omniomni/omni-engineering huggingface dataset:
INAS 343. INAS 343 (Indian Naval Air Squadron 343) is an aviation squadron of the Indian Navy, operating Drishti-10 Starliner UAVs based at Porbandar. It is the second squadron in the navy dedicated to operating UAVs after INAS 342 at Kochi. The squadron was raised in 2011 with 2 IAI Heron and IAI Searcher Mk-II each. The squadron is tasked with patrolling Northern Arabian Sea.

Service history 
The INAS 343 squadron of the Indian Navy lost both of the Heron drones in two separate crashes on 22 March and 14 April 2018, respectively. The first crash occurred minutes after take off at around 10 am IST due to engine failure, however, did not cause any loss of life or property. The drone was operational through manual mode. The second crash occurred due to loss of communication data link with the Ground Control Station (GCS) while the drone was on a routine surveillance mission. The crash occurred  away from INS Sardar Patel at Porbandar at 1 pm IST.

In January and December 2024, the Indian Navy received two units of Drishti-10 Starliners, an Indian variant of Elbit Hermes 900.

On 11 December 2024, the Indian Navy de-inducted 8 Searcher Mk-II UAVs from INAS 342 and INAS 343 after 22 years of service after a ceremony in Kochi.

References

External links
http://www.rediff.com/news/slide-show/slide-show-1-indias-second-uav-squadron-commissioned/20110118.htm

Aircraft squadrons of the Indian Navy
Military units and formations established in 2011
Abramovite. Abramovite is a very rare mineral from the sulfides and sulfosalt categories. It has the chemical formula Pb2SnInBiS7. It occurs as tiny elongated lamellar-shaped crystals, up 1 mm × 0.2 mm in size, and is characterized by its non-commensurate structure.

Etymology and history
Abramovite is named after the mineralogist Dmitry Vadimovich Abramov (born 1963) of the A.E. Fersman Museum, Russia.

It was discovered as fumarole crust on the Kudriavy volcano, Iturup Island, Kuril Islands, Russia.

Formation
Abramovite is a product of precipitation from fumarolic gases () in an active stratovolcano.

Type occurrence
Abramovite comes in small metallic aggregates less than 1 mm across. Abramovite is conserved at A.E. Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow .

The type locality for abramovite is Kudriavy volcano.
Minerals associated with abramovite at its type locality are wurtzite, sylvite, halite, galena, and anhydrite.

Related Minerals
Abramovite is a member of the cylindrite group. Other members of this group are:

Related Minerals (Strunz-mindat Grouping)

See also
 List of minerals

References

Sulfosalt minerals
Triclinic minerals
Minerals in space group 2
INAS 342. INAS 342 is an Indian Naval air squadron, operating unmanned aerial vehicles, based at INS Garuda, Kochi. The squadron was raised in 2006 and operates IAI Heron.

History 
IAI Heron and Searcher Mark II, were acquired from IAI Malat by the Indian Navy in December 2002. The UAVs would serve for the roles of maritime reconnaissance, search & rescue, battle damage assessment and providing OTOHT data.

Earlier in 2002, 16 internal pilots, 11 observers, 8 external pilots, 6 technical officers and 75 technical and non-technical sailors underwent training at IAI Malat. On 31 August 2002, the Intensive Flying and Trials Unit (IFTU) was established at INS Garuda and was tasked with the roles of aircraft acceptance, operator & crew training, evaluation & trials of aircraft and sensors, doctrine formulation, establishing operating & maintenance procedures.

In January 2003, Flight Training commenced and eventually the OEM personnel withdrew as the unit personnel took over. Routine and training flying finally was followed by operational exploitation and the unit started regularly participating in exercises off both coasts, from ships and from various military and non-military airfields.

The OJT cell was appointed to train the technical officers and sailors of following generations of operators and maintainers.

On 6 January 2006, IFTU was formally commissioned as an operational squadron, INAS 342. The first Officer-in-Charge was Commander Rajesh Kawatra. On this day, INAS 342 evolved into a fully functional squadron and pioneered a new era in aviation.

The INAS 342 originally operated six Israeli-built IAI Herons and six Searcher Mark IIs UAVs.

On 11 December 2024, the Indian Navy de-inducted 8 Searcher Mk-II UAVs from INAS 342 and INAS 343 after 22 years of service after a ceremony in Kochi.

References

Aircraft squadrons of the Indian Navy
Military units and formations established in 2006
Mentat Portable Streams. Mentat Portable Streams (MPS) was a platform independent implementation of the UNIX System V STREAMS networking protocol stack, normally sold with the Mentat TCP stack providing TCP/IP support. Portable Streams was used in a number of commercial products, including Apple Computer's Open Transport, AIX, VxWorks, Palm OS's Cobalt, Novell's UnixWare and other systems. Mentat also ported the system to Linux and Windows NT as a standalone product. Portable Streams was written by Mentat, who was purchased by Packeteer in 2004.

References

Internet Protocol based network software
Cornelis Johannes van Doorn. was a Dutch civil engineer and foreign advisor to Meiji period Japan.

Biography
Cornelis Johannes van Doorn was born on 5 January  1837 in Hall (Gelderland), Netherlands, the son of the Reverend PW van Doorn. Van Doorn studied at the Technical School of Dr. Grothe in Utrecht and then at the Royal Academy in Delft. He received his degree in 1860 as a civil engineer. In his early career, he went to Java in the Dutch East Indies, returning home in 1863 to work for the Maatschappij tot Exploitatie van Staatsspoorwegen railway company in North Holland. From March 1865 he worked as an engineer in designing the locks, pumping station and dam on the IJ (Amsterdam).

In 1871 Van Doorn was invited by the Japanese government to act as an expert in hydraulic engineering, arriving in Japan on 24 March 1872, and staying to 22 July 1880. During his time in Japan, he was involved in port development and river improvement projects on the Edo River, Osaka, Yokohama, and Nobiru in Sendai Bay. He designed Japan's first western-style waterway, the Asaka Canal, which reclaimed land for 52 kilometers around Lake Inawashiro in Fukushima Prefecture and made the development of the city of Kōriyama possible. A memorial bronze statue was erected to him beside the sluice gate on the Tone River in 1931. He also designed Japan's first western-style lock, the Ishii lock in Ishinomaki, designated an Important Cultural Property in 2002.

Returning to the Netherlands after eight years, Van Doorn died in Amsterdam in 1906.

In the Netherlands, not much is known about his efforts in Japan. In Japan, on the other hand his name is found in schoolbooks, there are museums dedicated to him and streets and squares named after them. Even Van Doorn's grave in Amsterdam is maintained at the expense of the Japanese city of Kōriyama.

See also
Johannis de Rijke
Foreign government advisors in Meiji Japan

References

1837 births
1906 deaths
Dutch civil engineers
Dutch expatriates in Japan
Foreign advisors to the government in Meiji-era Japan
People from Brummen
Delft University of Technology alumni
Ishii lock. The , begun in 1878 and completed in 1880, is a lock on the canal beside the Kitakami River in Ishinomaki, Miyagi Prefecture, Japan. Designed by Dutch engineer Cornelis Johannes van Doorn, who was a foreign advisor to the Meiji government, it is the earliest example of such a facility in Japan.

The lock measures 50.6 meters in length and 8.6 meters in width, and took an estimated 500,000 red bricks and 2000 labourers to complete. The original gate was made of wood, but was replaced by a  steel gate in 1966.

In 2002, it was designated as an Important Cultural Property of Japan.

See also
Tatsuta polder sluice gates
Foreign government advisors in Meiji Japan
Mechanical Engineering Heritage (Japan)
Important Cultural Properties of Japan
Rangaku

References

External links
Miyagi Prefectural Government official site 

Science and technology in Japan
Canals in Japan
Buildings of the Meiji era
Locks of Japan
Transport infrastructure completed in 1880
Ishinomaki
Important Cultural Properties of Japan
Transport buildings and structures in Miyagi Prefecture
Ise katagami. is the Japanese craft of making paper stencils for dyeing textiles (). It is designated one of the Important Intangible Cultural Properties of Japan. The art is traditionally centered on the city of Suzuka in Mie Prefecture. It is different from , though both are made in Mie Prefecture.

Description
Multiple layers of thin  paper are bonded with a glue extracted from persimmon, which makes a strong flexible brown coloured paper. The designs can be extremely intricate, and consequently fragile. Nowadays the stencils are sometimes sold as artwork, attached to hand fans, or used to decorate screens and doors in Japanese rooms. For kimono printing the stencils are stabilized by attaching them to a fine silk net. In past times, human hair was used instead of silk, but silk is less likely to warp and can be finer.

Technique

Three sheets of  or Japanese paper are pasted together with , tannin-rich persimmon juice. The pattern is excised using a variety of tools known as . Four principal cutting techniques are used:
 Pulling the knife towards the artist, which results in long straight cuts.
 Carving patterns, which allows for figurative designs.
 Cutting circular holes, often in fan-like designs 
 Using shaped punches.

The stencils are then used for resist dyeing. Rice paste is passed through the stencil onto silk. When dyed, the color does not adhere to the areas with rice paste. By multiple alignments of the stencil, large areas can be patterned. This technique was developed in France as silk screen printing. The stencil is not generally used for more than one kimono, though multiple stencils can be cut at the same time.

History

The use of stencils was known by the Nara period, as is evident from objects in the . Later paper stencils developed alongside kimono. The technique is known as  since towns in Ise Province, now Mie Prefecture, were historic centres of the craft. Production is now primarily localised around the town of Suzuka.

Conservation
Former practitioners  (1883–1968),  (1907–1973),  (1894–1976),  (1902–1985),  (1909–1992), and  (1917–2003) were recognized as . The  was founded in 1992.  was designated an  in 1993. The Ise-Katagami Stencil Museum in Suzuka opened in 1997.

Collections 
 The Museum of Applied Arts Vienna (MAK) has more than 8,000 examples of  in its collection, which inspired artists from the Wiener Werkstätte such as Josef Hoffmann, among others. In 2018 more than 600 examples of  with detailed data sheets were published in the online database of the MAK.
 The Museum of Domestic Design and Architecture, Middlesex University has around 400 examples of  in its collection, which are part of the Silver Studio Collection. They were among the visual resources collected by Arthur Silver as inspiration for designs for wallpapers and textiles.

See also

Important Intangible Cultural Properties of Japan
National Treasures of Japan – Dyeing and Weaving

References

External links

 Timeline (in Japanese)

Japanese paper
Japanese dyeing techniques
Textile patterns
Paper art
Important Intangible Cultural Properties of Japan
Culture in Mie Prefecture
Japanese words and phrases
Ken Xie. Ken Xie () is an American billionaire businessman who founded Systems Integration Solutions (SIS), NetScreen, and Fortinet. 

He is CEO of Fortinet, a cybersecurity firm based in Silicon Valley. Xie was previously the CEO of NetScreen, which was acquired by Juniper Networks for $4 billion in 2004. He built the first ASIC-based firewall/VPN appliance in 1996.

Early life 
Xie was born and raised in China. He graduated from Tsinghua University with a B.S. and M.S. in electrical engineering, and from Stanford University with an M.S. in electrical engineering.

Career 
In 1993, Xie founded a network security company, Systems Integration Solutions (SIS). Xie built the first ASIC-based firewall/VPN appliance in 1996, in his garage in Palo Alto, California. That same year he founded NetScreen Technologies, an online security firm, with Yan Ke and Feng Deng. NetScreen Technologies was later acquired by Juniper Networks Inc. for $4 billion.

Fortinet 
In 2000, Xie left NetScreen to create Fortinet with his brother Michael Xie, an electrical engineer. Since then, Ken Xie has served as Fortinet's CEO, while Michael Xie is president and chief technology officer. Xie has stated that he founded Fortinet because he believed that security must be embedded in the end-to-end computing and networking infrastructure. The Xie brothers launched the initial FortiGate products in May 2002. Xie has led Fortinet to acquire security monitoring firm AccelOps, endpoint security firm enSilo, SOAR platform provider CyberSponse, and the IoT-focused security firm Bradford Networks.

In January 2019, Xie was a discussion leader for the Centre for Cybersecurity’s cyber workforce session at Davos’ World Economic Forum (WEF) summit. In February 2020, Ken Xie spoke at the RSA conference in San Francisco about the importance of SD-WAN, edge computing, and automation. Xie is a founding member and a member of the board of directors of the Cyber Threat Alliance.

Personal life 
Xie is married and lives in Los Altos Hills, California. He is the father of Jaime Xie, a fashion influencer and star on the Netflix reality TV series Bling Empire. In September 2020, Xie joined the Forbes 400 list.

Xie was made a member of the National Academy of Engineering in 2013.

Private foundation 
Xie runs a private foundation, along with his brother. Since 2009, Xie has had more than $30 million in income tax deductions by contributing shares of Fortinet to this private foundation. In 2017, the private foundation spent $3 million on a home in Cupertino, California which Xie and his then-girlfriend lived in. In January 2020, the house was transferred from the foundation to a LLC.

References 

1963 births
Living people
Chinese emigrants to the United States
American technology chief executives
American computer businesspeople
Businesspeople in software
Tsinghua University alumni
Members of Committee of 100
Stanford University alumni
Businesspeople from Beijing
American technology company founders
Chinese company founders
Members of the United States National Academy of Engineering
American billionaires
People from Los Altos Hills, California
Queensland B18¼ class locomotive. The Queensland Railways B18¼ class locomotive was a class of 4-6-2 steam locomotives operated by the Queensland Railways.

History
The first batch of 17 B18¼ class locomotive were built by the North Ipswich Railway Workshops in 1926. Per Queensland Railway's classification system they were designated the B18 class, B representing they had three driving axles, and the 18 the cylinder diameter in inches.

Further orders saw the class total 83 by 1947 with some built by Walkers Limited. The latter examples were fitted with modified boilers and improved cabs. The early examples were painted prussian blue with the boilers having a natural finish. The latter examples were painted black with red lining. In 1949 all were repainted green with red lining. From 1951 they began to be relegated following the delivery of the BB18¼ class. The first was withdrawn in March 1967, with the last removed from traffic in 1970.

Preservation
771 has been preserved at the Workshops Rail Museum.

References

External links

Railway locomotives introduced in 1926
B18
Walkers Limited locomotives
4-6-2 locomotives
MATIS Group. AVENTON (formerly known as MATIS Group) was a privately owned international company specialized in technological and management consulting. They were acquired by Alten.

The group positions itself as engineering & advanced technology consulting service provider, product and process development partner for Aeronautics and Space, Automotive, Energies, Railway, Telecom, Healthcare and Information and communications technology industrial sectors.

Core competencies are mechanical, software, hardware, paper bag produce, telecom engineering and support including project management, manufacturing engineering, quality, supply chain.

History
The MATIS Group was founded in France by Maurice Guez in 1994.

Every year since going international in 2005 the MATIS Group expanded its business by about 20% to 30% in average. End of 2012, MATIS Group employed about 1.600 people in total and generated revenue of approximately 101 million EUR.

Locations
MATIS is based in 25 locations including Europe (France, Belgium, Germany, Netherlands, Spain, Switzerland)  where it was born, in south america (Brazil)  and north africa (Morocco).

Subsidiaries

MATIS France
As France is the country of origin of the group, MATIS can look back on a long history there. Up to now France is the most important market for the group, accounting for more than 50% of the employees and about 50% of the generated revenue. The international HQ is located in Paris, national offices are situated in Belfort, Bordeaux, Le Havre, Lille, Lyon, Rennes, Toulouse.

MATIS Hispania
MATIS Hispania operates three locations in Spain: The head bureau in Barcelona and two offices in Pamplona and Madrid, producing a turnover of about 5,5 million EUR with 120 employees.

MATIS Benelux
The head office of MATIS Benelux is located in Brussels. In 2011 a new site was established in Eindhoven. MATIS Benelux is employing some 150 people and earning about 11.5 million EUR.

MATIS do Brasil
The HQ of MATIS do Brasil is situated in Campinas north of São Paulo with new offices to be opened in future.

MATIS Switzerland
Launched in April 2011, MATIS Swiss has opened its first offices in Zurich and Geneva.

MATIS Netherlands
MATIS Netherlands opened its first office in Eindhoven in January 2012. With its major high tech industry, the Eindhoven region is often referred to as the silicon valley of Europe. However, MATIS has been active in the region since 2008.

References

 

Service companies of France
Technology companies of France
Companies based in Paris
Hobie Wildcat. The Hobie Wildcat is a Formula 18 developed by Hobie Cat Europe as a one-design within the Formula 18 rules. The class was recognised by the International Sailing Federation in November 2010. It is designed to replace the Hobie Tiger as a more up to date and competitive design within the Formula 18 fleet.

References

See also
 List of multihulls

Classes of World Sailing
Catamarans
Sailboat type designs by Hobie Cat Europe
Sailboat types built by Hobie Cat Europe
D.R. Campbell. D.R. Campbell was a sternwheel steamboat built in Seattle in 1898 which ran on the Yukon and tributary rivers in Alaska.

Construction
D.R. Campbell was built at the shipyard of Robert Moran, a successful shipbuilder in Seattle, Washington.  Named for David Rae Campbell (1830–1911), a Maine wool manufacturer who financed the Seattle-Yukon Transportation Co.

D.R. Campbell was one of twelve nearly identical sternwheelers built at the same time at the Moran yard.  These vessels were built to take advantage of the huge demand for inland shipping that was caused by the Klondike Gold Rush.  All the vessels were launched the same day, April 23, 1898, everyone with steam up in the boiler.  The vessels were all complete by about May 25, 1898.

Transfer to Alaska
All twelve vessels were assembled at Roche Harbor to clear customs, that being the most northerly customs house from which to begin the transfer north, which they were to make under their own power.  Robert Moran himself was on the lead boat, Pilgrim, which was under the command of Capt. Edward Lennan, a highly skilled Alaska pilot.  Accompanying the flotilla were the steam tugs Richard Holyoke and  Resolute, the steam schooner South Coast, and six supply barges.

The long voyage to the mouth of the Yukon River on the Bering Sea was difficult and one of the vessels (Western Star) was wrecked en route.

Career on the Yukon
D.R. Campbell arrived at Dawson, Yukon, on September 8, 1898, with a 400-ton barge.  The vessel was worked on the Yukon River runs from Dawson to Fairbanks, Alaska, and also from Dawson over the whole course of the Yukon downriver to St. Michael, Alaska.

D.R. Campbell was originally owned by the Seattle-Yukon Transportation Company but was transferred to the Northern Navigation Company in 1901. The vessel was acquired by White Pass in 1914 but was not used under White Pass ownership. White Pass sold the Campbell, and the vessel was abandoned by its new owner at St. Michael Canal, Alaska in 1927.

Notes

References 
 Affleck, Edward L., A Century of Paddlewheelers in the Pacific Northwest, the Yukon, and Alaska, Alexander Nicolls Press, Vancouver, BC 2000 
 Newell, Gordon R., ed., H.W. McCurdy Marine History of the Pacific Northwest,  Superior Publishing Co., Seattle, WA (1966)

1898 ships
Steamboats of the Yukon River
Paddle steamers of British Columbia
Steamboats of Alaska
Ships built in Seattle
Canada Steamship Lines
Phantom OS. Phantom OS is an orthogonally persistent managed code general-purpose operating system. It is based on a concept of persistent virtual memory, and executes bytecode in a virtual machine. It is one of a few OSes not based on the classic concepts of Unix-like systems. Phantom is based on the principle that "Everything is an object", in contrast to the Unix-like approach of "Everything is a file".

Overview
Phantom was founded by  and is being developed mostly by Russian programmers. It is free and open-source software (FOSS) released under a GNU Lesser General Public License (LGPL).

Basics
Managed code – Memory protection on object level, rather than process level; absence of pointer arithmetic in managed code avoids many problems that exist and occur in unmanaged code.

Global address space – Inexpensive inter-process communication (IPC). Single (flat) address space allows transfer of objects from one process (application) to another by transferring links to that object. Security is achieved by the absence of pointer arithmetic and the inability of an application to get linked to an object other than by calling a public method.

Persistence – Application code does not see OS restarts and can live forever—this does not use the concept of a file and any variable or data structure can be stored forever and at the same time be available directly through a pointer. Contrary to hibernation, which is done in other OSs, persistence lies in the very core principles of the Phantom OS core. The implementation creates snapshots continuously and transparently to the applications maintaining consistent internal state without pausing applications.

Compatibility
Two ways to migrate code are offered:
 Converter from Java virtual machine (JVM) bytecode; is supposed to permit the import of bytecode from Java and other programming languages that target the JVM.
 The Portable Operating System Interface (POSIX) subsystem allows porting application code from Unix and Linux, although important features of Phantom OS such as persistence become unavailable.

Status
, the system exists as an alpha version for x86 IA-32 processors. Porting to ARM architecture is underway (currently being tested, not yet ready for use) and porting to MIPS architecture and x86-64 (AMD64) has begun. Kernel operation has been demonstrated at the biggest Russian IT-conferences RIT 2011, ADD 2010, CC 2010, and 2009.

A Genode-based fork has been in development since 2020.

See also

 IBM i
 EROS (microkernel)
 Singularity (operating system)

References

Sources

External links
 
 
 

Hobbyist operating systems
Real-time operating systems
Free software operating systems
Microkernel-based operating systems
Microkernels
Object-oriented operating systems
Russian inventions
Window-based operating systems
X86 operating systems