omniomni/omni-engineering huggingface dataset:
Thor-Delta. The Thor-Delta, also known as Delta DM-19 or just Delta was an early American expendable launch system used for 12 orbital launches in the early 1960s. A derivative of the Thor-Able, it was a member of the Thor family of rockets, and the first member of the Delta family.

The first stage was a Thor missile in the DM-19 configuration (DM-18A / MB-3-I engine). The second stage was the Delta (AJ-10-142 engine), which had been derived from the earlier Able stage. An Altair solid rocket motor (X-248A-7) was used as a third stage.

The basic design of the original Vanguard upper stages, featuring a pressure-fed nitric acid/UDMH, regeneratively cooled engine, was kept in place, but with an improved AJ10-118 engine. More significantly, the Delta stage featured cold gas attitude control jets allowing it to be stabilized in orbit for restart and more precise burns.

The Thor-Delta was the first rocket to use the combination of a Thor missile and a Delta upper stage. This configuration was reused for many later rockets, and a derivative, the Delta II, remained in service until 2018.

Thor-Delta launches 
The Thor-Delta launched a number of significant payloads, including the first communications satellite, Echo 1A; the first British satellite, Ariel 1; and the first active direct-relay communications satellite, Telstar 1. All 12 launches occurred from Cape Canaveral Air Force Station Launch Complex 17. The launch of Telstar 1 used pad B, while all other launches were from pad A. All launches were successful except the maiden flight, which failed to place Echo 1 into orbit due to a problem with the second stage.

Launch list

Gallery

See also

References 

Thor (rocket family)
WhiskerControl. Whisker is a research control system developed within the University of Cambridge, UK, and marketed by Campden Instruments Ltd (UK) and the Lafayette Instrument Company (USA). It is implemented as a server that controls a range of physical devices (including digital switches for input and output devices such as levers and pellet dispensers, multiple monitors, sound cards, and touchscreens). The server communicates with clients via a TCP/IP network link and manages resources for them. Typically, individual clients are programs that implement tasks used in behavioural research (e.g. psychology and neuroscience), such as tasks involving operant chambers.

References 

Laboratory software
Garrett TPF351. The Garrett TPF351 is a turboprop engine designed by Garrett Engine Division of AlliedSignal Aerospace Company. Initiated by Garrett in October 1987, the TPF351-20 engine was selected by Embraer to power the Embraer/FMA CBA 123 Vector, a high-speed commuter "pusher" aircraft. It was first tested on May 19, 1989 and then ground tested and flight tested on a Boeing 720 on July 9, 1990. The first prototype CBA 123 was tested on July 18, 1990, followed by a flight to the Farnborough Air Show in September of the same year. Both programs were cancelled in 1992, when the TPF351 was nine months from engine certification.

Design 

It was built on the  TPE331-14 which power the Jetstream 41, keeping its combustor system and high pressure turbine, already of the right size.
The two-stage centrifugal compressor is scaled-up from the Garrett F109 turbofan of the Fairchild T-46 and Promavia Jet Squalus trainers.
The engine ran about  hotter than the TPE331-14 in the core.
It was Garrett's first free-turbine turboshaft, avoiding the high reduction gear of a single spool turboprop and allowing an easier starting since the gas generator is disengaged from the power turbine.
The HP spool turns at 31,500 rpm while the LP spool turns at 19,444, reduced to 1,700 for the propeller: a  reduction ratio.
Power can grow by 25% within the same size.

It is assembled from six modules: accessory gearbox, compressor, combustor, gas-generator turbine, power turbine, and propeller gearbox.
The FADEC provides torque-limiting protection, propeller synchronization, auto-propeller feathering and auto-relight.
It could have powered growth versions of the Beech Starship or Piaggio Avanti.
A large-diameter bore hole running through the compressor and turbines allow a concentric shaft to connect the power turbine to a front-mounted gearbox to convert it to a tractor configuration.

The engine was originally called the TPE331-16, but by 1988 it was renamed to the TPF351-20. The "TPF" represented "Turbine PropFan", while the -20 suffix indicated the  nominal thermodynamic power rating.

Applications
 Embraer/FMA CBA 123 Vector

Specifications (TPF351-20)

See also

References

Bibliography

 

TPF351
1990s turboprop engines
Delta A. The Delta A, or Thor-Delta A was an American expendable launch system used to launch two Explorer spacecraft in October 1962. A derivative of the Thor-Delta, it was a member of the Delta family of launch vehicles. The Thor-Delta itself was a Thor booster with an Able second stage and Altair third stage.

The first stage was a Thor missile in the DM-21 configuration, and the second stage was the Delta-A, an uprated version of the original Delta. An Altair solid rocket motor was used as a third stage. Both launches occurred from Cape Canaveral Air Force Station (CCAFS) Launch Complex 17B, and were successful. The first launched Explorer 14, and the second Explorer 15.

References 

Delta (rocket family)
Virtual network interface. A virtual network interface (VNI) is an abstract virtualized representation of a computer network interface that may or may not correspond directly to a network interface controller.

Operating system level
It is common for the operating system kernel to maintain a table of virtual network interfaces in memory.  This may allow the system to store and operate on such information independently of the physical interface involved (or even whether it is a direct physical interface or for instance a tunnel or a bridged interface).  It may also allow processes on the system to interact concerning network connections in a more granular fashion than simply assuming a single amorphous Internet (of unknown capacity or performance).

W. Richard Stevens, in volume 2 of his treatise entitled TCP/IP Illustrated, refers to the kernel's Virtual Interface Table in his discussion of multicast routing. For example, a multicast router may operate differently on interfaces that represent tunnels than on physical interfaces (e.g. it may only need to collect membership information for physical interfaces). Thus the virtual interface may need to divulge some specifics to the user, such as whether or not it represents a physical interface directly.

In addition to allowing user space applications to refer to abstract network interface connections, in some systems, a virtual interface framework may allow processes to better coordinate the sharing of a given physical interface
(beyond the default operating system behavior) by hierarchically subdividing it into abstract interfaces with specified bandwidth limits and queueing models. This can imply restriction of the process, e.g. by inheriting a limited branch of such a hierarchy from which it may not stray.

This extra layer of network abstraction is often unnecessary and may have a minor performance penalty.  However, it is also possible to use such a layer of abstraction to work around a performance bottleneck, indeed even to bypass the kernel for optimization purposes.

Application level
The term VIF has also been applied when the application virtualizes or abstracts network interfaces.  Since most software need not concern itself with the particulars of network interfaces, and since the desired abstraction may already be available through the operating system, its usage is rare.

See also 
 Loopback
 Network virtualization
 Virtual Interface Architecture

References

External links
 Linux Network Interfaces

Computer networks engineering
Space Communications and Navigation Program. The Space Communications and Navigation (SCaN) program places the three prime NASA space communications networks, Space Network (SN), Near Earth Network (NEN) (previously known as the Ground Network or GN), and the Deep Space Network (DSN), under one Management and Systems Engineering umbrella. It was established in 2006. It was previously known as the Space Communications & Data Systems (SCDS) Program.

History
Before NASA's administrator Michael D. Griffin created SCaN to direct an integrated networks program, different organizations at NASA Headquarters have managed the Agency's space communications capabilities and functions under separate Programs using a variety of administrative approaches.

The SCaN Office was established by direction of Griffin in a Memorandum entitled "Establishment of a Space Communications and Navigation Office," dated July 19, 2006. SCaN operates as a central organization within the Human Exploration and Operations Mission Directorate (HEOMD):

The Ground Network (GN) has since been renamed the Near Earth Network.

Services
SCaN is viewed as a service provider supporting interfaces and performing a standard set of functions, including:
 Forward data transfer (uplink to spacecraft)
 Return data transfer (downlink from spacecraft to ground)
 Dissimilar voice communications
 Emergency communications
 Post-landing communications
 Radiometric measurement
 Time correlation
 Service monitoring
 Ephemeris exchange
 Operational coordination
 Service scheduling.

Communications schemes
Communications with spaceborne platforms is performed by RF, with a selection of spectra, modulation, and encoding methods, enumerated below.

Spectra
The Space Network communicates with spacecraft using S-band, Ku-band, and Ka-band with planned laser/optical communications.

The Deep Space Network communicates with spacecraft using S-band, X-band, and Ka-band.

Modulation
SN uses phase-shift keying and phase modulation of the carrier signal.

Encoding
The Space Network (used for near-Earth communications) supports the following encoding schemes:
 BPSK
 QPSK/SQPSK
 8PSK
 Rate 1/2 convolutional coding
 SQPN
 PRN coding - used to reduce power spectral density for low bit rate signals, and for time transfer.

The Reed–Solomon method is used as the initial error-correcting block code prior to the selected secondary encoding scheme.

See also
 Indian Deep Space Network
 Tracking and Data Relay Satellite
 Eastern Range
 NASCOM

References

External links
 NASA.gov

Deep space networks
NASA radio communications and spacecraft tracking facilities
Delta C. The Delta C, or Thor-Delta C was an American expendable launch system used for thirteen orbital launches between 1963 and 1969. It was a member of the Delta family of rockets.

Configuration 
The first stage was a Thor missile in the DSV-2A (MB-3-II) configuration, and the second stage was the Delta D (AJ-10-118D), which was derived from the earlier Delta. The baseline Delta C used an Altair-2 (X-258) third stage, whilst the Delta C1 had an FW-4D third stage, which provided a higher payload capacity than the Altair. It is unclear whether two or three launches were made using the C1 configuration.

Launches 
The Delta C was launched from Cape Canaveral Launch Complex 17. Most launches carried NASA research satellites into low Earth orbit.

References 

Delta (rocket family)
Vehicles introduced in 1963
Vehicles discontinued in 1969
Delta D. The Delta D, Thrust Augmented Delta or Thor-Delta D was an American expendable launch system used to launch two communications satellites in 1964 and 1965. It was derived from the Delta C, and was a member of the Delta family of rockets.

The three-stage core vehicle was essentially the same as the Delta C. The first stage was a Thor missile in the DSV-2A configuration, and the second stage was the Delta-D, which was derived from the earlier Delta-A. An Altair-2 SRM was used as a third stage. The main difference between the Delta C and Delta D was the presence of three Castor-1 solid rocket boosters, clustered around the first stage.

Both Delta D launches were conducted from Cape Canaveral Air Force Station Launch Complex 17A. The first, on 19 August 1964, carried Syncom 3, the first satellite in a geostationary orbit. The last, on 6 April 1965, carried the first commercial communications satellite, Intelsat I.

References

Delta (rocket family)
Leiden Classical. Leiden Classical was a volunteer computing project run by the Theoretical Chemistry Department of the Leiden Institute of Chemistry at Leiden University.  Leiden Classical used the BOINC system, and enabled scientists or science students to submit their own test simulations of various molecules and atoms in a classical mechanics environment. ClassicalDynamics is a program (and with it a library) completely written in C++. The library is covered by the LGPL license and the main program is covered by the GPL. The project shut down on June 5, 2018.

Joining the project
Participation was possible via the BOINC manager.  Using this software one was once able to create an account in the project.  Then someone can make a model of a dynamic system and simulation participating run. There are several models possible, to interactions between molecules or planets.

User Submitted Calculations
To create a personal calculation, a user's model had to have six defined variables:
 Colors of the molecules
 Box in which the model is run
 Number of particles in the simulation
 Interaction between the particles
 Gravity
 Coulomb force
 Lennard-Jones interaction
 Morse interaction
 Rydberg interaction
 Harmonic spirit
 Harmonic bending
 Recurrent torsion interactions
 Distance conditions
 Confirmation parameter(s)

See also
 List of volunteer computing projects

References

External links
Leiden Classical website archive
Leiden Classical forum archive

Science in society
Free science software
Volunteer computing projects
BARD Offshore 1. BARD Offshore 1 is a 400 megawatt (MW) North Sea  offshore wind farm with 80 BARD 5.0 turbines. Since the owner could not buy such 5MW offshore wind turbines in sufficient numbers in 2006, Dr. Bekker set up its own production of turbines. This should serve as the legacy for his children. The systems were developed by aerodyn Energiesysteme GmbH. A plant for rotor blades and nacelle assembly was built in Emden and a plant for the offshore foundations in Cuxhaven. Two turbine prototypes were set up at the Rysumer Nacken in 2007, and another prototype in Hooksiel in 2008. 
Construction was finished in July 2013 and the wind farm was officially inaugurated in August 2013. The wind farm is located  northwest of the isle Borkum in  deep water.

Laying of cables to connect the wind farm started on 23 July 2009. The 200 km connection is the longest of its kind in the world. It is also the first connection of an offshore wind park realized as HVDC-transmission.
Construction of the wind turbines began in March 2010. The first turbine became operational at the beginning of December 2010. Construction was assisted by the purpose-built Wind Lift 1 barge / platform, which placed the 470 ton, 21 meter foundations on the sea bed.

The project has run into serious and unclear problems, including being three years behind schedule and, at a cost of €3 billion, run significantly over budget. A diver and a worker died during construction. The farm was supposed to go online in August 2013, but a series of setbacks, including a fire at a transmission station in March 2014, have delayed its activation. BARD went bankrupt in November 2013. Problems include overvoltage and harmonics between BARD and the BorWin 1 grid link and BorWin Alpha HVDC converter platform.

BARD's original owner had decided to make all components within the company, and troubles from the custom transformer are unrelated to standard equipment used elsewhere.

, most of the turbines were not supplying power to shore, costing ratepayers €2million per day.

In September 2015, StatKraft and Ocean Breeze extended their contract for two years.

By May 2016, the company website stated that the wind farm had produced , and was running stably at full capacity.

Availability increased from 66% in 2014 to 95% by 2017. The feed-in tariff is €150/MWh to €190/MWh until 2024. Macquarie Infrastructure and Real Assets purchased the facility in 2019.

See also 

 Wind power in Germany
 List of offshore wind farms
 Borkum Riffgat

References

External links 
Technical information
Official Site
BARD Offshore I Wind Farm, North Sea, Germany
LORC Knowledge - Datasheet for BARD Offshore 1
BARD Offshore 1 on 4c
Cable details
Current position and photos of Wind Lift 1
Bird density

Media articles
Knall auf hoher See
Bard 1 transmission problems continue
Kein Strom: Letzte Chance für BARD Offshore 1

Offshore wind farms in the North Sea
Wind farms in Germany
2013 establishments in Germany
Energy infrastructure completed in 2013
Arrow (motorcycle part manufacturer). Arrow Special Parts is an Italian motorcycle exhaust system manufacturer founded in 1985.

History
Arrow was founded in 1985 in Italy by Giorgio Giannelli to make high performance exhaust systems. The company's first association with motorsports success was with Belgian rider Jobé winning the 500 cc Motocross World Championship.

Since 2000 Arrow parts have been used on bikes that won 20 World Titles, in SBK, SS, MX and Supermoto. In 2008, Arrow was associated with winners of the MX1 World Championship, with David Philippaerts, S2 Supermoto World Championship with Adrien Chareyre, and SS World Championship with Andrew Pitt.

Arrow also makes steering dampers and competition footpegs.

See also 

List of Italian companies

References

Auto parts suppliers of Italy
Motorcycle parts manufacturers
Italian brands
Italian companies established in 1985
Automotive companies established in 1985
Exhaust systems
Mike Piersante. Mike Piersante is a recording engineer and mixer.

2009 Grammy Awards 
Mike Piersante won two Grammy Awards in 2009 for his work as Engineer/Mixer. The first Grammy was for "Please Read the Letter" a duet track by Alison Krauss and Robert Plant. Krauss and Plant sang this track as a duet which was released on the album Raising Sand, available on Rounder which won another 2009 Grammy for Mike Piersante for Album of the Year.

Recording 2021 Ionic Originals Recordings 
Piersante recorded and mixed the mid-2021 Bob Dylan recordings of "Blowin' in the Wind," "Masters of War," "The Times They Are A-Changin' (song)," "Simple Twist of Fate," "Gotta Serve Somebody," and "Not Dark Yet" produced by T-Bone Burnett for a one-time sale as Ionic Originals.

References

External links
 
 

Year of birth missing (living people)
Living people
Grammy Award winners
Place of birth missing (living people)
Audio production engineers
Camcon Technology. Camcon Technology (also Camcon Auto) is a Cambridge-based company focused on the core research and development of the Camcon Binary Actuator, a new class of digital valve technology. It develops high-speed and low-energy control of liquid and gas used in the healthcare industry.

About Camcon
Camcon is based in the UK's Silicon Fen and was founded by Wladyslaw Wygnanski in 2000  as a vehicle to support the development and commercialisation of a new class of binary actuating technology. The Intellectual Property company aims to make the Camcon Binary Actuator a worldwide standard and 32 worldwide patents have already been granted.

The company is developing products based on the Camcon Binary Actuator in a number of industrial markets, including oil & gas, medical, automotive and aviation, where its unique characteristics are deemed to offer the largest financial and technological return.

Camcon is funded by Hit & Run Music Publishing, the management team behind the Genesis (band) and ACUS Managing Partners, an active management venture capitalist that specialises in funding early-stage technology companies.

In 2008, Lord Young of Graffham took on the role of chairman and invested the capital that the company required to complete its current development programme and see the introduction of Camcon products into the market.

References

External links
 Official website

Actuators
Companies based in Cambridge
Digital technology
Gas technologies
Institution of Electronics and Telecommunication Engineers. The Institution of Electronics and Telecommunication Engineers (IETE) is India's leading recognized professional society devoted to the advancement of science, technology, electronics, telecommunication and information technology. Founded in 1953, it serves more than 120,000+ members through 60+ centers/sub centers primarily located in India (3 abroad). The Institution provides leadership in scientific and technical areas of direct importance to the national development and economy. Association of Indian Universities (AIU), Union Public Service Commission (UPSC) has recognized AMIETE, ALCCS (Advanced Level Course in Computer Science). Government of India has recognized IETE as a Scientific and Industrial Research Organization (SIRO) and also notified as an educational institution of national eminence. The IETE focuses on advancement of electronics and telecommunication technology. The IETE conducts and sponsors technical meetings, conferences, symposium, and exhibitions all over India, publishes technical and research journals and provides continuing education as well as career advancement opportunities to its members.

IETE today is one of the prominent technical institution to provide education to working professionals in India and is fast expanding its wings across the country through its 60+ centres. Since 1953, IETE has expanded its educational activities in areas of electronics, telecommunications, computer science and information technology. IETE conduct programs by examination, leading to DipIETE equivalent to Diploma in Engineering, AMIETE equivalent to B Tech, and ALCCS equivalent to M Tech. IETE started Dual Degree, Dual Diploma and Integrated programs in December 2011. DipIETE is a three year, six semester course whereas AMIETE is a four year, eight semester course. IETE conducts examination for the above said courses, twice a year once in June and in December. Courses are divided into two sections, Section A and Section B. Courses of IETE are recognized by IISc, IIT, NIT, IIIT, IIM, CMI, TIFR, ISI, IIIT various Central and State Universities. IETE graduates are eligible to take national levels tests like GATE, CAT, JEST etc. for Masters as well as for PhD admissions in various leading technical institutions across the country. AMIETE by examination is recognized by the AICTE and MHRD, Government of India, as equivalent to B.E./B.Tech. IETE is a member of ECI.

References

External links 
 http://ietedelhi.org//
 http://www.iete.org/theiete.htm
 http://www.iete-elan.ac.in
 https://web.archive.org/web/20120510141642/http://iete.org/presidentmsg.pdf
 

Indian engineering organisations
Telecommunications in India
Professional associations based in India
Electronic engineering
Telecommunication education