omniomni/omni-engineering huggingface dataset:
Sun RPC. 
Open Network Computing (ONC) Remote Procedure Call (RPC), commonly known as Sun RPC is a remote procedure call system. ONC was originally developed by Sun Microsystems in the 1980s as part of their Network File System project.

ONC is based on calling conventions used in Unix and the C programming language. It serializes data using the External Data Representation (XDR), which has also found some use to encode and decode data in files that are to be accessed on more than one platform. ONC then delivers the XDR payload using either UDP or TCP. Access to RPC services on a machine are provided via a port mapper that listens for queries on a well-known port (number 111) over UDP and TCP.

ONC RPC version 2 was first described in  published in April 1988. In June 1988 it was updated by . Later it was updated by , published in August 1995. , published in May 2009, is the current version. All these documents describe only version 2 and version 1 was not covered by any RFC document. Authentication mechanisms used by ONC RPC are described in RFC 2695, RFC 2203, and RFC 2623.

Implementations of ONC RPC exist in most Unix-like systems. Microsoft supplied an implementation for Windows in their (now discontinued) Microsoft Windows Services for UNIX product; in addition, a number of third-party implementation of ONC RPC for Windows exist, including versions for C/C++, Java, and .NET (see external links).

In 2009, Sun relicensed the ONC RPC code under the standard 3-clause BSD license, which was reconfirmed by Oracle Corporation in 2010 following confusion about the scope of the relicensing.

See also
XDR – The grammar defined in RFC 1831 is a small extension of the XDR grammar defined in RFC 4506.
DCE
XML-RPC

References

Notes

External links
RFC 5531 - RPC: Remote Procedure Call Protocol Specification Version 2 (current version)
RFC 1831 - RPC: Remote Procedure Call Protocol Specification Version 2 (third published version)
RFC 1057 - RPC: Remote Procedure Call Protocol Specification Version 2 (second published version)
RFC 1050 - RPC: Remote Procedure Call Protocol Specification Version 2 (first published version)
Remote Procedure Calls (RPC) — A tutorial on ONC RPC by Dr Dave Marshall of Cardiff University
Introduction to RPC Programming — A developer's introduction to RPC and XDR, from SGI IRIX documentation.
Sun ONC Developer's guide
Netbula's PowerRPC for Windows (ONC RPC for Windows with extended IDL)
Netbula's JRPC (ONC RPC for Java)(supports J2SE, J2ME and Android
ONC/RPC Implementation of the University of Aachen (Germany)
Remote Tea (LGPL Java Implementation)
Remote Tea .Net (LGPL C# Implementation)
Distinct Corporation's ONC RPC for Windows
Linux Journal article on ONC RPC
Java NIO based ONC RPC library 

Application layer protocols
Internet Standards
Remote procedure call
Sun Microsystems software
Unix software
Telecoms & Internet converged Services & Protocols for Advanced Networks. The Telecoms & Internet converged Services & Protocols for Advanced Networks (TISPAN) is a standardization body of ETSI, specializing in fixed networks and Internet convergence.  It was formed in 2003 from the amalgamation of the ETSI bodies Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) and Services and Protocols for Advanced Networks (SPAN).

TISPAN's focus is to define the European view of the Next Generation Networking (NGN), though TISPAN also includes much participation from regions outside Europe.

TISPAN NGN Release 1 was published in December 2005 and contained the architectural foundations and basic specifications required in support of PSTN replacement. The TISPAN NGN architecture is based on sharing common components between cooperating subsystems. The TISPAN NGN architecture complies with the general reference model for next generation networks defined in ITU-T Recommendation Y.2011 [1] and is therefore layered with a service stratum and a transport stratum. Each of these layers is further decomposed into sub-systems that perform specific roles within the overall architecture. This allows new subsystems to be added over time to cover new demands and service classes. By making network resources, applications, and user equipment common to all subsystems, it ensures mobility of users, terminals and services as much as possible, even across administrative boundaries. A key subsystem is based on the architectures of 3rd Generation Partnership Project (3GPP) IP Multimedia Subsystem (IMS). TISPAN has been working with 3GPP to extend the IMS architecture with capabilities required in support of wire-line access.

TISPAN NGN Release 2 was finalized early 2008, and added support for IPTV services and Business Communications over the IMS.

Since early 2008, TISPAN has begun work on the third release of its NGN specifications with prime focus on IPTV enhancements, Content Delivery Networks (CDN) and home networking. In 2011, TISPAN published the specification of a functional architecture for Content Delivery Networks (CDN) and is now working on the specification of the protocols applicable to the reference points identified in this architecture (See ETSI TS 182 019)

The ETSI website on Next Generation Networking states:
"Standards for fixed NGN were developed by the now closed ETSI technical committee TISPAN. The TC has adopted the 3GPP™ core IMS specifications using Internet (SIP) protocols to allow features such as Presence, IPTV, Messaging, and Conferencing to be delivered irrespective of the network in use. Maintenance of NGN standards are now the responsibility of TC NTECH."

References

External links
 Official TISPAN web site
 An introduction to the TISPAN architecture

ETSI
Standards organizations
Vesuvius plc. Vesuvius plc is a British engineered ceramics company headquartered in London whose products are used by steelmakers and foundries as well as in the glass and solar energy industries. The company is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.

History

The company was founded by Isaac Cookson in 1704 as a collection of metal and glass businesses on Tyneside. In 1851 the Company diversified into lead manufacturing. In 1924 it merged with Lock Lancaster and W.W. & R. Johnson & Sons to form Associated Lead Manufacturers. It was first listed on the London Stock Exchange in 1930. In 1966 it was renamed Lead Industries Group and in 1979 it acquired the A.J. Oster Company, a non-ferrous metal producer. In 1982 it changed its name again to Cookson Group (reflecting the name of the company's founder) and in 1987 it bought the Vesuvius Crucible Company, a ceramics supplier.

Sir Robert Malpas was Chairman of the Group from 1991 to 1998, simultaneously serving as Co-Chairman of Eurotunnel from 1996 to 1998. In 2005 the Cookson Group chose to focus on high technology products and emerging markets. In 2008 it went on to acquire Foseco, a supplier to the foundry and steel industries. In December 2012 Cookson Group changed its name to Vesuvius, the former performance materials division was demerged to form a new company called Alent and the name Cookson ceased to be used.

Operations
The Company's operations are formed into four activities: Steel Flow Control, Foundry Technologies, Advanced Refractories and Precious Metals Processing.

References

External links
Official site
Yahoo profile

Engineering companies of the United Kingdom
Manufacturing companies based in London
Companies listed on the London Stock Exchange
Companies established in the 18th century
Companies established in 1704
1704 establishments in England
Manufacturing companies established in 1704
Chung Cheong University. Chung Cheong University () is a private technical university in Cheongju City, the capital of North Chungcheong province, South Korea.  It employs about 150 instructors and has approximately 5000 students enrolled.  The current president is Yu Sun Gyu (유선규).

Academics
The university's offerings are divided among the following departments:  Architectural Engineering; Interior Design; Fashion Design; Information Technology; Bio-chemical, Mechanical, Civil, Electrical and Semi-conductor Engineering; Mechatronics; Automotive and Avionic Engineering; Urban Planning; Food and Drug Analysis; Food Nutrition and Catering; Quality & Safety Engineering; Tourism; Business & Public Administration; Early Childhood Education; Social Welfare; Foreign Languages (English, Japanese and Chinese); Physical Education; Nursing; Dental Hygiene and Media Studies.

History
The university was opened in 1983 as "Chung Cheong Business and Industry College" (충청실업전문대학); however, the construction of the campus began two years before.

Sister schools
Chung Cheong University maintains a sisterhood relationship with North China Electric Power University, which has campuses in Beijing and Baoding.

See also
List of colleges and universities in South Korea
Education in South Korea

External links
Official school website, in English

Universities and colleges in North Chungcheong Province
Cheongju
1983 establishments in South Korea
Fritz Fiedler. Fritz Fiedler (born Potsdam 9 January 1899: died Schliersee 8 July 1972), was an automotive engineer. His projects included the BMW 328 sports car, the ex-BMW Bristol straight-six engine, and the BMW New Class sedan.

Career to 1945
Fiedler began his career in engineering at Stoewer and moved to Horch in 1924, where he eventually became chief engineer. He designed 8-cylinder and 12-cylinder cars at Horch. He left in 1932 when Horch became part of Auto Union. He then went to  BMW on the recommendation of his former assistant Rudolf Schleicher, who had joined Horch from BMW in 1927 and returned to BMW in 1931. Fiedler became chief engineer at the age of 32 over former chief engineer Alfred Böning who became head of the automotive drawing office.

In 1933 Fiedler was given the project to design the M78 six-cylinder engine for the BMW 303. The first car that Fiedler was fully responsible for was the BMW 326 saloon that was shown at the International Automobile Ausstellung in Berlin in 1936.

While Schleicher was at Munich on motorcycle development and the competition side of BMW motor car activity, Fiedler was at Eisenach in overall command of the car side of BMW, specialising in chassis, suspension and aerodynamic design and development. His last automotive design from Eisenach was the 3.5-litre 6 cylinder BMW 335 saloon, a fine 90 mph car for the German autobahns. During the war he was occupied with military vehicle design and development and finished up at Munich, so that after the war he was in the American zone. During the war he was a Director of BMW, but left the board in 1945.

In  England
In 1947 Fiedler joined AFN Ltd at the persuasion of H.J. Aldington. Although he was lent to Bristol as a consultant on their Type 400 project, he did most of his work in England at Isleworth, where he was always known as Dr Fiedler, although he did not have that title in Germany. He was very popular with the workforce at AFN, most people describing him as a kindly and charming man, and everyone admired his engineering qualities. He took charge of the development of the post-war Frazer Nash, dealing with chassis, suspension, body design and construction and development of the FNS Bristol engine. On the Isleworth dynamometer he got over 100 bhp from the Bristol engine before the Bristol men did.

Return to Germany and BMW

After three years with AFN Ltd, Fiedler returned to Germany. He returned to BMW as chief engineer in 1952 after working at Opel for a short time. He took over responsibility for the ongoing V8 engine project and was responsible for the BMW 503 and BMW 507. He was chairman of BMW AG from 1955 to 1956 and he finally retired in 1966, after a long and active life devoted to BMW, but he attended the firm each day as a consultant for a further two years and died in 1972.

Notes

References
“From Chain Drive to Turbocharger- The AFN Story”, Denis Jenkinson, 1984.

External links
 BMW Designers  Fritz Fiedler among the BMW automotive designers.

German automobile designers
BMW people
1972 deaths
1899 births
Sehan University. Sehan University is a private university located in Yeongam County, South Jeolla, South Korea.  The current president is Lee Gyeong-sue (이경수), who has led the university since its founding in 1994.

Academics

Six colleges oversee the university's undergraduate offerings:  Teacher Training, Art and Physical Education, Public Health, Engineering, Police and Fire, and Humanities.  There is a general graduate school, offering graduate training in many of these fields, and specialized graduate schools of Industrial Technology, Business Administration, Social Welfare, Public Health, and Education.

History

The school opened in 1994 as Daebul Industrial College (대불공과대학).  It became a university the following year.

Notable people 
Seo In-guk, actor and singer
Yoon Kyun-sang, actor and model

See also
 List of colleges and universities in South Korea
 Education in South Korea

External links
Official school website, in Korean and Chinese

Universities and colleges in South Jeolla Province
1994 establishments in South Korea
Educational institutions established in 1994
Bhabar. Bhabar or Bhabhar is a region south of the Lower Himalayas and the Sivalik Hills in Garhwal and Kumaon, India. The Bhabhar region contains some of the largest cities of Kumaon and Garhwal: Dehradun, Haridwar, Haldwani, Rishikesh, Ramnagar, Tanakpur and Kotdwar. It is the alluvial apron of sediments washed down from the Sivaliks along the northern edge of the Indo-Gangetic Plain.
The Indo-Gangetic Plains are generally thought of as a flat region with no variations, although this isn't true. The plains can be classified into four regions on the basis of relief features. The Bhabar is a belt of 8–16 km lying parellel to the slopes of the Sivaliks, where the river descending from the mountains deposit pebbles. The streams flow through the pebbles the region, hence disappearing from sight. They re-emerge only after some distance south, in the relief feature Terai.

Etymology
The name Bhabar refers to a local tall-growing grass, Eulaliopsis binata, used for the manufacture of paper and rope.

Overview
Bhabar plains are located in Kumaon and Garhwal. Bhabar is the gently-sloping coarse alluvial zone below the Sivalik Hills (outermost foothills of the Himalayas) where streams disappear into permeable sediments. The underground water level is deep in this region, then rises to the surface in the Terai below where coarse alluvium gives way to less permeable silt and clay. The Ganges River lies to the west and Sharda to the east.

Being at the junction of Himalayas and the Indo-Gangetic Plain, Bhabar contains almost all the important trade and commerce hubs of Kumaon, including its largest city Haldwani. Due to the top-soil replenishment every monsoon, It is also a fertile area with large yields per unit area.

History
In 1901 Bhabar was also one of four division of Nainital district. It included 4 towns and 511 villages with a combined population of 93,445 (1901), spread over . It corresponded to the current subdivision of Haldwani. Bhabar lands were used by Gujjar cattle herders of Kumaon and Garhwal. They spend their winters in bhabars.

References

External links
 Eulaliopsis binata at wikispecies

Uttarakhand
Geography of Uttarakhand
Himalayas
Hugo Borchardt. Hugo Borchardt (June 6, 1844 – May 8, 1924) was a German firearms inventor and engineer, born in Magdeburg, Kingdom of Prussia. He is known for his inventions of the Borchardt C-93 pistol and the Sharps-Borchardt Model 1878 rifle.

In 1860 he emigrated to the United States, and by 1872 he was Superintendent of Works for Pioneer Breech-Loading Arms Co. of Trenton, Mass. In 1874 he became a foreman for Singer Sewing Machine Co., then was employed by Colt's Patent Firearms Manufacturing Co., later went to Winchester Repeating Arms Co., and then was Superintendent and Treasurer for the Sharps Rifle Co. on June 1, 1876.

After the dissolution of the Sharps Rifle Co. in 1881, Borchardt returned to Budapest, where he was employed by Fegyver és Gépgyár Részvénytársaság and by 1890 gained the position of works director. While here, he married Aranka Herczog. His return in Europe was interrupted by a short stay (1890–92) in the United States as a consultant to Remington Arms in relation to the development of the Lee rifle for the U.S. Army trials.

By 1893 Borchardt had an association with Ludwig Löwe & Company of Berlin, Germany, a manufacturer of machine tools, to produce the C-93, a semi-automatic pistol that he had invented based upon the Maxim toggle-lock principle. He also developed the 7.65x25mm Borchardt cartridge around which the C-93 was built. Hugo Borchardt had many non-firearms patents: a rock drill, a shirt-neck shaper, gas burners, ball-bearings, a wire-straightener, and various electrical apparatus.

Borchardt died of pneumonia in Berlin-Charlottenburg in 1924.

Firearms Patents
U.S.
 #185,721 26 September 1876
 #206,217 23 July 1878
 #273,448 6 March 1883
 #571,260 1896
 #987,543 21 March 1911

Germany
 #75,837 9 September 1893
 #77,748 18 March 1894
 #91998 10 October 1896
 #227,078 27 February 1909

British
 #18,774 1 November 1893
 #29,622 20 February 1909

See also
List of inventors

References

1844 births
1924 deaths
19th-century American inventors
19th-century German inventors
Prussian emigrants to the United States
Scientists from Magdeburg
Firearm designers
Gunsmiths
People from the Province of Saxony
Deaths from pneumonia in Germany
Tin(IV) chloride. Tin(IV) chloride, also known as tin tetrachloride or stannic chloride, is an inorganic compound of tin and chlorine with the formula SnCl4. It is a colorless hygroscopic liquid, which fumes on contact with air. It is used as a precursor to other tin compounds. It was first discovered by Andreas Libavius (1550–1616) and was known as spiritus fumans libavii.

Preparation
It is prepared from reaction of chlorine gas with tin at :
 + 2 →

Structure
Anhydrous tin(IV) chloride solidifies at −33 °C to give monoclinic crystals with the P21/c space group. It is isostructural with SnBr4. The molecules adopt near-perfect tetrahedral symmetry with average Sn–Cl distances of 227.9(3) pm.

Reactions
Tin(IV) chloride is well known as a Lewis acid. Thus it forms hydrates. The pentahydrate SnCl4·5H2O was formerly known as butter of tin. They all consist of [SnCl4(H2O)2] molecules together with varying amounts of water of crystallization. The additional water molecules link together the molecules of [SnCl4(H2O)2] through hydrogen bonds. Although the pentahydrate is the most common hydrate, lower hydrates have also been characterised.

Aside from water, other Lewis bases form adducts with SnCl4. These include ammonia and organophosphines. The complex [SnCl6]2− is formed with hydrochloric acid making hexachlorostannic acid.

Applications

Precursor to organotin compounds
Anhydrous tin(IV) chloride is a major precursor in organotin chemistry. Upon treatment with Grignard reagents, tin(IV) chloride gives tetraalkyltin compounds:
SnCl4 + 4 RMgCl → SnR4 + 4 MgCl2
Anhydrous tin(IV) chloride reacts with tetraorganotin compounds in redistribution reactions:
SnCl4 + SnR4 → 2 SnCl2R2
These organotin halides are useful precursors to catalysts (e.g., dibutyltin dilaurate) and polymer stabilizers.

Organic synthesis
SnCl4 is used in Friedel–Crafts reactions as a Lewis acid catalyst. For example, the acetylation of thiophene to give 2-acetylthiophene is promoted by tin(IV) chloride. Similarly, tin(IV) chloride is useful for the nitrations.

Safety
Stannic chloride was used as a chemical weapon in World War I, as it formed an irritating (but non-deadly) dense smoke on contact with air. It was supplanted by a mixture of silicon tetrachloride and titanium tetrachloride near the end of the war due to shortages of tin.

References

External links

 International Chemical Safety Card 0953
 

Chlorides
Tin(IV) compounds
Metal halides
EMC AB6. The EMC AB6 was a type of diesel locomotive built exclusively for the Chicago, Rock Island and Pacific Railroad (the "Rock Island Line") by General Motors' Electro-Motive Corporation and delivered in June 1940. Two examples were built, numbered #750 and #751.  They were built for the Rocky Mountain Rocket   passenger train, which travelled as a unified train from Chicago, Illinois, to Limon, Colorado, which then divided. One section went to Colorado Springs, Colorado, and the other to Denver, Colorado. The Rock Island desired a locomotive that could look like an integrated part of the train during the Chicago-Limon portion of the route, and could then be operated independently to take three cars to Colorado Springs.  A regular, cab-equipped A-unit could have been purchased, but that would have ruined the streamlined look of the train, so the RI had EMC build a flat-fronted locomotive based on an E-series E6B (B unit) but with an operating cab, headlight, pilot, and other features to enable it to operate as an independent locomotive.

Since the small three- and four-car trains the units would have to haul independently were very light, the AB6 pair were built with only one 1,000 hp EMC 567 V12 engine, and a baggage compartment where the second engine would have been. Later, with increasing trainloads, the baggage compartment was replaced with a second engine.

In 1965, the units had their steam generators replaced with head-end power and were reassigned to push-pull suburban service in the Chicago area. In this form, they lasted until the mid-1970s and were eventually scrapped.

References 
 
 

A1A-3 locomotives
A1A-A1A locomotives
AB6
Chicago, Rock Island and Pacific Railroad
Passenger locomotives
Diesel–electric locomotives of the United States
Railway locomotives introduced in 1940
Scrapped locomotives
Standard gauge locomotives of the United States
Astrocam. The Astrocam 110 (or Astrocam) is a model rocket with a built-in camera for taking aerial photographs.

The Astrocam was introduced in the 1979 Catalog by its manufacturer Estes and it can be flown with B6-4 and C6-7 model rocket motors (see Model rocket motor classification). The Astrocam was available as kit, or as ready-to-fly model. Both versions use the Estes Delta II launch body.  The camera uses 110 film and is mounted in the nose cone of the rocket with the aperture perpendicular to the main axis of the rocket.  A mirror held in a hood is used like a periscope to enable the camera to look forward.  The camera needs to be manually advanced and "cocked" by pulling a string attached to spring-loaded shutter taut.  When the nose cone is placed on the rocket body, the string is placed between the nose cone and the body so that when the ejection charge of the engine expels the nose cone, the string is released causing one frame of film to be exposed.  Since the rocket is not steerable, the photographer can not determine what the camera will photograph.  

Stock models of the Astrocam were intended to take their photographs after the rocket had begun to descend after reaching apogee.  However, in the Winter 1993 issue of the Estes Educator News magazine, two sets of instructions (Lookdown Astrocam, and the Lookdown Astrocam MK11) were included describing how the camera could be converted to look back down the length of the rocket before reaching apogee, or upon a staging event.  Estes catalogs showed some of the photographs from these modified rockets, but they never produced a version designed to look down, or capable of being switched at will.

A version of the Astrocam called the Astrocam 110 is also available, and the Estes Snapshot is very similar as well.  A modern version of the Astrocam is the Oracle, which shoots video.  A newer video version, called the Astrovision, is also available.

External links 
 Estes company homepage

Model rockets
Aerial photography