approved and construction commenced finishing a year and a half later. Between 1908 and 1911 he built the Royal Automobile Club (RAC Club) with architects Mewès and Davis and in 1919 he designed the Bryant and May Factory in Liverpool, which is believed to be the earliest flat concrete slab construction in Britain.

The Ravenscourt Park Hospital, built in 1933, was the largest independent hospital in Europe when it was built and Bylander designed not only its steel frame, but the semi-circular cantilevered sun balconies as well.

He died 9 October 1943 in London.

Legacy
Bylander's sketches and designs are still in use and are currently held by The Building Archives. The firm Bylander (2000) Ltd. evolved from the firm founded by Sven Bylander and was dissolved in 1999.

References 

1877 births
1943 deaths
Swedish engineers
Structural engineers
Swedish expatriates in the United Kingdom
Stephen Myers (engineer). Stephen Myers  (born 3 August 1946) is an electronic engineer who works in high-energy physics.

Life 
Myers earned a bachelor's degree in electrical and electronic engineering in 1968 from Queen's University, Belfast, and completed his Ph.D. there in 1972. Thereafter he worked at  CERN.
In September 2008, he was appointed CERN Director of Accelerators and Technology,  and in 2014, he was appointed Head of CERN Medical Applications.

He has been awarded honorary doctorates by the University of Geneva in 2001, by Queen’s University, Belfast in 2003, and by Dublin City University in 2017. In 2013 Queen's University, Belfast named him an honorary professor.
He was elected as a fellow of the Institute of Physics in 2003, and of the Royal Academy of Engineering in 2012.
He became an honorary member of the European Physical Society in 2013, and of the Royal Irish Academy in 2015.

He was awarded the Duddell Medal and Prize of the Institute of Physics in 2003.
In 2010 he was awarded the International Particle Accelerators Lifetime Achievement Prize "for his numerous outstanding contributions to the design, construction, commissioning, performance optimization, and upgrade of energy-frontier colliders - in particular ISR, LEP, and LHC - and to the wider development of accelerator science".
With two other CERN directors he was jointly awarded the EPS Edison Volta Prize in 2012 and the Prince of Asturias Prize of Spain in 2013.
He became an Officer of the Order of the British Empire in 2013.

External links
Scientific publications of Stephen Myers on INSPIRE-HEP

References

Living people
1946 births
Alumni of Queen's University Belfast
British nuclear physicists
People associated with CERN
Experimental particle physics
Myers
Officers of the Order of the British Empire
People educated at St Malachy's College
Evolutionary systems. Evolutionary systems are a type of system, which reproduce with mutation whereby the most fit elements survive, and  the less fit die down. 

One of the developers of the evolutionary systems thinking is Béla H. Bánáthy.

 Evolutionary systems are characterized by "moving equilibria and the dynamics of coevolutionary interactions which can not be foreseen ex ante." 

The study of evolutionary systems  is an important subcategory of Complex Systems research.

See also 
 Biological system
 Emergent organization
 Evolutionary computation
 Evolutionary systems development

References

Further reading 
 Bentley, Peter, and David Corne. Creative evolutionary systems. Morgan Kaufmann, 2002.
 Csanyi, Vilmos. Evolutionary systems and society: a general theory. Durham, Duke University Press. (1989).
 Hommes, Carsien Harm. "Financial markets as nonlinear adaptive evolutionary systems." Tinbergen Institute Discussion Paper, No. 01-014/1 (2001)
 Rocha, Luis Mateus. "Selected self-organization and the semiotics of evolutionary systems ." Evolutionary Systems: The Biological and Epistemological Perspectives on Selection and Self- Organization, . S. Salthe, G. Van de Vijver, and M. Delpos (eds.). Kluwer Academic Publishers, (1998) pp. 341–358.

Systems theory
Widening (computer science). In computer science, especially model checking and abstract interpretation, widening refers to at least two different techniques in the analysis of abstract transition systems where infinite progressions of abstract states are replaced by a (computed or guessed) least fixed point. The use of the term in model checking is closely related to acceleration techniques, some authors reserving acceleration for exact computations.

Intuition 

While many computer programs can be understood in terms of machine states and transitions (see formal semantics of programming languages), their state spaces may be too large to fully represent and analyse. Modern analysis techniques therefore try to reason about abstract states, which correspond to many concrete states.

Often, the abstract states are structured in such a way that by repeatedly following the effect of program steps or by coarsening the abstraction, one obtains a chain of abstractions that is proven to terminate.

Use in model checking 

Widening techniques and the closely related acceleration techniques are used in the forward analysis of systems in the discipline of symbolic model checking. The techniques detect cycles, i.e. sequences of abstract state transitions that could be repeated. When such a sequence can be repeated over and over, yielding new states (e.g. a variable might be incremented at every repetition), the symbolic analysis of the program will not explore all of these states in finite time. For several important families of systems such as pushdown systems, channel systems or counter systems, subclasses amenable to so-called flat acceleration have been identified for which a complete analysis procedure exists that computes the whole set of reachable states. This type of forward analysis is also related to well structured transition systems, but well-structuredness alone is not sufficient for such procedures to be complete (for example, the coverability graph of a Petri net is always finite but in general, it overapproximates the true state space).

Use in abstract interpretation 

Cousot and Cousot
 have introduced a notion of widening while defining the framework of abstract interpretation. An example for the widening of an abstract domain that appears in abstract interpretation would be replacing the upper bound of an interval by .

References 

Model checking
Limbach L275E. The Limbach L275E is a German aircraft engine, designed and produced by Limbach Flugmotoren of Königswinter for use in UAVs.

Design and development
The L275E is a twin cylinder horizontally-opposed two-stroke, air-cooled, direct-drive petrol engine design, based upon the Volkswagen air-cooled engine. It employs a single magneto ignition, two carburettors, is lubricated by oil mixture lubrication with a fuel to oil ratio of 25:1 for mineral oil or 50:1 for synthetic oil and produces  at 7200 rpm.

Applications
CAC Fox

Specifications (L275E)

See also

References

External links

Limbach aircraft engines
Two-stroke aircraft piston engines
Air-cooled aircraft piston engines
Limbach L550E. The Limbach L550E is a German aircraft engine, designed and produced by Limbach Flugmotoren of Königswinter.

Design and development
The L550E is an air-cooled horizontally-opposed 550cc four-cylinder two-stroke petrol engine developing  at 7500 rpm which can drive a propeller either directly or geared. It employs a single magneto ignition, four carburettors, and is lubricated by oil mixture lubrication with a fuel to oil ratio of 25:1 for mineral oil or 50:1 for synthetic oil.

Iranian copy
Since at least 2014, the Iranian firm Mado has marketed a copy of the L550E. The Mado variant is used for the Iranian Shahed-136 UAV.

Xiamen Limbach
The Garpiya family of drones is powered by Limbach L550E from Xiamen Limbach.

Specifications (L550E)

See also

References

External links

Limbach aircraft engines
Two-stroke aircraft piston engines
Air-cooled aircraft piston engines
Eugène Meyer (inventor). Eugène Meyer was a French mechanic credited with making important contributions to the development of the bicycle. He received a French patent for wire wheels in 1868 and is now believed to be the person primarily responsible for making the penny-farthing feasible and widely known.

Biography
Meyer was born in Alsace and lived in Paris. He raced his own bicycles in order to promote them and placed 10th in the 1869 Paris-Rouen race. James Moore rode a Meyer high wheeler at the Midland Counties Championship in Wolverhampton in August 1870, and thereby introduced the design to England. Meyer died in Brunoy en Essonne at the age of 63.

References

External links 
Review of Bicycle Design: An Illustrated History with great image of "Eugène Meyer’s 1869 bicycle with tension spoking" "Courtesy of Keizo Kobayashi via MIT Press"

People from Alsace
19th-century French inventors
Cycle designers
Year of birth missing
Year of death missing
Seyrantepe Dam. The Seyrantepe Dam is an earth-fill embankment dam on the Peri River (a tributary of the Euphrates), located  northwest of Karakoçan on the border of Elazığ and Tunceli Provinces, Turkey. Its primary purpose is hydroelectric power generation and is the fifth dam in the Peri River cascade. Construction on the dam began in 2003 and its power station was commissioned in 2008. It contains two 29.39 MW Francis turbine-generators for a total installed capacity of 58.78 MW.  It is owned and operated by Limak Energy and Bilgin Energy. The sand and gravel-fill dam is  tall.

At the opening of the hydro plant, President (then-Prime Minister) Recep Tayyip Erdoğan used the opportunity to attack environmentalist critics, a campaign he sustained in office: he said 
 "While making these investments we are also taking the natural life into consideration. We know that most of the [environmentalist] criticisms in the media in this regard are ideological. On the other hand, we are already taking reasonable and sincere criticisms into account and we are examining them. Just like in the case where we consider the balance between democracy and security, we are continuing our balanced approach between development and environment. No one shall have any doubts on this. But we should not forget; while preaching environment, we should not forget to say that humans come first. Because humans come before anything else. The living conditions of our people are very crucial for us."
Speech during the opening ceremony of the Seyrantepe Hydroelectricity Plant,  Peri Suyu

See also

Pembelik Dam – upstream
Tatar Dam – downstream

References

Dams in Elazığ Province
Hydroelectric power stations in Turkey
Earth-filled dams
Dams completed in 2008
Energy infrastructure completed in 2008
Dams in Tunceli Province
Dams on the Peri River
21st-century architecture in Turkey
Young Turks (Bell Labs). The Young Turks were a group of leading scientists who worked at Bell Labs, who were insatiably curious about the science behind communications. Many of them were encouraged to take risks, free from the responsibilities of applying for grants or from teaching. "We were first-class troublemakers," Richard Hamming later recalled. "We did unconventional things in unconventional ways and still got valuable results. Thus management had to tolerate us and let us alone a lot of the time."

Members
 Philip Warren Anderson
 William O. Baker
 James B. Fisk
 Mervin Kelly
 John R. Pierce
 Richard Hamming
 Claude Shannon
 William Shockley
 Charles Townes
 John Tukey

See also
 The Idea Factory, a 2012 book by Jon Gertner about the history of Bell Labs, including details about the Young Turks and their work

References

Bell Labs
Kilnap Viaduct. The Kilnap Viaduct (known colloquially as the Eight-Arch Bridge) is an eight-arch railway viaduct located in Cork, Ireland. Built in 1845, it carried the Great Southern & Western Railway line to Cork over the valley of Glennamought River and Mallow Road. The viaduct is listed as a protected structure by Cork City Council.

Technical details
The eight-arch railway viaduct features rock-faced ashlar limestone piers with a cut stone impost supporting squared coursed limestone spandrels with dressed limestone string course. It has rock-faced limestone voussoirs leading to round-headed arches, ashlar limestone vaults to barrels and a squared coursed limestone parapet with cut stone coping. The viaduct was built by William Dargan.

As built, it was 420 ft long and 90 ft high.

See also 
 Cork railway tunnel

References 

Railway bridges in the Republic of Ireland
Bridges completed in 1845
Bridges in County Cork
Brown Line (Delhi Metro). The Brown Line (Line 12) is an approved line of the Delhi Metro. It will provide improved direct connections to eastern, southern and south-eastern Delhi with the Indira Gandhi International Airport and Faridabad to decrease the increasing traffic, congestion and pollution on roads. It will act as a link line, by joining four lines–Violet, Pink, Magenta and Golden lines with each other. It will start from Lajpat Nagar and will end in Saket G-Block. It will be  long with eight stations, all of which will be elevated. The line was approved by the Government of India and the foundation stone was laid for its construction by Prime Minister Narendra Modi on 14 March 2024, and work is yet to begin, as part of the fourth phase of the Delhi Metro's development. The line is slated to be completed by March 2026.

History 
The Brown Line was first conceived by the Delhi Metro Rail Corporation (DMRC) under the Phase IV of Delhi Metro's future expansion and development in July 2016. As per the plan, six new lines covering a length of about  have been planned to be added to the metro network, out of which the Brown Line will connect Lajpat Nagar with Saket, at a length of . The plans were finalized for implementation by the Government of Delhi in December 2018. In March 2019, the plans were approved for construction by the Government of India. Thus, land acquisition for Phase IV and Brown Line began from April 2019, and was completed in three years. Construction was supposed to begin from 2021, but was delayed due to the restrictions imposed by the government due to the COVID-19 pandemic. It was expected to be completed by 2025. On 13 March 2024, the Brown Line and the Indigo Line were approved by the cabinet, to be built at a cost of about . Hence, the foundation stone was laid for its construction by Prime Minister Narendra Modi on 14 March 2024, and work is yet to begin. Both the lines are slated to be completed by March 2026.

Stations 

The stations the Brown Line will have are:

Project timeline
 July 2016: The Phase IV plan consisting of six new lines, including the Brown Line, was created by the Delhi Metro Rail Corporation (DMRC).

 December 2018: The Phase IV and the Brown Line were approved by the Government of Delhi.

 March 2019: Both the Phase IV and the Brown Line were approved by the Government of India.

 April 2019: Land acquisition begins for the Brown Line.

 October 2023: The line is expected to be completed by mid-2025 or 2026. Construction is expected to begin from 2024.

 March 2024: The line was approved by the cabinet and the foundation stone was laid for its construction by Prime Minister Narendra Modi on 14 March 2024, and work is yet to begin. It is expected to be completed by March 2026.

Train info

See also
 List of Delhi Metro stations
 Transport in Delhi
 Delhi Metro Rail Corporation
 Delhi Suburban Railway
 Delhi Transport Corporation
 National Capital Region (India)

References 

Delhi Metro lines