omniomni/omni-engineering huggingface dataset:
ITV Opale. The ITV Opale (Opal) is a French single-place, paraglider that was designed by Xavier Demoury and produced by ITV Parapentes of Épagny, Haute-Savoie. It is now out of production.

Design and development
The Opale was designed as a beginner glider. The models are each named for their approximate wing area in square metres.

Variants
Opale 24
Small-sized model for lighter pilots. Its  span wing has a wing area of , 35 cells and the aspect ratio is 4.1:1. The pilot weight range is . The glider model is CEN Standard certified.
Opale 27
Mid-sized model for medium-weight pilots. Its  span wing has a wing area of , 35 cells and the aspect ratio is 4.5:1. The pilot weight range is . The glider model is CEN Standard certified.
Opale 30
Large-sized model for heavier pilots. Its  span wing has a wing area of , 35 cells and the aspect ratio is 4.6:1. The pilot weight range is . The glider model is CEN Standard certified.

Specifications (Opale 27)

References

Opale
Paragliders
ITV Polaris. The ITV Polaris is a French single-place, paraglider that was designed by Xavier Demoury and produced by ITV Parapentes of Épagny, Haute-Savoie. It is now out of production.

Design and development
The Polaris was designed as an intermediate glider. The models are each named for their approximate wing area in square metres.

Variants
Polaris V2 24
Small-sized model for lighter pilots. Its  span wing has a wing area of , 51 cells and the aspect ratio is 5.12:1. The pilot weight range is . The glider model is AFNOR Standard certified.
Polaris V2 26
Mid-sized model for medium-weight pilots. Its  span wing has a wing area of , 51 cells and the aspect ratio is 5.12:1. The pilot weight range is . The glider model is AFNOR Standard certified.
Polaris V2 28
Large-sized model for heavier pilots. Its  span wing has a wing area of , 51 cells and the aspect ratio is 5.12:1. The pilot weight range is . The glider model is AFNOR Standard certified.

Specifications (Polaris 26)

References

Polaris
Paragliders
STARlight. STARlight is a computer simulation (Monte Carlo) event generator program to simulate ultra-peripheral collisions among relativistic nuclei.  It simulates both photonuclear and two-photon interactions.  It can simulate multiple interactions among a single ion pair, such as vector meson photoproduction accompanied by mutual Coulomb excitation.

These reactions are currently the primary method of studying photo-nuclear and two-photon interactions.

History

STARlight was initially written in the late 1990s, in FORTRAN.  After a period of expansion to include additional final states, etc. it was recoded into C++ in the early 2000s.  The code is now hosted on the Hepforge code repository.

Reactions simulated
 Two-photon production of lepton pairs
 Two-photon production of single mesons
 Photonproduction of vector mesons
 Generalized photoproduction (via an interface to DPMJet)

STARlight has been used by both STAR and PHENIX, at RHIC, and at the ALICE, CMS, ATLAS and LHC-b experiment at the Large Hadron Collider, for simulations of ultra-peripheral collisions.

STARlight is designed to handle complex reactions involving multiple photon exchange between a single ion pair.  These reactions are important at heavy ion colliders, because, with the large nuclear charges, the probability of multi-photon interactions in near grazing collisions (impact parameter b just slightly above twice the nuclear radius) is large. STARlight does this by calculating cross-sections in an impact-parameter dependent formalism.

One of its major successes was the successful prediction of the cross-sections for ρ0 photoproduction at both RHIC and the LHC.  It also accurately predicted the cross-section for e+e− pair production at RHIC and the LHC, using lowest order quantum electrodynamics.  The latter reaction is important because it shows that there are no large higher order corrections, as could be expected because of the large nuclear charge. In both of the RHIC results, the presence of neutrons in downstream zero-degree calorimeters was used in the trigger, selecting events with impact parameters less than about 40 fermi; these events were then searched for photoproduced ρ0.

A detailed description of the code is available.

References

Computational particle physics
Nuclear physics
ITV Tomahawk. The ITV Tomahawk is a French single-place, paraglider that was designed by Xavier Demoury and produced by ITV Parapentes of Épagny, Haute-Savoie. It was introduced in 2003, but is now out of production.

Design and development
The Tomahawk was designed as an intermediate glider. The models are each named for their approximate wing area in square metres.

Variants
Tomahawk 25
Small-sized model for lighter pilots. Its  span wing has a wing area of , 56 cells and the aspect ratio is 4.9:1. The pilot weight range is . The glider model is CEN Standard certified.
Tomahawk 28
Mid-sized model for medium-weight pilots. Its  span wing has a wing area of , 59 cells and the aspect ratio is 5.13:1. The pilot weight range is . The glider model is CEN Standard certified.
Tomahawk 31
Large-sized model for heavier pilots. Its  span wing has a wing area of , 59 cells and the aspect ratio is 5.13:1. The pilot weight range is . The glider model is CEN Standard certified.

Specifications (Tomahawk 28)

References

Tomahawk
Paragliders
ITV Turquoise. The ITV Turquoise is a French two-place, paraglider that was designed by Xavier Demoury and produced by ITV Parapentes of Épagny, Haute-Savoie. It is now out of production.

Design and development
The Turquoise The aircraft was designed as a tandem glider for flight training and as such was referred to as the Turquoise Bi, indicating "bi-place" or two seater. The models are each named for their approximate wing area in square metres.

Variants
Turquoise 38 Bi
Small-sized model for lighter crews. Its  span wing has a wing area of , 46 cells and the aspect ratio is 4.6:1. The pilot weight range is .
Turquoise 43 Bi
Large-sized model for heavier crews. Its  span wing has a wing area of , 46 cells and the aspect ratio is 4.6:1. The pilot weight range is . The glider model is IA Standard certified.

Specifications (Turquoise 43 Bi)

References

Turquoise
Paragliders
ITV Parapentes. ITV Parapentes (ITV Paragliders) is a French aircraft manufacturer based in Doussard and formerly in Épagny, Haute-Savoie. The company specializes in the design and manufacture of paragliders in the form of ready-to-fly aircraft. The company also constructs paramotor wings.

The company was founded in the 1980s and grew to be one of the largest paraglider manufacturers in the world.

In the early 2000s the company had a range of beginner gliders including the Opale and the Proxima, plus several intermediate gliders, such as the Diamant, Polaris and the Tomahawk. They also built a two-place glider for flight training, the Turquoise. All gliders were designed by Xavier Demoury.

Aircraft 

Summary of aircraft built by ITV:
ITV Asterion
ITV Awak
ITV Billy
ITV Bip Bip
ITV Boxer
ITV Bulldog
ITV Dakota
ITV Diamant
ITV Dolpo
ITV Fury
ITV Jedi
ITV Meteor
ITV Opale
ITV Papoose
ITV Pawnee
ITV Polaris
ITV Proxima
ITV Shakra
ITV Siam
ITV Stewart Tandem
ITV Tepee
ITV Thanka
ITV Tomahawk
ITV Tsampa
ITV Turquoise
ITV Vega

References

External links

Company old website location archives on Archive.org

Aircraft manufacturers of France
Ultralight aircraft
Paramotors
Paragliders
Companies based in Auvergne-Rhône-Alpes
Summerhill (Mount Duneed). Summerhill is a prefabricated iron cottage at 155 Mount Duneed Road, Mount Duneed a suburb of Geelong, Victoria, Australia. It is notable because it demonstrates British technical accomplishment in the history of prefabricated building construction.

History 
The development of a galvanising process in the 1840s, the fabrication of rolled sections of wrought iron from about 1850, and the use of grooved or fluted rollers to improve the production of corrugated iron in 1844 enabled construction of this building. It demonstrates the innovative solutions provided by the use of imported prefabricated buildings to cope with housing shortages caused by the gold rushes in Australia and California in the early 1850s.

It is a rare example of a two-room prefabricated iron cottage and one of only a small number of this type of building remaining which date from the early 1850s. It is the only known curved roof single storey cottage extant in Victoria. It provides an example of the simple living conditions of some of the early settlers in Victoria. It is listed on the Victorian Heritage Register number H1131. It consists of two rooms and is believed to have been brought to Australia by Mr Joseph Williams with his family from England and lived in until a weatherboard house consisting of four rooms was erected in 1860 with further additions in the 1870s. It measures 24 feet by twelve feet and is 9.5 feet high to the top of the segmental arched roof.

Mr and Mrs Joseph Williams and their two sons George and James with their niece Elizabeth Frear arrived in Melbourne by sailing ship 'Lochiel' in 1853, and the cottage was erected in 1854.

References

Buildings and structures in Geelong
Prefabricated buildings
CAD Overlay. CAD Overlay is a commercial software application for raster-to-vector translation in 2D computer-aided design (CAD) and drafting — available between 1988 and 1996 as a third-party application for AutoCAD and other CAD systems.

Developed and marketed by Image Systems Technology, CAD Overlay was first released in January 1988 running on AutoCAD Version 2.6. CAD Overlay replaced the previous generation of automatic raster-to-vector translation systems by embedding scanned documents and images directly in the CAD system.

History 

CAD Overlay was derived from a custom AutoCAD application developed using the Nth Engine graphics board in 1987 by David Chassin for Image Integration Technology, a scanning service bureau in Schenectady, New York. In January 1988 Bob Godgart, David Chassin and Michael Mayernik formed Image Systems Technology in Troy, New York.

The first version of CAD Overlay was demonstrated at A/E/C trade show in Chicago in May 1988. Subsequent versions include CAD Overlay ESP, CAD Overlay GSX, and CAD Overlay LFX.

In 1995, Softdesk Inc. acquired Image Systems Technology and in 1996 Autodesk acquired Softdesk,. CAD Overlay was subsequently rebranded as Autodesk CADOverlay.

See also 

 Autodesk
 AutoCAD

References

External links 
 |CADylist Magazine Article "CAD Overlay 2001i"

Computer-aided design software
Jan Wielemaker. Jan Wielemaker (1960, Koudekerke) is a Dutch computer scientist. He initiated the SWI-Prolog  implementation of the Prolog programming language in 1987 while employed at the University of Amsterdam, and he continued its development after moving to the Vrije Universiteit Amsterdam. Since 2017, he has been associated with the Centrum Wiskunde & Informatica. In 2020, he became the Director of SWI-Prolog Solutions b.v. 

He is known for being the original author and one of the most extensive contributors to the SWI-Prolog, as well as the SWI-Prolog reference manual.

References 

1960 births
Dutch computer scientists
Living people
21st-century Dutch scientists
Logic programming researchers
AMOS (satellite bus). The AMOS (Hebrew: ), an acronym for Affordable Modular Optimized Satellite, is a family of light weight satellite bus for geostationary orbit communications satellite designed and manufactured by Israel Aerospace Industries (IAI) of Israel.

Families 
Little is known regarding the different variations. But it is known of at least two built versions and a third in development.

AMOS (original) 
The AMOS bus is a lightweight version used for satellites between , with 800 to 1700 watts of power. The satellite bus started with the AMOS-1, the smallest of all the family, and increased mass, payload successively in the AMOS-2 and AMOS-3.

AMOS 4000 
The AMOS 4000 platform is the second generation, a much bigger and sophisticated satellite bus. It is prepared for satellites weighing between  and with power generation between 3 and 12 kW. It offers more autonomous capabilities and advanced control applications. It is composed of three modules: Bus, Repeater and Earth Facing Antennas.

Only two satellites have used this bus: AMOS-4, massing  and generating 6 kW of power. And AMOS-6 at  and generating 10 kW. But AMOS-6 is enhanced by using electric propulsion for station keeping only. Orbit raising is still done by the more traditional and faster chemical propulsion.

AMOS E 
The next development of the AMOS satellite bus is the implementation of pure electric propulsion. The increased efficiency for orbit raising and station keeping in comparison to chemical propulsion can result in reductions of mass of up to 50%. The expected spacecraft mass will be in the  range and offer an expected life of 15 years. This new product will be ready by 2018 and IAI expect it to win some foreign orders.

List of AMOS-based satellites 
The currently known uses of the AMOS satellite bus has been for most of the AMOS series of civilian communications satellites operated by Spacecom, also of Israel.

 AMOS-1
 AMOS-2
 AMOS-3
 AMOS-4
 AMOS-6

See also 
 Ofeq – Ofeq family of satellites on which technology the first versions of the AMOS platform was based.
 EROS (satellite) – EROS family of Earth observation satellites also made by IAI.

References

External links 
 IAI site on the AMOS satellites

Satellite buses

Communications satellites
Satellites of Israel
Michael D. Fried. Michael David Fried  is an American mathematician working in the geometry and arithmetic of families of nonsingular projective curve covers.

Career

Fried received his undergraduate degree from Michigan State University in electrical engineering and then worked for three years as an aerospace electrical engineer. He then received his PhD from University of Michigan in Mathematics in 1967 under Donald John Lewis.

He spent two years as a postdoctoral researcher at the Institute for Advanced Study (1967–1969). He was a professor at Stony Brook University (8 years), University of California at Irvine (26 years), University of Florida (3 years)  and Hebrew University (2 years). He has held visiting appointments at MIT, MSRI, University of Michigan, University of Florida, Hebrew University and Tel Aviv University.

He has been an editor on several mathematics journals including the Research Announcements of the Bulletin of the American Mathematical Society, and the Journal of Finite Fields and its Applications.

Awards

He was included in the inaugural (2013) class of Fellows of the American Mathematical Society. He was also a Sloan Fellow (1972–1974), Lady Davis Fellow at Hebrew University (1987–1988), Fulbright scholar at Helsinki University (1982–1983), and Alexander von Humboldt Research Fellow  (1994–1996).

See also
Field arithmetic

References

External links

 Michael Fried's Home Page

Living people
20th-century American mathematicians
21st-century American mathematicians
American algebraists
Algebraic geometers
American number theorists
Fellows of the American Mathematical Society
Horace H. Rackham School of Graduate Studies alumni
Sloan Research Fellows
Year of birth missing (living people)
RepRap Snappy. The RepRap Snappy is an open-source fused deposition modeling 3D printer, part of the RepRap project, it is the most self replicating 3D printer in the world.

The RepRap Snappy is designed to address the core goal of the RepRap project of creating a 'general-purpose self-replicating manufacturing machine'. The RepRap Snappy is able to create 73% of its own parts by volume with a design that eliminates as many of the non 3D printed parts as possible including belts and bearings which are replaced with a rack and pinion system. The name Snappy comes from the use of snap fit connectors used on the small printed parts to construct larger pieces, this both cuts down on the use of non 3D printed parts and means a smaller build volume is needed on the machine producing the parts. The only non self replicating parts on the printer are the motors, electronics, a glass build plate and one 686 bearing, the 3D printed parts take around 150 hours to create. The RepRap Snappy received an honourable mention in the Uplift Prize Grand Personal Manufacturing Prize.

External links
RepRap Snappy page on RepRap.org
RepRap Snappy repository on Github

References

Open hardware electronic devices
3D printers
RepRap project
Self-replicating machines
Swan 46 Mk II. The Swan 46 Mk II is a Finnish  sailboat that was designed by Germán Frers as a cruiser-racer and first built in 1989.

The Swan 46 Mk II is a development of the Swan 46 Mk I with a modified keel and other changes.

Production
The design was built by Oy Nautor AB in Finland, from 1989 to 1997 with 28 boats completed, but it is now out of production.

Design
The Swan 46 Mk II is a recreational keelboat, built predominantly of glassfibre, with wood trim. It has a masthead sloop rig, a raked stem, a reverse transom, an internally mounted spade-type rudder controlled by a wheel and a fixed fin keel with a weighted bulb or optional stub keel and retractable centreboard. It displaces  and carries  of lead ballast.

The keel-equipped version of the boat has a draft of , while the centreboard-equipped version has a draft of  with the centreboard extended and  with it retracted, allowing operation in shallow water.

The boat is fitted with a British Perkins Engines diesel engine of  for docking and manoeuvring. The fuel tank holds  and the fresh water tank has a capacity of .

The design has sleeping accommodation for six people, with an off-set double berth in the bow cabin, two straight settees in the main cabin, along with a pilot berth and an aft cabin with a central double island berth. The galley is located on the port side just forward of the companionway ladder. The galley is of straight configuration and is equipped with a three-burner stove, an ice box and a double sink. A navigation station is opposite the galley, on the starboard side. There are two heads, one in the bow cabin on the port side and one on the starboard side aft.

The design has a hull speed of  and a PHRF handicap of 54 to 63 with the fin keel.

See also
List of sailing boat types

References

Keelboats
1980s sailboat type designs
Sailing yachts
Sailboat type designs by Germán Frers
Sailboat types built by Nautor Swan
JCSAT-4B. JCSAT-4B, known as JCSAT-13 (formerly known as Lippostar-1) before launch, is a geostationary communications satellite operated by SKY Perfect JSAT Group (JSAT). It was designed and manufactured by Lockheed Martin on the A2100 platform.

Satellite description
The spacecraft was designed and manufactured by Lockheed Martin on the A2100 satellite bus. It had a launch mass of  and a 15-year design life. Like most satellites based on the A2100 platform, it uses a  LEROS-1C LAE for orbit raising.

Its payload comprises thirty-two 27 MHz and twelve 36 MHz Ku band transponders for a total bandwidth of 1.296 GHz. The satellite is used primarily for multi-channel pay per view business. Besides the main beam, two steerable beams enable it to reconfigure its orbit services.

It's mainly used for broadcasting digital television channels. It has two fixed beams, the Japan Beam and the South East Asia Beam. The former offers coverage from the Middle and Near East through South West Asia, South East Asia, and Oceania, whereas the latter covers Indonesia and Malaysia. In addition to the two fixed beams, it offers two steerable beams to cover zones where demands have surpassed the fixed beam capacity.

History
On April 16, 2009, JSAT made its seventh order for an A2100-based satellite from Lockheed, the JCSAT-13 and Lippostar-1. It would feature 44 Ku band transponders with two steerable antennas for on-orbit reconfiguration. It was to be launched in 2013 for the 124°East slot, which would replace JCSAT-4A. The next day, April 17, Arianespace announced they had secured the contract to launch JCSAT-13 on an Ariane 5 ECA.

On March 23, 2012, JSAT announced that the expected launch date for JCSAT-13 was May 15, and it would replace JCSAT-4A at the 124° East slot to offer the SKY PerfecTV! digital broadcasting service. As scheduled, on May 15 at 22:13 UTC, an Ariane 5 ECA successfully launched JCSAT-13 and Vinasat-2 to a geostationary transfer orbit. JCSAT-13 separated from the top berth at 22:39 UTC, and first signals were acquired at 23:20 UTC. After the launch success, JCSAT-13 was renamed JCSAT-4B.

On the same day of the launch, JSAT announced an agreement with the Lippo Group to use JCSAT-4B to offer a direct-to-home satellite TV broadcast service across Indonesia. After reaching the 124°East, it was commissioned into service on July 10, replacing JCSAT-4A.

References

Communications satellites in geostationary orbit
Satellites using the A2100 bus
Spacecraft launched in 2012
Communications satellites of Japan
Satellites of Japan
Stuart Arnold. Stuart Arnold (1945–2015) was a UK systems engineering professional, with a degree in electrical engineering from Leeds University.

Stuart Arnold had a background in private and public sector engineering management applied to systems and software products and services. This spanned the leadership of engineering teams, the application of new technology and conducting research into systems engineering.

Stuart’s career started in microwave technology at Roke Manor Research in the UK. His systems engineering knowledge drew heavily on many years of international industrial experience working for Philips in the development, manufacture and product support of domestic, professional and defence systems. He was Software Engineering Manager for Thorn EMI Sensors before moving into government service as Systems Engineering Manager in the UK’s Defence Evaluation and Research Agency, later a QinetiQ Fellow and QinetiQ’s Systems Engineering Head of Profession.

Stuart contributed to establishing a common international understanding of the discipline of systems engineering, and to its presentation as a natural and essential element of business practice. As the Editor of the systems engineering International Standards, ISO/IEC 15288 and its companion assessment model ISO/IEC 15504 Part 6, Stuart was at the heart of ISO actions to establish systems engineering as a cardinal component of international trade and commerce. He was also a recognized contributor to both IEEE 1220 and EIA-632.

Stuart was a Chartered Engineer in the UK, a Fellow of the Institution of Engineering and Technology, and a Fellow of the International Council of Systems Engineering (INCOSE).

Achievements 
 Editor of ISO/IEC 15288:2003 Systems life cycle processes.
 PhD in Systems Engineering at Cranfield University in 2009, with a thesis entitled "Transforming system engineering  principles into integrated project team practice".
 Appointed as a visiting professor by the Royal Academy of Engineering to the University of Hertfordshire in 2009.
 Editor of ISO/IEC 15504:2013 Process assessment—Part 6: An exemplar system life cycle process assessment model.

Notable publications 
 Systems engineering - Coping with complexity (by Richard Stevens, Peter Brook, Ken Jackson, Stuart Arnold) -- Pearson Education, 1998—, 9780130950857.

References 

1945 births
2015 deaths
Systems engineers
English engineers