omniomni/omni-engineering huggingface dataset:
Milltown Bridge (Milltown, Arkansas). The Milltown Bridge is a historic stone arch bridge in rural southeastern Sebastian County, Arkansas. The bridge carries County Road 77 across an unnamed brook just west of its junction with White Mountain Road. It is a two-span closed spandrel structure, with each arch spanning  and a total length of . The arches are formed out of rough-cut stone voussoirs. It was built in the 1930s with funding from the Works Progress Administration, and was, when listed on the National Register of Historic Places in 1990, one of only eight documented bridges of its type in the state. The bridge was delisted from the register in 2002.

See also
List of bridges documented by the Historic American Engineering Record in Arkansas
List of bridges on the National Register of Historic Places in Arkansas
National Register of Historic Places listings in Sebastian County, Arkansas

References

External links

Road bridges on the National Register of Historic Places in Arkansas
Historic American Engineering Record in Arkansas
National Register of Historic Places in Sebastian County, Arkansas
Stone arch bridges in the United States
Works Progress Administration in Arkansas
Transportation in Sebastian County, Arkansas
Parrish Dart. The Parrish Dart is an American canard-configuration homebuilt aircraft that was designed by Jimmy R. Parrish and produced by Parrish Aircraft Xperimental, Inc. of Plantation, Florida. It first flew in the Autumn of 1995. When it was available the aircraft was supplied in the form of plans for amateur construction.

Design and development
The Parrish Dart started in 1983 as a delta-winged design, but was developed into a canard configuration resembling a Rutan Long-EZ. It features a cantilever mid-wing, a two-seats-in-tandem enclosed cockpit under a bubble canopy, fixed tricycle landing gear main gear with a retractable nosewheel and a single engine in pusher configuration.

The aircraft is made from fiberglass, with the fuselage a fibreglass sandwich and the wings and canard built from fibreglass spars and solid-core fibreglass airfoil shapes cut with a hot-wire foam cutter. Its  span wing has a wing area of . The cabin width is . The cockpit features a side-stick at both seat positions and a right-mounted console. Rudder pedals and brakes are only fitted for the front seat. The acceptable power range is  and maximum engine weight is . The standard engine used is the  Volkswagen air-cooled engine.

The designer estimated the construction time from the supplied plans as 1500 hours.

Operational history
By 1998 the company reported that one aircraft had been completed and was flying.

In April 2015 only one example, the prototype, was registered in the United States with the Federal Aviation Administration.

Specifications (Dart)

References

External links
Photo of the Parrish Dart

Dart
1990s United States sport aircraft
1990s United States ultralight aircraft
1990s United States civil utility aircraft
Single-engined pusher aircraft
Mid-wing aircraft
Homebuilt aircraft
Canard aircraft
Aircraft first flown in 1995
Parrish Aircraft Xperimental. Parrish Aircraft Xperimental, Inc. was an American aircraft design firm based in Plantation, Florida and founded by Jimmy R. Parrish. The company specialized in the design of light aircraft, providing plans for amateur construction.

The company was founded to sell plans for the Parrish Dart design. The Dart design underwent a number of changes between its conception in 1983 as a delta-winged aircraft and its final 1995 canard configuration, greatly resembling the Rutan Long-EZ.

The company was incorporated on 5 April 1996 and in April 2015 its corporate filing status was listed as "inactive".

By 1998 the company reported that one aircraft had been completed and was flying. In April 2015 only one example, the prototype, was registered in the United States with the Federal Aviation Administration and it is unlikely that any others were constructed.

Aircraft

References

Defunct aircraft manufacturers of the United States
Ultralight aircraft
Homebuilt aircraft
Electrography (disambiguation). Electrography may refer to electrophotography, that is, Kirlian photography. 

Electrography may also refer to: 

 Measurement and recording of electrophysiologic activity for diagnostic purposes
 Electrocardiography (ECG or EKG), electrography of heart electrical activity and rhythm
 Electromyography (EMG), electrography of other muscle action potentials throughout the body
 Electroencephalography (EEG), electrography of brain waves (from outside the skull)
 Electrocorticography or intracranial EEG (iEEG or ECoG), EEG with direct contact to the cerebral cortex
 Electrooculography (EOG), electrography of intraocular potential differences
 Electroolfactography (EOG), electrography of olfaction (smell)
 Electroretinography (ERG), electrography of retinal cell action potentials
 Electronystagmography (ENG), electrography of eye muscle movements
 Electrocochleography (ECOG), electrography of cochlear auditory activity
 Electroantennography (EAG), electrography of insect antennae olfaction
 Electrogastrography (EGG), electrography of stomach smooth muscle
 Electrogastroenterogram (EGEG), electrography of stomach and bowel smooth muscle
 Electroglottography (EGG), electrography of glottal movement
 Electropalatography (EPG), electrography of palatal contact of the tongue
 Some kinds of electrical brain stimulation (EBS)
Charles Santori. Charles Santori is an American physicist. He obtained his Bachelor of Science degree from MIT in 1997 and then got his Ph.D. in applied physics from Stanford University six years later after finishing his studies on semiconductors with Professor Yoshihisa Yamamoto. In 2005 Charles joined HP Labs where he researches diamond photonics. A year before his graduation from Stanford he along with other classmates of Yamamoto team have invented quantum cryptography that used photon turnstile device. The same year, he published one of his most cited works on indistinguishable photons called Indistinguishable photons from a single-photon device.

References

1970s births
Living people
21st-century American physicists
Stanford University alumni
Massachusetts Institute of Technology alumni
Year of birth missing (living people)
Floodway (road). A floodway is a flood plain crossing for a road, built at or close to the natural ground level. It is similar to a causeway, but crosses a shallow depression that is subject to flooding, rather than a waterway or tidal water.

They are designed to be submerged under water, but withstand such conditions. Typically floodways are used when the flood frequency or time span is minimal, traffic volumes are low, and the cost of a bridge is uneconomic – in most cases, in rural areas.

See also
Flood control channel
Glossary of road transport terms
Low water crossing

Notes

External links

Flood control
Transportation engineering
Rivers
Hydraulic engineering
Stella Mary's College of Engineering. Stella Mary's College of Engineering is a private engineering college located in Azhikal, Kanyakumari District, India. The college was established in the year 2012 by Dr. Nazerath Charles, an entrepreneur and founder of Nova Educational Trust. The college offers both undergraduate and post-graduate courses in engineering. The College is accredited by National Assessment and Accreditation Council

Admissions
Admissions into all courses are done through merit and management basis. A certain percentage of seats go to the Anna University Single Window System (AU SWS) and gets filled as Merit and the remaining seats are filled through an exam followed by interview termed as management quota. This percentage may vary each year.

Courses
There are 5 courses offered in B.E/B.Tech and 1 in M.E
 B.E Civil Engineering
 B.E Mechanical Engineering
 B.E Computer Science Engineering
 B.E Electronics and Communication Engineering
 B.E Electrical and Electronics Engineering
 M.E Computer Science Engineering

Placement
The Placement Cell was established in 2013. The cell arranges campus interviews with organizations for placement of final year students, and arranges in-industry training for students. Campus placement training (HR, Technical, GD, Written Test) is given in the pre-final year for all eligible candidates.
The College has established industrial relationships with companies in India and Qatar.

Accommodation
The college has an on-campus guest house, boys' hostel and girls' hostel.

See also
List of engineering colleges in Tamil Nadu
Bapuji Memorial Higher Secondary School

References

External links
 Official Website

Engineering colleges in Tamil Nadu
Colleges affiliated to Anna University
Universities and colleges in Kanyakumari district
Educational institutions established in 2012
2012 establishments in Tamil Nadu
Austral Launch Vehicle. The Austral Launch Vehicle (ALV) is a concept for a re-usable launch vehicle first stage. It would use fly-back UAV boosters to reduce overall launch costs.

Proponents
The ALV concept is being developed  by Heliaq Advanced Engineering and the University of Queensland from Brisbane, Queensland (Australia). Additional involvement is from the United Kingdom, France and South Africa.

System

First stage
The ALV system uses between one and six boosters connected to a core. The boosters each have a V-tail system that, on launch, act as stabilising fins; during the return flight and landing, the V-tail provides directional control. After first stage separation, the boosters coast (ballistic cruise). After re-entry, at around 350 km down range, the wings deploy and the boosters manoeuvre for return flight to the launch site, using a deployable propeller driven by an engine, acting as a large UAV.

Second stage
The Second Stage core flies on after First Stage booster separation, with the stack. The core separates and returns to the atmosphere and Earth and is not recovered.

Third stage
After fairing separation, the Third Stage and Payload fly to orbit. Payload separation is as required for the mission. Third Stage deorbits and burns up on entry.

Testing
Flight tests were scheduled for late in 2015. The first successful flight of the ALV was completed on 23 December 2015.

Associated projects
 University of Queensland's SPARTAN-1 scramjet project

See also

Australian Space Agency

References

External links
 University of Queensland - Faculty of Engineering, Architecture and Information Technology
 Professor Michael Smart
 Heliaq Advanced Engineering

Proposed space launch vehicles
Space launch vehicles of Australia
Space programme of Australia
Proposals in Australia
Tobu 500 series. The , branded , is an electric multiple unit (EMU) train type operated by the private railway operator Tobu Railway on limited express services in Japan since 21 April 2017.  11 three-car sets (33 vehicles in total) have been built by Kawasaki Heavy Industries.

Design
The trains were built by Kawasaki Heavy Industries, with exterior and interior styling overseen by Japanese industrial designer Ken Okuyama. The driving cabs at each end of the three-car trainsets includes an automatically extending gangway connection to allow trains to be coupled or split en route.

The trains have active suspension, a first for trains operated by Tobu, and use permanent-magnet synchronous motor (PMSM) traction motors.

Naming
The trains are branded , a name derived from the English words "Variety" and "Liberty".

Operations

, the trains are used on the following services.

Exterior
The exterior livery consists of "champagne beige" with "forest green" and "future blue" (Tobu's corporate colour) highlights around the windows.

Formation
The fleet of three-car sets are formed as follows, with two driving motor ("M") cars and a non-powered trailer ("T") intermediate car.

The two motored cars each have one single-arm pantograph.

Interior
Each three-car set has a seating capacity of 161 passengers. Seat pitch is . Interior lighting is LED lighting. Wi-Fi and at-seat AC power sockets are provided.

The automated on-board passenger announcements use the voice of TV presenter .

Toilet facilities
Each trainset includes a universal access toilet, western-style toilet, and urinal, located in the centre car.

History

Tobu Railway officially announced initial details of the new trains on 22 April 2015. In April 2016, Tobu announced that the trains would be used on through services between  in Tokyo and  in Fukushima Prefecture via the Yagan Railway and Aizu Railway Aizu Line from spring 2017.

The first three sets, 501 to 503, were delivered from the Kawasaki Heavy Industries factory in Kobe in December 2016.

The 500 series "Revaty" trains were a recipient of the 2018 Laurel Prize from the Japan Railfan Club.

Sets 509, 510, and 511 were delivered in September 2020. These sets' delivery was the final working on the Chichibu Railway Mikajiri Line before its closure.

References

External links

 Tobu press release (22 April 2015) 
 Kawasaki Heavy Industries news release (22 April 2015) 
 Ken Okuyama Design news release

Electric multiple units of Japan
500 series
Train-related introductions in 2017
1500 V DC multiple units of Japan
Kawasaki multiple units
Association départementale Isère Drac Romanche. The Isère-Drac-Romanche Departmental Association (French: Association départementale Isère Drac Romanche) is a public administrative establishment in France formed by the Conseil d'État in 1936. Its purpose is to maintain the system of flood-risk protection in the plains of the Isère, Drac, and Romanche rivers by preserving the integrity of embankments and their associated works. The organization performs all research and labor necessary for their preservation and keeps the system under constant surveillance in order to guarantee its efficiency in protecting the land and property at stake behind the embankments.

Reinforcement work 
The Isère-Drac-Romanche Departmental Association performs important reinforcement work, employing techniques proper to civil engineering (embankment, pressure grouting, rockfill, gabion, sub-fluvial consolidation) and biological engineering (reinforced embankment, habitat restoration). As part of the Isère Amont and Romanche development projects, this mission now falls to SYMBHI, the Mixed Syndicate of the Hydraulic Basins of the Isère River (Syndicat Mixte des Bassins Hydrauliques de l'Isère). As new works are gradually built, the Isère-Drac-Romanche Departmental Association will assume their management. In other locations, like the regions of the downstream Isère, the Drac, and the Eau d'Olle, the association continues to perform research and work as needed.

Major projects completed by the Isère-Drac-Romanche Departmental Association
 2004 : the Charlet river bend at Gières (Isère)
 2004 : the Grangeage river bend at Meylan (Isère)
 2005 : the Quai Charpenay at La Tronche (Isère)
 2006 : the Gières loop (Isère)
 2007 : the Croix du Plan embankment at Bourg d'Oisans (Romanche)
 2008 : the barrier strip at the Romanche - Eau d’Olle confluence
 2009 : a metal-frame riverbank (Isère)
 2009 : the secured embankment at Fontaine (Drac)
 2010 : the embankment at Lumbin (Isère)

Members 
The Isère-Drac-Romanche Departmental Association includes delegates from the Conseil Général de l’Isère (Isère General Council) as well as from the 68 communes and 14 landowners' unions within the protected zone.

The 68 communes

The 14 unions

References 

Hydrology
Hydraulic engineering
Land management
Drainage
Pembient. Pembient is a biotech company in Seattle, Washington, United States that was founded with the goal of creating bioengineered wildlife products to fight poaching around the world.

History 

Pembient was founded in January 2015. Mathew Markus and George Bonaci discussed the possibility of reverse engineering and bioengineering wildlife products specifically rhino horn. Markus first thought of reverse engineering rhino horn 10 years ago when he read of the severity of the black market poaching industry, 1,200 rhinos were killed in South Africa in 2014, and the western black rhinos were declared extinct by the International Union for Conservation of Nature (IUCN). January 2015, it was announced that Pembient had been admitted to the inaugural class of Indiebio in San Francisco, a three-month business accelerator program awarding $50,000 and mentoring to biotech start-ups using synthetic biology.

In August 2017 Pembient launched its initial coin offering of PembiCoin which is a blockchain-based token that allows its holder to take delivery of one gram of biofabricated horn in the year 2022. As of 2018, the company was continuing their plan to flood the market with synthetic rhino horn to help end poaching.

Mission 

The goal of the company is to bioengineer rhino horn and elephant ivory tusks replacement products below the black market price in order to stop the threat to endangered species. One of their current projects is the creation of a synthetic rhino horn using techniques that replicate rhino DNA. Bonaci has stated that even though they are focused on one biochemical product, "Maybe in the future we'll do tissue engineering[or] whatever works for the market."

References

Companies based in Seattle
American companies established in 2015
2015 establishments in Washington (state)
Biotechnology companies of the United States
The Algorithm Auction. The Algorithm Auction is the world's first auction of computer algorithms. Created by Ruse Laboratories, the initial auction featured seven lots and was held at the Cooper Hewitt, Smithsonian Design Museum on March 27, 2015.

Five lots were physical representations of famous code or algorithms, including a signed, handwritten copy of the original Hello, World! C program by its creator Brian Kernighan on dot-matrix printer paper, a printed copy of 5,000 lines of Assembly code comprising the earliest known version of Turtle Graphics, signed by its creator Hal Abelson, a necktie containing the six-line qrpff algorithm capable of decrypting content on a commercially produced DVD video disc, and a pair of drawings representing OkCupid's original Compatibility Calculation algorithm, signed by the company founders. The qrpff lot sold for $2,500.

Two other lots were “living algorithms,” including a set of JavaScript tools for building applications that are accessible to the visually impaired and the other is for a program that converts lines of software code into music. Winning bidders received, along with artifacts related to the algorithms, a full intellectual property license to use, modify, or open-source the code. All lots were sold, with Hello World receiving the most bids.

Exhibited alongside the auction lots were a facsimile of the Plimpton 322 tablet on loan from Columbia University, and Nigella, an art-world facing computer virus named after Nigella Lawson and created by cypherpunk and hacktivist Richard Jones.

Sebastian Chan, Director of Digital & Emerging Media at the Cooper–Hewitt, attended the event remotely from Milan, Italy via a Beam Pro telepresence robot.

Effects 

Following the auction, the Museum of Modern Art held a salon titled The Way of the Algorithm highlighting algorithms as "a ubiquitous and indispensable component of our lives."

References

Algorithms
2015 in computing
Contexts for auctions
Frederick Hale Holmes. Frederick Hale Holmes (1812 – 1875) was a professor of chemistry at the Royal Panopticon of Science and Art and pioneer of electric lighting.

Career
In 1853 he demonstrated the ability of electro-magnetic generators to provide continuous current to power arc lighting and in 1856 patented a magneto to power an arc light for lighthouses which he demonstrated to Michael Faraday at Blackwall in 1857. 

His experiments with alternating current arc lighting at South Foreland Lighthouse in 1857-60 were the subject of a lecture by Michael Faraday at the Royal Institution. One of Holmes' generators built in 1867 and used at Souter Lighthouse is displayed at the Science Museum, London.

He obtained "letters patent" for the invention of "improvements in machines known under the name of magneto-electric machines" and "provisional [patent] protection" for "improvements in apparatus for the production of electric light", and "improvements in fog signals, suitable for lighthouses and lightships."

References 

1812 births
1875 deaths
British inventors
Lighting engineers
HackerRank. HackerRank is a technology company that focuses on competitive programming challenges for both consumers and businesses. Developers compete by writing programs according to provided specifications. HackerRank's programming challenges can be solved in a variety of programming languages (including Java, C++, PHP, Python, SQL, and JavaScript) and span multiple computer science domains.

HackerRank categorizes most of their programming challenges into a number of core computer science domains, including database management, mathematics, and artificial intelligence.

When a programmer submits a solution to a programming challenge, their submission is scored on the accuracy of their output. Programmers are then ranked globally on the HackerRank leaderboard and earn badges based on their accomplishments, which is intended to drive competition among users. In addition to individual coding challenges, HackerRank also hosts contests (often referred to by HackerRank as "CodeSprints") where users compete on the same programming challenges during a set period of time and are then ranked at the conclusion of the event. HackerRank is part of the growing gamification trend within competitive computer programming. The consumer side of their website is free for coders to use.

History 
HackerRank was founded as InterviewStreet Inc. by two NIT Trichy alumni, Vivek Ravisankar and Hari Karunanidhi. HackerRank is a Y Combinator-backed company, and was the first Indian company accepted into Y Combinator. They also participated in TechCrunch Disrupt in 2012, and currently have venture capital backing from Khosla Ventures and Battery Ventures.

Funding 
In July 2015, HackerRank received $7.5 million funding from Japanese firm Recruit Holdings’ HR technology fund. On February 13, 2018 HackerRank announced it had raised $30 million in Series C funding, led by JMI Equity.

Acquisition 
In December 2019, HackerRank acquired Mimir, a cloud-based service that provides tools for teaching computer science courses. Mimir is used by Google and some universities including Michigan State, UCLA, Oregon State and Purdue. Mimir is HackerRank’s first acquisition.

HackerRank for Work 
Their enterprise-side product, HackerRank for Work, is a subscription service that aims to help companies source, screen (CodePair), and hire engineers and other technical employees. The product is intended to allow technical recruiters to use programming challenges to test candidates on their specific programming skills and better understand their qualification for a certain role. Candidate's challenges, once submitted, are auto-scored and the results are then provided to the technical recruiter for review. In addition to screening, HackerRank also hosts programming hackathons, referred to as CodeSprints, as a way for companies to source technical candidates. HackerRank’s customers include Yahoo!, Quora, and Amazon.

See also 
 CodeChef
 CodeSignal
 Codeforces
 CodinGame
 Codewars
 LeetCode
 HackerEarth
 Topcoder

References

External links 
 HackerRank

Programming contests