omniomni/omni-engineering huggingface dataset:
Avia BH-20. 
The Avia BH-20 was a civil trainer aircraft built in Czechoslovakia in 1924. It was a single-bay, unstaggered biplane of conventional configuration. The wings were braced with N-struts at around half-span. The pilot and instructor were seated in tandem, open cockpits.

Specifications

References

 
 Němeček, V. (1968). Československá letadla. Praha: Naše Vojsko.

1920s Czechoslovak civil trainer aircraft
BH-20
Biplanes
Single-engined tractor aircraft
Conserver. Conserver is a serial console management system that provides remote access to system consoles and logs to a central (master) host. It supports both local and network serial connections and allows replay of the server console history even if the server is down. Multiple users can connect to a single serial connection, with one having write-access.

History 
"Console server" as it was originally known, was written by Tom Fine, and was presented with source code to the world at large during LISA IV, in Colorado Springs in 1990. A similar program had previously been written at Purdue University.  Those authors assumed that Fine's code was based on their version, so forked Fine's code, modified it and released it as version 8.  This forked into different versions (generally v8.<something>) used by Sun Microsystems,  IBM, and numerous others.  Bryan Stansell later merged the forks with most features and added TCP Wrapper access control, SSL encryption, UDS networking and PAM authentication support; as well as accepting patches submitted by others.

Modern usage 
The conserver was written to be used with RS-232 serial wired multi-port cards. Modern day setups (generally) use separate management Ethernet networks and console servers. In some cases some form of reverse telnet or SSH connection is used; alternatively, an additional level of indirection can be interposed: the server provides a Serial over LAN service via IPMI, and a command-line utility connects to the server.  This socket can then be used as a "virtual reverse telnet" connection. conserver is not limited to any one form of network protocol, and can handle these setups, as well as log the console output of virtual machines.

Conserver is generally used in computer cluster setups too, logging messages either via a terminal server or with an instance running on every node monitoring the console of the next machine, known as daisy-chaining.

See also 

 Console server
 Out-of-band management

References

External links

Manual pages

Console Server and Adapter References 
Zonker's Greater Scroll of Console Knowledge

Other 
 Improving server management with Minicom and conserver by Paul Virijevich September 6, 2006
 Tip of the Trade: Conserver  by Carla Schroder May 8, 2007
 Lights Out Management by hcoyote on Thu, 2006-11-09

Free network management software
Out-of-band management
Windows administration
Linux software
Unix software
Guru Nanak Dev Engineering College, Bidar. Guru Nanak Dev Engineering College and abbreviated as the GNDEC is a centre of technical education, in Bidar, Karnataka. It was established in the August 1980 by the Prabandhak Committee Gurudwara, Sri Nanak Jhira Saheb, Bidar. The college is approved by the All India Council for Technical Education (AICTE).

History 
Initially Guru Nanak Dev Engineering college was affiliated to Karnataka University, Dharwad. When Gulbarga University was created, it came under the jurisdiction of Gulbarga University, Gulbarga.
 
Now the college is affiliated to Visvesvaraya Technological University, Belgaum and approved by All India Council for Technological Education (AICTE), New Delhi and accredited by National Board of Accreditation (NBA), New Delhi.

Sardar Joga Singh, President of Nanak Jhira Trust, established the premier institute in the year 1980.  The college started with an annual intake of 120 students, in three disciplines, and as of 2009 had an annual intake of 570 students in seven undergraduate disciplines and one master's discipline. It currently has 2800 students.

The college has an Administrative building, Auditorium, Central Library, Laboratories, Workshops, Seminar Halls, Digital class room and Hostel accommodation. The college has stringent intake standards. A Candidate who has passed the Second Year Pre-University or XII standard or equivalent examination with Physics, Chemistry, Mathematics, and Bio Technology and obtained at least 60% aggregate marks in these subjects is eligible.

Departments 

 Computer Science Engineering
 Information Science and Engineering
 Electronics and Communication Engineering
 Mechanical Engineering
 Electrical and Electronics Engineering
 Artificial Intelligence and Machine Learning
Computer Science & Engineering (Data Science)
 Civil Engineering
 Master of Business Administration
 Master of Technology

Notable alumni
Ravinder Singh, (author) of  I Too Had a Love Story Can, Love Happen Twice? "Like it happened Yesterday" and Your Dreams are Mine Now. New book "tell me a story"
Jaideep Sahni, Screen Writer, Song Writer of films like Chak De! India, Khosla Ka Ghosla, Company, Bunty Aur Babli and Rocket Singh: Salesman of the Year.
Kultar Singh Sandhwan,18th Speaker Of Punjab Legislative Assembly.

See also
 List of places named after Guru Nanak Dev

References 

Guru Nanak Dev Engineering College

Guru Nanak Dev Engineering College

Engineering colleges in Karnataka
Educational institutions established in 1980
Education in Bidar
Universities and colleges in Bidar district
Affiliates of Visvesvaraya Technological University
Memorials to Guru Nanak
Family Flight. Family Flight is an American television movie that originally aired on ABC on October 25, 1972. The film stars Rod Taylor and centers on a family whose plane crash-lands in the Baja California peninsula.  The film was one of the first times Taylor was cast to play a father.

Plot
A family on a small plane gets caught in a storm and crash lands in the desert. Short on food and water they manage to repair the plane. But the attempt is ruined by a family member draining the battery by falling asleep listening to the plane's FM radio the night before takeoff.  After admonishing the boy, the father attempts to manually start the plane from spinning the propeller with his arms.  The plane starts but the propeller lacerates the father's arm severely.  The family takes off with the son at the controls and attempts to land on a nearby aircraft carrier. They fail and have to try again.  In the end they are rescued and the father is given emergency surgery in the ship's hospital.

Cast
 Rod Taylor as Jason Carlyle
 Dina Merrill as Florence Carlyle
 Kristoffer Tabori as David Carlyle
 Janet Margolin as Carol Rutledge
 Gene Nelson as Aircraft Carrier Captain
 Richard Roat as Officer of the Deck
 Paul Kent as First Controller
 James Sikking as Second Controller
 Bill Zuckert as Frank Gross
 Ed Begley Jr. as Driver

Reception
Howard Thompson gave Family Flight a positive review in The New York Times, praising Rod Taylor's "fine, gutsy performance" and the "credible precision of the climax." New York Magazine also praised the "strong performances" and labelled it "a good adventure story".

References

External links
 

1972 films
1972 television films
American television films
American aviation films
Films directed by Marvin J. Chomsky
Films produced by Harve Bennett
Films set in Mexico
1970s American films
Power distribution unit. A power distribution unit (PDU) is a device fitted with multiple outputs designed to distribute electric power, especially to racks of computers and networking equipment located within a data center. Data centers face challenges in power protection and management solutions. This is why many data centers rely on PDU monitoring to improve efficiency, uptime, and growth.  For data center applications, the power requirement is typically much larger than a home or office style power strips with power inputs as large as 22 kVA or even greater.  Most large data centers utilize PDUs with 3-phase power input and 1-phase power output.  There are two main categories of PDUs: Basic PDUs and Intelligent (networked) PDUs or iPDUs.  Basic PDUs simply provide a means of distributing power from the input to a plurality of outlets.  Intelligent PDUs normally have an intelligence module that allow the PDU for remote management of power metering information, power outlet on/off control, and/or alarms.  Some advanced PDUs allow users to manage external sensors such as temperature, humidity, airflow, etc.

Form factors 

PDUs vary from simple and inexpensive rack-mounted power strips to larger floor-mounted PDUs with multiple functions including power filtering to improve power quality, intelligent load balancing, and remote monitoring and control by LAN or SNMP. This kind of PDU placement offers intelligent capabilities such as power metering at the inlet, outlet, and PDU branch circuit level and support for environment sensors.

Newer generation of intelligent PDUs allow for IP consolidation, which means many PDUs can be linked in an array under a single IP address. Next-generation models also offer integration with electronic locks, providing the ability to network and manage PDUs and locks through the same appliance.

In data centers, larger PDUs are needed to power multiple server cabinets. Each server cabinet or row of cabinets may require multiple high current circuits, possibly from different phases of incoming power or different UPSs. Standalone cabinet PDUs are self-contained units that include main circuit breakers, individual circuit breakers, and power monitoring panels. The cabinet provides internal bus bars for neutral and grounding. Prepunched top and bottom panels allow for safe cable entry.

See also 

 Uninterruptible power supply
 AC power plugs and sockets

References

External links 

 

Out-of-band management
Data centers
Mains power connectors
Pickering Interfaces. Pickering Interfaces is a test and measurement company headquartered in Clacton-on-Sea, United Kingdom.  Pickering designs, manufactures and markets a range of switching, simulation and cabling products in the LXI, PXI, and PCI platforms.  These products are sold into the functional test, hardware-in-the-loop simulation (HILS) and design verifications markets.

Pickering is a privately owned company with design and manufacturing facilities in Clacton-on-Sea, UK and Třinec in the Czech Republic, together with additional company operated direct sales and support operations in the US, Germany, France, Sweden and China.

Principal product range
Pickering's primary products are in the PXI, LXI, USB and PCI platforms, specifically in switching, programmable resistors, attenuators, power supplies, basic instrumentation, software and cabling for these products.

Pickering Interfaces group of companies
 Pickering Interfaces Ltd, Clacton-on-Sea, England.
 PIckering Interfaces Inc, Chelmsford, MA USA.
 Pickering Interfaces s.r.o., Třinec, Czech Republic.
 Pickering Interfaces GmbH, Haar-Salmdorf, Munich, Germany.
 Pickering Interfaces SARL, Noisel, Paris, France.
 Pickering Interfaces AB, Varberg, Sweden.
 品英仪器（北京）有限公司, 北京, China.

References

External links
 Pickering Interfaces web site
 Pickering Electronics reed relay web site
 PXI book - an overview of the PXI standard
 LXI book - an overview of the LXI standard
Switching book - an overview of switching for automated test systems

Technology companies of the United Kingdom
Cyclohexane (data page). This page provides supplementary chemical data on cyclohexane.

Material Safety Data Sheet  

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source and follow its directions.
Sigma Aldrich
SIRI
Science Stuff
Fisher Scientific

Structure and properties

Thermodynamic properties

Vapor pressure of liquid

Table data obtained from CRC Handbook of Chemistry and Physics 44th ed. The "(s)" annotation indicates equilibrium temperature of vapor over solid. Otherwise value is equilibrium temperature of vapor over liquid.

Distillation data

Spectral data

References

 

Chemical data pages
Chemical data pages cleanup
Third-brush dynamo. A third-brush dynamo was a type of dynamo, an electrical generator, formerly used for battery charging on motor vehicles.  It was superseded, first by a two-brush dynamo equipped with an external voltage regulator, and later by an alternator.

Construction
As the name implies, the machine had three brushes in contact with the commutator.  One was earthed to the frame of the vehicle and another was connected (through a reverse-current cut-out) to the live terminal of the vehicle's battery.  The third was connected to the field winding of the dynamo.  The other end of the field winding was connected to a switch which could be adjusted (by inserting or removing resistance) to give "low" or "high" charge.  This switch was sometimes combined with the vehicle's light switch so that switching on the headlights simultaneously put the dynamo in high charge mode.

Disadvantages
The third-brush dynamo had the advantage of simplicity but, by modern standards, it gave poor voltage regulation.  This led to short battery life as a result of over-charging or under-charging.

See also
 Amplidyne
 Metadyne

References
 Third Brush Generators - Yesterday's Tractors website

Electrical generators
Automotive charging circuits
Automotive electrics
Nathan Ames. Nathan Ames (November 17, 1826 in Roxbury, New Hampshire – August 17, 1865 in Saugus, Massachusetts) was a patent solicitor who held the first patent in the United States for an escalator-like machine. The patent (#25,076) was granted on August 9, 1859, for an invention he called "Revolving Stairs". The escalator had steps mounted on a continuous belt or chain.  He also patented machines for improvement in polishing leather during the time when Lynn's shoemaking industry was one of the largest in the world.  Another one of his patents was for a polygraph, an early copying machine that operated by using pens connected by wires. Another patent he held was for an improved grater.

A writer and a poet, Ames had a disquisition and a Class Ode published during his time at Harvard. His book of poetry Pirate’s Glen and Dungeon Rock was published in 1853. These poems were based the local pirate legend of Dungeon Rock.

His brother Joseph was an American portrait artist.

Ames was educated at Phillips Academy at Andover, and Harvard College.

His birth name was Nathan Eames, but it was legally changed to Nathan Ames in 1843.

References 

1826 births
1865 deaths
19th-century American inventors
Poets from New Hampshire
Harvard College alumni
People from Saugus, Massachusetts
People from Roxbury, New Hampshire
19th-century American poets
American male poets
Phillips Academy alumni
19th-century American male writers
Inventors from New Hampshire
Lancair 360. The Lancair 360 is a two-seat aircraft marketed in kit form. It is a low-wing monoplane of conventional configuration with retractable tricycle undercarriage. The Lancair Legacy was chosen to replace the Lancair 360 in 1999.

Variants
Lancair 360TC - Carbon Fiber Turbocharged

Specifications (Lancair 360)

References

360
1980s United States civil utility aircraft
Homebuilt aircraft
Single-engined tractor aircraft
Low-wing aircraft
Single-engined piston aircraft
Aircraft with retractable tricycle landing gear
Karhumäki Karhu 48B. The Karhumäki Karhu 48B was a Finnish 1950s four-seat monoplane.

Development
The Veljekset Karhumäki O/Y company had been formed in 1924 and concerned itself with licence manufacturing. In 1948 the company designed and built a prototype of the Karhu 48, a high-wing four-seat monoplane of mixed construction, with a fabric-covered steel-tube fuselage and fabric-covered wooden wings. This was followed up in 1949 with a second example, the Karhu 48B. A small number were built including a number on floats.

Specifications (Karhu 48B)

References

 
 
 

1950s Finnish civil utility aircraft
High-wing aircraft
Single-engined tractor aircraft
Aircraft first flown in 1948
Kawanishi E7K. The Kawanishi E7K was a Japanese three-seat reconnaissance seaplane mainly in use during the 1930s. It was allocated the reporting name Alf by the Allies of World War II.

Design and development
In 1932 the Imperial Japanese Navy requested the Kawanishi Aircraft Company produce a replacement for the company's Kawanishi E5K. The resulting design, designated the Kawanishi E7K1, was an equal span biplane powered by a 462 kW (620 hp) Hiro Type 91 W-12 liquid-cooled inline engine. The first aircraft flew on 6 February 1933 and was handed over to the navy for trials three months later. It was flown in competition with the Aichi AB-6 which was designed to meet the same 7-Shi requirement. The E7K1 was ordered into production as the Navy Type 94 Reconnaissance Seaplane () and entered service in early 1935. It became a popular aircraft, but was hindered by the unreliability of the Hiro engine. Later production E7K1s were fitted with a more powerful version of the Hiro 91, but this did not improve the reliability. In 1938 Kawanishi developed an improved E7K2 with a Mitsubishi Zuisei 11 radial engine, it first flew in August 1938 and was ordered by the Navy as the Navy Type 94 Reconnaissance Seaplane Model 2. The earlier E7K1 was renamed to Navy Type 94 Reconnaissance Seaplane Model 1.

Operational history

The type was used extensively by the Japanese Navy from 1938 until the beginning of the Pacific War, when E7K1 were relegated to second-line duties. The E7K2 continued in front-line service until 1943 and both versions were used in kamikaze operations during the closing stages of the war.

Variants
 E7K1
Production version with a Hiro Type 91 520 hp water-cooled W-12 engine, 183 built (including 57 built by Nippon Hikoki K.K.)
 E7K2
Re-engined version with a Mitsubishi Zuisei 11 radial engine, about 350 built (including 60 built by Nippon Hikoki K.K.)

Operators

 Imperial Japanese Navy Air Service

Specifications (E7K2)

See also

References

Notes

Bibliography

  (new edition 1987 by Putnam Aeronautical Books, .)
 
 Unknown Author. The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). Orbis Publishing, 1982–1985.

E07K, Kawanishi
Floatplanes
E07
Single-engined tractor aircraft
Biplanes
Aircraft first flown in 1933
Avia BH-23. 
The Avia BH-23 was a prototype night fighter aircraft built in Czechoslovakia in 1926. The design was derived from the BH-21 day fighter, incorporating structural changes made to the BH-22 trainer, and the type was originally designated BH-22N. Searchlights and other night-flying equipment were added, but the Czechoslovak Air Force were not interested in the project and no sale resulted.

Specifications

See also

References

 
 
 Němeček, V. (1968). Československá letadla. Praha: Naše Vojsko.

1920s Czechoslovak fighter aircraft
BH-23
Biplanes
Single-engined tractor aircraft
Albert Nürnberger. Franz Albert Nürnberger II (1854–1931) is regarded as one of the greatest German bow makers.

He was trained in bowmaking by his father Franz Albert I (1826–1894), son of Karl Gottlieb, in Markneukirchen. Albert Nürnberger established his own shop around 1880. 

He trained his son, Carl Albert (1885–1971), who also used his brand.
Unfortunately the  later workshop bows also used the same brand. 

Before World War I (and after as well, until death of Albert II in 1931) Nürnberger and W. E. Hill & Sons were of the same competing standard, the best workshops in the world.

His bows are highly sought after. Original "Albert Nürnberger" bows, made before 1931 are rarer, of a higher standard and highly priced. 

"He is known to have exported bows to the US, where the Wurlitzer shop represented him as "the greatest modern bow maker" (c. 1912).

Eugène Ysaÿe, Jan Kubelik, Fritz Kreisler and later David Oistrakh used these bows and considered them equal to bows by the old masters. Of course they all had more than one  good bow in their collection(s)." Gennady Filimonov (2007)

References

 Die Geigen und Lautenmacher -  by Lutgendorff, Frankfurt 1922
Encyclopedia of the Violin - Alberto  Bachmann
 
 
 
Deutsche Bogenmacher-German Bow Makers  Klaus Grunke, Hans Karl Schmidt, Wolfgang Zunterer 2000

External links
1  All about Bows
2 *Albert Nürnberger* bow

1854 births
1931 deaths
Bow makers
German luthiers
People from Markneukirchen
Dichlorofluoromethane. Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon with the formula CHCl2F. It is a colorless and odorless gas.  It is produced by fluorination of chloroform using a catalyst such as antimony trifluoride:
CHCl3 + HF → CHCl2F + HCl

Uses
Dichlorofluoromethane was used as a propellant and refrigerant.  Due to its role in ozone depletion, dichlorofluoromethane has been largely phased out. It has ozone depletion potential 0.04. Production and consumption has been since 2004 reduced to 15% of level from 1989 and it is to be phased out in 2015 according to Montreal Protocol.

Pyrolysis of a mixture of dichlorofluoromethane and chlorofluoromethane gives hexafluorobenzene:
3 CHCl2F + 3 CH2ClF → C6F6 + 9 HCl

Additional physical data
Its critical point is at 178.5 °C (451.7K) and 5.17MPa (51.7bar). At temperatures from 5K to 105K, it has one phase in the space group Pbca.

Safety
Its toxicity is comparable to that of chloroform.  Its TLV is 10ppm.

References

External links
 
 
 Termochemistry data at chemnet.ru
 Entry at Air Gas Liquide Encyclopaedia 

Hydrochlorofluorocarbons
Halomethanes
Ozone-depleting chemical substances
Refrigerants
Propellants
Carbon disulfide (data page). This page provides supplementary chemical data on carbon disulfide.

Material Safety Data Sheet  

The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its direction. MSDS available from Mallinckrodt Baker

Structure and properties

Thermodynamic properties

Vapor pressure of liquid

Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

Distillation data

Spectral data

References

 

Chemical data pages
Chemical data pages cleanup
Iris II. Iris II or Iris 2 or variants may refer to:
 HMS Iris II, Royal Navy ship
 , cargo ship in service 1963-67
 IRIS II, bulk carrier 224-m long, IMO:9286906 
 Abraham AS-2 Iris II, Abraham airplane of 1930s France
 Blackburn Iris II, variant of the Blackburn Iris airplane
 Iris II (album), 1987 album by Romanian rock band Iris
 Iris II: New Generation, a  South Korean TV series, also known as Iris II
 IRIS², a planned EU satellite constellation
 the 1968 satellite ESRO 2B, also known as Iris 2

See also 
 Iris (disambiguation)