omniomni/omni-engineering huggingface dataset:
Astra-Șeșefschi. The Astra-Șeșefschi was a two-seat Romanian reconnaissance aircraft designed and built in 1923.

Design and development

The Astra Aircraft Factory was an aircraft manufacturer in Romania that operated from 1923 to 1925. The factory was created by the merging of the ro:Marta factory and the ro:Weitzer wagon factory. Astra-Șeșefschi, named after its designer, was a wholly Romanian designed aircraft apart from its engine.

The Șeșefschi was an all-wood machine, like many in the 1920s but also because timber was then an important Romanian export. It was a single bay biplane with two-spar wings mounted with noticeable stagger and braced with a single, broad, forward-leaning interplane strut on each side, assisted by wire cross-bracing. The upper wing was braced over the fuselage on two transverse, inverted-V cabane struts and the lower one was mounted on the lower fuselage longerons. Both wings were near-rectangular in plan apart from blunted tips but they were of different size, the lower smaller in both span and chord by about 15%. Unlike the upper wing, the lower one carried slight dihedral.  Only the upper wing carried ailerons, which were short, reached to the wingtips and broadened as they did so.

The biplane was powered by a  250 hp Marta-Benz engine, a six-cylinder, water-cooled, upright inline built at Astra. It was cooled with a pair of cylindrical Lamblin radiators attached to the undercarriage legs. The tall engine cowling made the nose deep, but as it reduced rearwards into a rounded decking over a rectangular section structure the fuselage became more slender. Its pilot's cockpit was just behind the wing trailing edge, which had a broad cut-out in it to improve his upward and forward field of view. Close behind there was a second cockpit for the observer. The pilot controlled a single, fixed machine gun firing through the propeller disc and the observer had a pair of guns on a flexible mount. He also had a radio and a camera.

At the rear the triangular fin, built of plywood, was an integral part of the fuselage and carried a generous, deep, rounded rudder. The  Șeșefschi's horizontal tail was mounted on top of the fuselage. The angle of incidence of its triangular plan tailplane could be adjusted on the ground and split elevators had a small, central gap to allow rudder movement. It had a simple, tailskid undercarriage with its mainwheels on a single axle, each end elastically sprung from a V-strut mounted on the lower longeron. The tailskid had its own shock absorber.

The exact date of the first flight of the Șeșefschi is not known but it was reported as "just having made satisfactory tests" in September 1923.

Specifications

References

Further reading

1920s Romanian military aircraft
David F. Bacon. David Bacon is an American computer programmer.

Career
Bacon began working as a programmer at age 16 and worked for a startup during his senior year of high school. At Columbia College, Columbia University, he worked first with David E. Shaw on the
NON-VON supercomputer, and then on network algorithms and simulation with Yechiam Yemini, creating the NEST Network Simulator,
which served as the basis for a number of other network simulators including Cornell's REAL and thence LBL's ns simulator.

IBM Research
Bacon spent a large portion of his career at IBM's Thomas J. Watson Research Center, starting as a programmer in 1985 working on the Hermes distributed programming language, and eventually becoming a Principal Research Staff Member.

He took a sabbatical in 2009 as a visiting professor of computer science at Harvard.

Much of his work at IBM focused on garbage collection.
In 2009 he was inducted as an ACM Fellow
"for contributions to real-time systems and to object-oriented language design and implementation".

His work on the Metronome hard real-time tracing garbage collector became the basis for the IBM WebSphere Real Time Java virtual machine, which was used in the software for the Navy's DDG 1000 Destroyer. The original research was subsequently selected for the 2013 Most Influential Paper Award of the Symposium on Principles of Programming Languages.

His work on garbage collecting cyclic structures in reference counted systems has been used in a number of scripting languages,
including PHP.

In 2013 he published the first garbage collector implemented completely in
hardware,
which was selected as an ACM Research Highlight.

In addition to garbage collection, his work has focused on the implementation of concurrent and object-oriented languages. His thesis work on Rapid Type Analysis (RTA)

has been used in many compilers and analysis frameworks to construct call graphs for object-oriented languages, including Soot and Go. In 2004, his work on high-performance locking for Java appeared on the list of the 50 most influential PLDI papers of all time.

Google
In 2014 he joined Google, where he is now a Principal Engineer, working on the Spanner distributed database system. He is responsible for Spanner's Database engine.

References

External links
Author profile on Google scholar
List of publications on DBLP
List of patents

1963 births
Living people
2009 fellows of the Association for Computing Machinery
Hunter College High School alumni
Columbia College (New York) alumni
University of California, Berkeley alumni
American computer scientists
American software engineers
Programming language researchers
Google employees
IBM employees
Scientists from New York (state)
20th-century American scientists
21st-century American scientists
Arden2ByteCode. Arden2ByteCode is a libreware compiler for the Arden Syntax markup language. The compiler translates HL7 International Arden Syntax for Medical Logic Modules (MLMs) to Java Bytecode. The Arden Syntax is a standardized language that can be used to express medical knowledge.
Arden2ByteCode runs on the Java Virtual Machine and can be used on a wide variety of platforms.

Arden2ByteCode is accompanied by Arden4Eclipse a plugin for the eclipse framework that allows easy development of medical logic modules.

History
Arden2ByteCode was developed as a part or the Lower Saxony research network "Design of Environments for Ageing" (GAL). The GAL network was supported by the Lower Saxony Ministry of Science and Culture through the "Niedersächsisches Vorab" grant programme (grant ZN 2701).
Most of the initial development was done in 2011 by Daniel Grunwald. 
After he left the project the work was continued by Hannes Flicka, Mike Klimek  and others.
Initially the compiler supported a subset of the standard version 2.5.

Current status
As of 2016 most of version 2.5 is supported. Still missing are the  statement and the -trigger.

To test the standard compliance a JUnit-based test framework has been developed and can be used to test other compilers as well.

References

External links

 official project website

Compilers
Free and open source compilers
Shay Kutten. Shay Kutten () is an Israeli computer scientist who holds the William M. Davidson Chair in Industrial Engineering and Management at the  Technion – Israel Institute of Technology in Haifa, Israel. He is with the Faculty of Data and Decision Sciences.  His research involves Network Algorithms,  distributed computing, and Network Security.

Education and career
Kutten completed his BA, MSc, and DSc at the Technion – Israel Institute of Technology.  His MSc was performed under the supervision of Imrich Chlamtac and the doctorate under the supervision of Shlomo Moran and Ephraim Korach. After a post-doctorate with IBM T.J. Watson Research Center, he stayed there as a research staff member and as the group leader and manager of the network algorithms group and of the network security group he founded. There, he contributed to various IBM products and received several awards. In 1996 he joined the Technion - IIT. Kutten served as the program committee chair of EATCS DISC 1998, ACM PODC 2004, and SIROCCO 2010.

In 2024, Shay Kutten won the Prize for Innovation in Distributed Computing awarded annually at the SIROCCO conference. The prize was given "for his pioneering advancements in proof labeling schemes and their application to self-stabilizing systems."

References

External links
Home page
Google scholar profile
DBLP

Israeli computer scientists
Academic staff of Technion – Israel Institute of Technology
Living people
Researchers in distributed computing
Year of birth missing (living people)
Flowable. Flowable is an open-source workflow engine written in Java that can execute business processes described in BPMN 2.0. It is an actively maintained fork of Activiti (software).

History 
In October 2016, the lead developers of Activiti (software) left Alfresco (software) and started the Flowable Open Source project based on a fork of Activiti code.

The first version of Flowable was 5.22, based on a fork of Activiti 5.21, but added Transient Variables. The first release of Flowable version 6.0 was based on a fork of Activiti version 6 beta 4. Version 6 of the Flowable engine includes a rewrite of the core process virtual machine.

Components 
The project comprises a set of modules that can operate together:
 BPMN Engine, the core Business Process Model and Notation workflow processor
 CMMN Engine, a Case Management Model and Notation processor
 DMN Engine, an implementation of a subset of Decision Model and Notation based business rules
 Flowable Design, a cloud-based graphical authoring interface for editing BPMN, CMMN, and DMN

Differences between Version 5 and Version 6 
The key changes in Flowable 6 are:
 Abstract persistence layer, enabling use of relational or non-relational data sources
 1-to-1 mapping of BPMN model to executable instruction set
 Simplified execution tree, enabling easier analysis and manipulation of in-flight processes
 Single agenda for process execution plans
 Queue-based job execution
 Ad hoc Sub Processes
 Dynamic process execution

References

Workflow applications
MySensors. MySensors is a free and open source DIY (do-it yourself) software framework for wireless IoT (Internet of Things) devices allowing devices to communicate using radio transmitters. The library was originally developed for the Arduino platform.

The MySensors devices create a virtual radio network of nodes that automatically forms a self healing mesh like structure. Each node can relay messages for other nodes to cover greater distances using simple short range transceivers. Each node can have several sensors or actuators attached and can interact with other nodes in the network.

The radio network can consist of up to 254 nodes where one node can act as a gateway to the internet or a home automation controller. The controller adds functionality to the radio network such as id assignment and time awareness.

Supported hardware platforms 

The framework can natively be run on the following platforms and micro controllers. 
 Linux / Raspberry Pi
 ATMega 328P
 ESP8266
 ESP32  
 ARM Cortex M0 (mainly Atmel SAMD core as used in Arduino Zero)

Communication options 

MySensors supports wireless communication using the following transceivers:
 NRF24L01
 RFM69
 RFM95 (LoRa)
 WiFi (ESP8266 & ESP32)
Wired communication over:
 MQTT 
 Serial USB 
 RS485

Security 

The wireless communication can be signed using truncated HMAC-SHA256 either through hardware with Atmel ATSHA204A or compatible software emulation and optionally encrypted. The implementation is timing neutral with whitened random numbers, attack detection-and-lockout and protects against timing attacks, replay attacks and man in the middle attacks.

Over the air firmware updates 

The firmware of a MySensor node can be updated over the air using a few different bootloader options:
 In place overwriting of flash memory using MySensorsBootloaderRF24. 
 Using external flash with the DualOptiBoot.
 For ESP8266 nodes using  the built in OTA feature.

See also 
 Arduino
 ESP8266

References

External links 
 Official Website
 OpenHardware.io
 
 Russian Community MySensors

Microcontroller software
Home automation
Open hardware electronic devices
Open hardware and software organizations and companies
Tanjung Tualang Tin Dredge No. 5. The Tanjung Tualang Tin Dredge No. 5 (TT5) is a former tin mining dredge in Batu Gajah, Kinta District, Perak, Malaysia.

History
The dredge was built in England, the United Kingdom in 1938 by F.W. Payne & Son, a major dredge engineering company at that time. With head of Engineer Othman/Alan Bruce. It was built for the Southern Malayan Tin Dredging Ltd., a company formed in 1926 which operated 6 dredges in total in Batu Gajah and Tanjung Tualang. TT5 was used for 44 years until 1982 when the Malaysian tin industries declined due to the falling world's tin price, exhausted tin deposits and high operating cost. In 2012, the facility was closed due to water leakage. Starting January 2015, the area is undergoing a MYR8.5 million renovation for 2 years which is carried out by Mentri Besar Incorporated.

Technical details
The dredge weights 4,500 tons. It is supported by a floating dock with 75 meters in length and 35 meters in width and 3 meters in depth.

See also
 Mining in Malaysia

References

External links

 
 YouTube - Tanjung Tualang Tin Dredge Batu Gajah Perak Malaysia

Buildings and structures completed in 1938
1938 establishments in British Malaya
1982 disestablishments in Malaysia
Buildings and structures in Perak
Kinta District
Tin mines in Malaysia
Dredgers
PO KSI. The Professional Association of Designers of Data Processing Systems (), abbreviated PO KSI, (), is a Russian company. Founded as a venture engineering firm in 1990, it performs research and development, producing high tech devices for government and corporate clients.

PO KSI creates microelectronics, digital microcircuitry, electronic optical sensors and scanners, specialty computer systems, digital cartography, photogrammetry, and geographic information systems. The company has completed 26 development projects and four research projects. It has developed and produced over 30 serial devices and systems.

PO KSI registered as a company on 10 April 2000 and employs over 200 people. Most of the firm's employees are graduates of Moscow's National Research University of Electronic Technology.

The Russian Ministry of Defense is the company's primary client, with contracts for 54 million rubles in 2013 and 93 million rubles in 2015. The company has also fulfilled contracts for Russian aerospace company Tupolev for 531 million rubles and the State Scientific Research Testing Institute of Military Medicine for 120.14 mln. Their central office is located at Lazurnaya 3, Andreevka village, District of Solnechnogorsk,  Moscow region, 141551.

In December 2016 PO KSI was sanctioned by the United States for aiding the cyber operations of the Main Intelligence Directorate (GRU) by providing the agency specialized training.

Selected projects
ArVid (1990–1997) — ArVid was a data backup solution using a VHS tape as a storage medium. It was one of the first projects of PO KSI. Over 200,000 devices were produced and sold.
DS-300 — DS-300 is an image scanner for stacked paper originals (A5 to A3 format) capable of scanning 300 images per minute. The scanners were chosen by the Russian Federal State Statistics Service to process the results of the 2002, 2006 and 2010 Russian Censuses. The device is also used by Rosobrnadzor during the exam.
Proscan 60030 — The Proscan 60030 is a precision drum scanner for printed copies and lantern slides of topographic and special-purpose maps and city schemes. It provides input with resolution of up to 600 dpi within the frame, geometrical precision. The scanner was developed in 1999 and 2000. More than 200 devices have been produced since 2000.
SIB — SIB is an optical ballot scanner that uses image contact sensors and has a resolution of 200 dpi. PO KSI developed and produced over 10,000 SIB scanners for the Russian government.
OSDCAM — PO KSI has developed digital aerial cameras since 1999. To comply with the Treaty on Open Skies, Russia's Ministry of Defence contracted with PO KSI to produce surveillance equipment fitted on Tu-154 LK-1 and AN-30B planes.

Directors 
Director - Maksimyak Sergey Petrovich 

Associate Director - Tsoi Galina Yurievna

References

External links
Official website

Companies based in Moscow
Electronics companies established in 1990
Engineering companies of Russia
ENAC Foundation. The ENAC Foundation (French: Fondation de l'École nationale de l'aviation civile) was founded in 2012. The goal of the Foundation, as was put forward by École nationale de l'aviation civile, is to promote scientific and public interest activities in aviation, aerospace and aeronautics.

History
In 2009, the school and its alumni association organized the first edition of the aeronautical book fair. In December 2010, ENAC became one of the ICAO's aviation security training centres.

After the creation of the Foundation in 2012, the first scholarships have been given in 2014, in order to promote international mobility. In 2015, the first research chair in UAV is built, in partnership with Ineo, Cofely and Sagem.

The foundation is supported by GIFAS since 2017.

See also
 Science and technology in France
 Grandes écoles

References

External links
 Official website

Scientific organizations based in France
Foundations based in France
École nationale de l'aviation civile
2012 establishments in France
Zernike Institute for Advanced Materials. The Zernike Institute for Advanced Materials is the department of nanoscience and materials science of the University of Groningen in the Netherlands.

The institute is named after the Dutch Nobel Prize winner Frits Zernike, famous for his development of phase contrast microscopy. The research of the Zernike Institute is focused on curiosity-driven studies of functional materials. The research involve researchers from the fields of physics, chemistry and biology. The aim is to understand how functional materials work at the atomic and molecular level. The Zernike Institute for Advanced Materials is involved in the whole string of research starting from design, through synthesis, device building, characterisation, investigation of the theoretical foundation and feedback to the design process.

The institute is responsible for the education of numerous master and PhD students among others through the top master nanoscience programme.

External links
 Zernike Institute for Advanced Materials
 Top master nanoscience programme

Research institutes in the Netherlands
Nanotechnology institutions
University of Groningen
1953 Avro Lincoln shootdown incident. The 1953 Avro Lincoln shootdown incident was the shooting down of a British Avro Lincoln four-engined bomber which had intruded into East German airspace during a training mission on 12 March 1953. While the aircraft was flying on the Hamburg-Berlin air corridor over East Germany it was shot down by a Soviet Mikoyan-Gurevich MiG-15 fighter.

Incident
The Avro Lincoln was operated by the Central Gunnery School at RAF Leconfield and was on a routine long-distance training flight. The aircraft was intercepted by two Soviet MiG 15 fighters and after it failed to respond to challenges it was shot down by the fighters' 23 mm cannon. The Avro Lincoln crashed east of Boizenburg, on the border of the British and Soviet zones, impacting in a wood between Vierkrug and Horst in the Soviet Zone. It was initially reported that six of the seven crew had been killed and one wounded; the wounded airman was one of three who had bailed out, but later died in hospital. German civilians on the ground reported that two British airmen bailed out from the doomed aircraft, only to be strafed and killed by one of the MiG 15s.

Aftermath
The British government represented by the United Kingdom High Commissioner in Germany protested to the Soviet High Commissioner in Germany against the attack on a British aircraft and death of British servicemen. The Soviet news agency stated that the Lincoln had been flying over the German Democratic Republic and had failed to respond to lawful commands to land at the nearest airfield and had shot at the fighters. The British Foreign Secretary Anthony Eden described it as a "barbaric" act. The British Prime Minister Winston Churchill condemned the attack in a statement to parliament and emphasised the Avro Lincoln was not armed and within the agreed air corridor. British historian Richard Aldrich claims that while the bomber was not directly involved in airborne intelligence gathering,  "its progress was being carefully tracked by a British 'sigint' unit on the ground at RAF Scharfoldendorf in the British Zone of Germany".

References

Aviation accidents and incidents in 1953
20th-century aircraft shootdown incidents
Aviation accidents and incidents in Germany
Cold War military history of the United Kingdom
1953 in East Germany
March 1953 in Europe
Inner German border
Cold War military history of the Soviet Union
Soviet Union–United Kingdom military relations
Anthony Eden
Boris Katorgin. Boris Ivanovich Katorgin (; born 13 October 1934 in Solnechnogorsk) is a Russian scientist who is known for his development of commercially successful rocket engine systems.

Career 

Katorgin graduated from the Bauman Moscow State Technical University in 1958 and became Doctor of Technology in 1983. He joined the NPO Energomash rocket engine manufacturer in 1958 and was its CEO and chief designer between 1991 and 2005. He has been a full member of the Russian Academy of Sciences since 2003.

Katorgin is mainly known for his work on cryogenic liquid-propellant rocket engines. He was the CEO and chief designer of NPO Energomash during the development of the RD-180 engine, which has been exported to the United States for driving Atlas III and Atlas V rockets. He was also involved in the development of the earlier and twice as powerful RD-170 engine. As of 2000, when the first RD-180-powered Atlas III rocket flew, the engine was considered to be 15 to 20 percent more fuel-efficient than competing designs. Katorgin has also contributed to the study of nuclear pulse propulsion, chemical lasers and superconducting systems for power transmission.

In 2012, along with Valery Kostuk and Rodney John Allam, Katorgin received the Global Energy Prize for his research and development relating to high-efficiency and reliable cryogenic-fuel-powered rocket propellant engines.

References 

1934 births
Living people
Bauman Moscow State Technical University alumni
Full Members of the Russian Academy of Sciences
Russian physical chemists
Superconductivity scientists and engineers
Rocket scientists
People from Solnechnogorsky District