omniomni/omni-engineering huggingface dataset:
Nymore Bridge. The Nymore Bridge is a reinforced concrete deck arch bridge spanning the Mississippi River in Bemidji, Minnesota. The bridge, built in 1916, has three arch spans. It is significant for its use of a reinforcing system patented by George M. Cheney during a time when engineers were experimenting with reinforcing materials and systems.

The bridge was originally built to carry U.S. Route 2 (US 2) over the Mississippi River. The main city traffic is now carried by Minnesota State Highway 197 (MN 197), while US 2 now bypasses the city. The reinforcing system designed by George M. Cheney consists of an arched metal truss built of angles and gusset plates, separated into vertical panels, and then connected together. The metal truss was built first, then forms were constructed around it and concrete was poured around it. The steel truss becomes embedded in the concrete. The bridge is decorated with Classical Revival elements. The Classical Revival style was part of the City Beautiful movement popular at the time for civic structures. It connected Bemidji with the village of Nymore, which was later annexed into the city of Bemidji.

The bridge is  long,  wide, and has a center span of  with two adjacent spans of  each.  The maximum vertical clearance is .

See also
 
 
 
 
 List of crossings of the Upper Mississippi River
 List of bridges on the National Register of Historic Places in Minnesota
 National Register of Historic Places listings in Beltrami County, Minnesota

References

Road bridges on the National Register of Historic Places in Minnesota
Neoclassical architecture in Minnesota
Bridges completed in 1917
Buildings and structures in Beltrami County, Minnesota
Transportation in Beltrami County, Minnesota
Concrete bridges in Minnesota
U.S. Route 2
National Register of Historic Places in Beltrami County, Minnesota
Arch bridges in the United States
Metal bridges in the United States
Bridges of the United States Numbered Highway System
1917 establishments in Minnesota
Bridges over the Mississippi River
PSSC Labs. PSSC Labs is a California-based company that provides supercomputing solutions in the United States and internationally. Its products include "high-performance" servers, clusters, workstations, and RAID storage systems for scientific research, government and military, entertainment content creators, developers, and private clouds. The company has implemented clustering software from NASA Goddard's Beowulf project in its supercomputers designed for bioinformatics, medical imaging, computational chemistry and other scientific applications.

Timeline
PSSC Labs was founded in 1984 by Larry Lesser.  In 1998, it manufactured the Aeneas Supercomputer for Dr. Herbert Hamber of the University of California, Irvine (the physics and astronomy department); it was based on Linux and had a maximum speed of 20.1 Gigaflops.

In 2001, the company developed CBeST, software packages, utilities and custom scripts used to ease the cluster administration process.

In 2003 the company released the third version of its cluster management software with support for 32-bit and 64-bit AMD and Intel processors, Linux kernel and other open source tools.

In 2005, PSSC Labs demonstrated its new water-cooling technology for high-performance computers at the ACM/IEEE Supercomputing Conference in Seattle, Washington.

In 2007 the company focused on supercomputer development for life sciences researchers and announced its technological solution for full-genome data analysis, including assembly, read mapping, and analysis of large amounts of high-throughput DNA and RNA sequencing data.

In 2008 PSSC Labs designed the Powerserve Quattro I/A 4000 supercomputer for genome sequencing. In 2013 it released CloudOOP Server Platform for Big Data Analytics / Hadoop Server which offers up to 50TB of storage space in just 1RU.

The company Joined Cloudera Partner Program the following year and certified the CloudOOP 12000 in 2014 which is compatible with Cloudera Enterprise 5. In the same year MapR started using CloudOOP 12000 platform for record setting time series data base ingestion rate and the company Joined Hortonworks Partner Program.

In 2015 the company was CloudOOP 12000 certified which is Compatible with Hortonworks HDP 2.2.

References

External links 
 

Computer companies of the United States
Software companies based in California
Development software companies
Companies established in 1984
Computer hardware companies
Cloud computing providers
Privately held companies based in California
Companies based in Lake Forest, California
1984 establishments in California
Networking hardware companies
Software companies of the United States
Rex (software). (R)?ex or simply Rex is an open source remote execution, configuration management and software deployment tool. 
It combines Perl and Secure Shell (SSH) for a portable, centralistic  approach to its problem domain.

Rex is an acronym for "Remote Execution".

History 
Rex originated from the need of a flexible, parallel remote execution application with software deployment and configuration management capabilities. Unsatisfied with available implementations in 2010, the author of Rex, Jan Gehring, decided to implement a Perl-based tool to cope with his requirements.

Design 

Rex is a stand-alone application executing either a single command or so-called tasks. Tasks are specified on the command line and are defined in Rexfiles. A Rexfile takes a similar role for remote execution as a Makefile does for application installation.
It is defined via a small DSL, but is essentially a Perl script. Therefore, it can contain arbitrary Perl as well.

For code reuse, configuration instructions are placed in modules which can be included by a Rexfile. A template system for configuration files is available.

For Rex to be able to work, the managed targets must provide a running SSH server and a Perl 5 interpreter.

Rex serves a variety of applications. Examples are user & group, cron, filesystem, kernel module, process and virtual machine management.

Public recognition 
Rex is discussed on conferences and in related press releases.

It was voted under the Best Open Source solutions 2013 by Initiative Mittelstand.

See also

Comparison of open-source configuration management software
Infrastructure as code (IaC)
Infrastructure as Code Tools

References

External links 
 

Orchestration software
Free software programmed in Perl
NFC Institute of Engineering and Fertilizer Research. The NFC Institute of Engineering and Fertilizer Research (NFC-IEFR) was incorporated in 1986 by National Fertilizer Corporation of Pakistan (NFC) and is located in Faisalabad, Punjab, Pakistan. The first Principal/Director was Dr. Anwar ul Haq from 1986 to 2006. Thereafter Dr.Javaid Rabbani Khan served as Director from 2006 until 2013. Dr Shahid Raza Khan and Dr Ashraf Dogar also remained Director’s in 2013 and 2018, respectively. Mr.Essa Khan was the first Administrator/Registrar at NFC-IEFR and present Registrar is Engr. Adeel Safdar since 2021. From 1986 until 2021, Institute remained under the administrative control of National Fertilizer Corporation of Pakistan Ministry of Industries & Production Government of Pakistan. In 2021, Ministry of Education Govt. of Pakistan took over the administrative control. It is affiliated with University of Engineering and Technology, Lahore for awarding of engineering degrees.

Recognition
 Accredited by Pakistan Engineering Council.
 Affiliated with University of Engineering and Technology, Lahore

Campus
The university is spread over 25 acres. The main building of the institute has administration wing, central library, spectacular air-conditioned auditorium, seminar hall, conference room, IT and linguistic laboratories and research and development department. The academic block is composed of offices for faculty members, classrooms, laboratories and computational lab. For the extension of facilities in the IE&FR campus, a three-story multi purposes block has been constructed, which comprises a large number of multi-disciplined laboratories, classrooms and offices for faculty members.

Academics

Degree programs
The disciplines and the degree programs offered by the institute have been tabulated below. The regular duration of BS and MS/M Phil degree programs is 4 and 2 years, respectively.

Societies
Following is a list of the officially constituted societies:
 ASHRAE NFC Faisalabad Student Branch
 ASME IE&FR Student Section 
 IEFRian Forum
 Hostel Society
 Blood Donors Society
 Debating Society
 IEEE NFC Student Branch - Lahore Section
 Media Club - NFC IEFR (Media)

See also 
NFC Institute of Engineering and Technology, Multan

References

External links
 

Engineering universities and colleges in Pakistan
Research institutes in Pakistan
Universities and colleges in Faisalabad District
Engineering research institutes
Educational institutions established in 1998
1998 establishments in Pakistan
Peris JN-1. The Peris JN-1 is an American homebuilt aircraft that was designed by Jim Peris of Lancaster, Pennsylvania. When it was available the aircraft was supplied in the form of plans for amateur construction.

The plans for the JN-1 were originally marketed by the designer and then after his death, by his wife, Nancy Peris. Following her death the plans became no longer available.

Design and development
The JN-1 was designed to be a very economical aircraft to build and fly. The prototype was constructed for US$2500 in the mid-1980s. It features a strut-braced high-wing, a single-seat, enclosed cockpit accessed via a door, fixed conventional landing gear with wheel pants and a single engine in tractor configuration.

The aircraft is made from a combination of wood, foam and fiberglass. The main structure is built from sheet foam and covered in fiberglass, as are the fuselage bulkheads, the wing ribs, stabilizers, and the rudder. The fuselage longerons, wing and tail spars, the landing gear mounts, and firewall are all made from Douglas fir, with the spars solid, not laminates. The formers are made from foam, fiberglassed on both sides for strength. All fittings are made from 4130 steel. The landing gear is fabricated from an automotive leaf spring wrapped with 3-inch fiberglass and mounts wheelbarrow wheels. The wheel pants are made from foam, covered in fiberglass and then hollowed out. Its  span wing has no flaps, has a wing area of  and folds for ground storage or transportation. The acceptable power range is  and the standard engine used is the  Kawasaki 440 snowmobile powerplant.

The JN-1 has a typical empty weight of  and a gross weight of , giving a useful load of . With full fuel of  the payload for the pilot and baggage is .

The standard day, sea level, no wind, take off and landing roll with a  engine is .

The manufacturer estimates the construction time from the supplied plans as 800 hours. Builders have indicated that the plans are not very clear or complete and much is left up to the builder to figure out.

The designer said of the aircraft: "I didn’t go for any high-tech sort of plane; this one was fun to design and build. Really a very inexpensive hobby! I guess you could spend $2,500 in a couple of years playing golf or bowling. The test flight was a couple of hours long, and we had a lot of fun with a J-4 Cub and a Vagabond, all flying formation and taking pictures. It flies very stable, no bad habits, and cruises 55 to 60 mph. Takeoff is in 250 feet with climbout at 40 mph. Rate of climb is 600 feet/minute. Approach at 40 mph and land at about 28 mph. All speeds are indicated."

Operational history
By 1998 the designer reported that 20 aircraft were completed and flying.

In January 2014 three examples were registered in the United States with the Federal Aviation Administration, although a total of seven had been registered at one time.

Specifications (JN-1)

References

External links
Photos of the JN-1

JN-1
1980s United States sport aircraft
1980s United States ultralight aircraft
1980s United States civil utility aircraft
Single-engined tractor aircraft
High-wing aircraft
Homebuilt aircraft
Queensland Railways 2350 class. The 2350 class were a class of diesel locomotive built by English Electric, Rocklea, for Queensland Railways in 1973–1974. All were later sold to AN Tasrail.

History

The 2350 class was built for use on the Blackwater and Moura coal lines and based at Gladstone. The class became surplus following electrification of the coal lines and in 1987 were all sold to AN Tasrail where they all entered service as the ZB class. They were very similar to the Tasrail Za class. In fact, the first four ZA class's builder's numbers follow on in sequence from those of the 2350s and are followed by those of the 2370s.

In 1995, one was rebuilt by Australian National's Port Augusta workshop with a raked cab similar to the EL class and renumbered ZR1, while in 1997 a second was rebuilt at AN Tasrail's Launceston workshops with a more conventional cab as ZR2.

In 2003, three were sold to South Spur Rail Services, with two shipped to Western Australia to operate infrastructure trains with the fourth stripped for parts in Launceston, eventually being owned by Greentrains. Finally being scrapped in 2016, with the sole remaining WAGR R class, after being left exposed to heavy vandalism.

The remaining four locomotives are in storage at TasRail's East Tamar workshops, having been out of use since early 2014. One of these, ZB 5/2123 (2352), has been preserved by Launceston & North East Railway. It was finally delivered to their Lilydale yard on 27 May 2022, making it the first of its class in preservation. ZP1 was donated to the Don River Railway in 2023, while ZR2  was donated to the L&NER in February 2024.

References

External links 

Co-Co locomotives
Diesel locomotives of Queensland
Diesel locomotives of Tasmania
Diesel locomotives of Western Australia
English Electric locomotives
Queensland Rail locomotives
Railway locomotives introduced in 1973
3 ft 6 in gauge locomotives of Australia
Diesel–electric locomotives of Australia
Clock Constraints Specification Language. The Clock Constraint Specification Language or CCSL, is a software language for modeling relations among so-called clocks. It is part of the time model defined in the UML Profile for MARTE.

CCSL provides a concrete syntax to handle logical clocks. The term logical clock refers to Leslie Lamport's logical clocks and its usage in CCSL is directly inspired from Synchronous programming languages (like Esterel or Signal).

A solver of CCSL constraints is implemented in the TimeSquare tool.

References

Time
Unified Modeling Language
Queensland Railways 2800 class. The 2800 class are a class of diesel locomotive built by A Goninan & Co, Townsville for Queensland Rail between 1995 and 1998.

They are currently owned by Aurizon, and operate on the North Coast and Mount Isa lines.

History
The 2800 class were ordered to haul passenger and freight services on the North Coast line between Rockhampton and Cairns and on the Great Northern line between Townsville and Mount Isa. The initial order for 40 was later increased to 50. However, a miscommunication resulted in the builder's plates incorrectly being stamped as 202 to 211 which had been used by other A Goninan & Co locomotives, rather than the correct 323 to 332.

They now operate trains as far south as Brisbane. They are the only double ended diesel electric locomotives to have been built for Queensland Rail.

In February 2006, one locomotive was fitted with standard gauge bogies for use by QR National in New South Wales and Victoria, but the NSW Environment Protection Authority refused permission for it to be used in that state due to excessive noise emissions. In August 2009, it was converted back to narrow gauge for use in Western Australia. In 2013, three were reclassified as the 3200 class for use in NSW, following the installation of standard gauge bogies and a modified exhaust system that reduced low frequency noise emissions.

In 2015, 2814 derailed on the Mount Isa Line at Julia Creek, spilling sulphuric acid. 2814 flipped on its side and was deemed too damaged to repair, and as such was scrapped in 2017.

In the early hours of Wednesday 23 February 2022, 2811 along with 2338 derailed hauling a container train near Traveston after severe rain washed out the tracks. Both locomotives were turned onto their sides. 2811 is currently at UGL Rail's facility in Stuart, Queensland.

Status Table

References

Aurizon diesel locomotives
Co-Co locomotives
Diesel locomotives of Queensland
Queensland Rail locomotives
Railway locomotives introduced in 1995
Diesel–electric locomotives of Australia
General Electric locomotives
3 ft 6 in gauge locomotives of Australia
Standard gauge locomotives of Australia
Queensland Railways 2250 class. The 2250 class are a class of diesel locomotives rebuilt by Queensland Rail's Redbank Railway Workshops in 2004.

History
The 2250 class are former 1550 class (6), 2130 class (all 11), and 2141 class (all 8) locomotives that were rebuilt in 2004.

The rebuilds included new cabs, Dash 2 electronics, ZTR traction control equipment, EMD 645E engines from 1502s and the replacement of the roots blower supercharger with a turbocharger. They were also ballasted to  as they only operate on heavy coal trains.

20 locomotives were sold to Transnet in South Africa in 2014.

In Early 2020 5 Locomotives Order Very nice Used In South Australia by Aurizon for use on the Arrium iron ore railway to Whyalla steelworks.

In Jan 2025 5 Locomotive Repaint Into Aurizon Canary Livery.

References

Aurizon diesel locomotives
Co-Co locomotives
Diesel locomotives of Queensland
Diesel locomotives of Western Australia
Queensland Rail locomotives
Railway locomotives introduced in 2004
Diesel–electric locomotives of Australia
3 ft 6 in gauge locomotives of Australia
WXXM (data model). The Weather Information Exchange Model (WXXM) is designed to enable the management and distribution of weather data in digital format (XML).  WXXM version 2.0, set to be finalized in 2014, is based on Geography Markup Language (GML) and is one of the GML Application Schemas. It is being developed by the  US Federal Aviation Administration (FAA) and the European Organisation for the Safety of Air Navigation (EUROCONTROL).  WXXM is a member of a family of data models designed for use in aviation safety, notably Aeronautical Information Exchange Model (AIXM) and the Flight Information Exchange Model (FIXM).

Purpose
As of 2014, WXXM is an extension of IWXXM, which represents the operationally exchanged meteorological information defined by the International Civil Aviation Organization (ICAO).  WXXM uses a similar design approach to IWXXM, but can represent additional types of weather information not covered in IWXXM.

Model

WXXM has two main components. The package as a whole is referred to as WXXM:
The WXXM Conceptual Model (WXCM)
The WXXM XML Schema (WXXS)

History
WXXM 1.0 was introduced in 2007, representing METAR, SPECI, TAF, SIGMET and other ICAO information as specified in International Civil Aviation Organization (ICAO) Annex III.

WXXM 1.1 was released in 2010 with a number of additional products beyond ICAO Annex 3.

WXXM 2.0 was released in 2014 as a major update.  WXXM 2.0 removed data products that are authoritatively represented by ICAO in IWXXM 1.0 (METAR, SPECI, TAF, SIGMET) and incorporated IWXXM 1.0 design approaches.

WXXM Conceptual Model
The WXXM Conceptual Model is a conceptual model of the meteorological domain. It describes the features and their properties (attributes and associations) within the domain. Therefore, it can be used as the logical basis for weather databases.

The model is designed using the Unified Modelling Language (UML).

WXXM XML Schema
The WXXM XML Schema is an exchange model for weather data. It is an implementation of the Conceptual Model as an XML schema. Therefore, it can be used to send weather information to others in the form of XML encoded data, enabling systems to exchange weather information.

See also
 AIXM
 IWXXM
 TAF
 METAR
 SPECI
 SIGMET

References

External links
 WXXM home page
 http://www.eurocontrol.int/services/weather-information-exchange-model-wxxm

Industry-specific XML-based standards
GIS file formats
Jean-Pol Vigneron. Jean-Pol Vigneron (5 March 1950 – 24 June 2013) was a Belgian physics professor. Jean-Pol started his career working on semi-conductor physics, however he is best known for his later work on the physics of animal colours, photonic crystals, and naturally occurring optical structures.

In 2007, he was elected a member of the prestigious Royal Academies for Science and the Arts of Belgium, he was also a professor at the Université de Namur and lectured at the University of Ouagadougou in Burkina Faso and in Morocco. A conference in his honour was held in Namur in April 2014.

He is also known for having initiated the Living Light Conference series with the 2009 meeting in San Sebastian (Basque countries, Spain).

References

1950 births
2013 deaths
Belgian physicists
Academic staff of the Université de Namur
Pipistrel Spider. The Pipistrel Spider is a Slovenian ultralight trike, designed and produced by Pipistrel of Ajdovščina. The aircraft is supplied as a kit for amateur construction or as a complete ready-to-fly-aircraft.

The Spider was sold in Europe by Flight Team UG & Company AG of Ippesheim, Germany and was sometimes called the Flight Team Spider.

By October 2018 it was listed as a "legacy" product and production had ended.

Design and development
The aircraft was designed to comply with the Fédération Aéronautique Internationale microlight category, including the category's maximum gross weight of . The aircraft has a maximum gross weight of . It features a cable-braced hang glider-style high-wing, weight-shift controls, a two-seats-in-tandem open cockpit with an optional cockpit fairing, tricycle landing gear with wheel pants and a single engine in pusher configuration.

The aircraft is made from composites and steel tubing, with its double surface wing covered in Dacron sailcloth. A number of different wings can be fitted to the basic carriage, but typical is a  span wing is supported by a single tube-type kingpost and uses an "A" frame weight-shift control bar. The powerplant is a twin cylinder, air-cooled, two-stroke, dual-ignition  Rotax 503 or the twin cylinder, liquid-cooled, two-stroke, dual-ignition  Rotax 582 engine. The aircraft has an empty weight of  and a gross weight of , giving a useful load of . With full fuel of  the payload is .

The standard day, sea level, no wind, take off and landing roll with a  engine is .

The manufacturer estimates the construction time from the supplied kit as 150 hours.

Operational history
By 1998 the company reported that 250 kits had been sold were flying.

Specifications (Spider)

References

External links
Official website archive page on archive.org
Official Spider photo gallery archive

Parasol-wing aircraft
1980s Yugoslav ultralight aircraft
Homebuilt aircraft
Single-engined pusher aircraft
Ultralight trikes
Spider
Single-engined piston aircraft
Aircraft with fixed tricycle landing gear