omniomni/omni-engineering huggingface dataset:
Vulcanair Canguro. The Vulcanair SF.600 Canguro (en: "Kangaroo") was a feederliner developed in Italy in the late 1970s. Despite a number of attempts to put the aircraft into series production, only a small number were ever built.

Design and development
The Canguro was a high-wing cantilever monoplane of conventional configuration with a fuselage of rectangular cross-section and a high-set tail. The tricycle undercarriage was not retractable, and its main units were carried on sponsons on the fuselage sides. SIAI Marchetti provided funding towards the construction of the prototype, and constructed this aircraft at the former Aviamilano plant. After flight testing proved positive, the type was put on sale, but failed to attract buyers in any number, even when the original piston engines were exchanged for turboprops and retractable undercarriage was offered as an option.

Following their acquisition of SIAI Marchetti, Agusta continued to offer the design, and a contract for joint production was signed with Sammi in South Korea in 1992, but nothing came of this. A similar venture to produce the aircraft in conjunction with PADC in the Philippines proved similarly fruitless. PADC acquired two aircraft, RP-C1298 and RP-3101. In 1997, Vulcanair purchased the design from Finmeccanica (Agusta's parent company), but although a small number of examples were produced, no series production was undertaken. Vulcanair next proceeded to use the Canguro's fuselage to develop the single-engine Vulcanair Mission.

Variants
SF600
1982-variant with two Allison 250-B17C turboprop engines.
SF600A
1989-variant with increased mean take-off weight, two Allison 250-B17F/1 turboprop engines, modification to the wing aerodynamics and modifications to the landing gear support structure.

Specifications (SF.600TP)

References

 
 
 
 

1970s Italian airliners
SIAI Marchetti aircraft
General Avia aircraft
Canguro
Agusta aircraft
Aircraft first flown in 1978
High-wing aircraft
Twin-turboprop tractor aircraft
Aircraft with fixed tricycle landing gear
Enhanced entity–relationship model. The enhanced entity–relationship (EER) model (or extended entity–relationship model) in computer science is a high-level or conceptual data model incorporating extensions to the original entity–relationship (ER) model, used in the design of databases.

It was developed to reflect more precisely the properties and constraints that are found in more complex databases, such as in engineering design and manufacturing (CAD/CAM), telecommunications, complex software systems and geographic information systems (GIS).

Mechanics

The EER model includes all of the concepts introduced by the ER model. Additionally it includes the concepts of a subclass and superclass (Is-a), along with the concepts of specialization and generalization. Furthermore, it introduces the concept of a union type or category, which represents a collection of objects that is the union of objects of different entity types. The EER model also includes EER diagrams that are conceptual models that accurately represent the requirements of complex databases.

Subclass and superclass
Entity type Y is a subtype (subclass) of an entity type X if and only if every Y is necessarily an X. A subclass entity inherits all attributes and relationships of its superclass entity. This property is called the attribute and relationship inheritance. A subclass entity may have its specific attributes and relationships (together with all the attributes and relationships it inherits from the superclass). A common superclass example is a Vehicle superclass along with the subclasses of Car and Truck. There are a number of common attributes between a car and a truck, which would be part of the superclass, while the attributes specific to a car or a truck (such as max payload, truck type...) would make up two subclasses.

Tools

The MySQL Workbench offers creating, editing and exporting EER Models. Exporting to PNG and PDF allows easy sharing for presentations.
Skipper allows users to create, import and export from object–relational mapping (ORM) schema definitions to editable EER models.
SAP PowerDesigner is a complex tool for modelling and transforming different models.

See also
Object–relational database
Slowly changing dimension
Structured type

References

Further reading
Textbooks discussing EER and implementation using purely relational databases:

Booklet discussing EER and implementation using object-oriented and object–relational databases:

Textbook discussing implementation in relational and object–relational databases:

Shorter survey articles:

External links
 - Slides for chapter 8 from Fundamentals of Database Systems by Elmasri and Navathe (Pearson, 2011)
 - Lecture notes from the University of Toronto
 - The ER Conference

Data modeling diagrams
 
Data modeling languages
Snake Bay Airport. Snake Bay Airport  is located at Milikapiti, Northern Territory on the northern coast of Melville Island, Australia.

History

World War II
The Royal Australian Air Force (RAAF) built the airfield as a forward fighter aerodrome, during World War II as part of the proposed strategic amphibious operations by Allied forces against the Tanimbar Islands and Kai Islands. It was proposed to accommodate a RAAF Fighter Wing and a United States Army Air Forces Fighter Group.

Construction was started on 7 July 1944, by No. 9 Mobile Works Unit RAAF with the help of 40 Aboriginal People. The airfield was operational on 30 August 1944. Two side by side runways  long were constructed.

The airfield was never fully utilized as the proposed amphibious operations were canceled and replaced with the New Guinea campaign. The airfield was known as Austin Strip and RAAF Melville Island.

Units based at Austin Strip
No. 6 Communications Unit RAAF
No. 9 Mobile Works Unit RAAF

Airlines and destinations

See also
 List of airports in the Northern Territory

References

External links
 

Airports in the Northern Territory
Former Royal Australian Air Force bases
1944 establishments in Australia
Airports established in 1944
Airfields of the United States Army Air Forces in Australia
World War II airfields in Australia
Tiwi Islands
General Aviation PJ. The General Aviation PJ was a flying boat produced in the United States in the 1930s as a search-and-rescue aircraft for the Coast Guard. Five were built, with one converted to be a PJ-2 with engines in the other direction.
The aircraft would land and take-off on water, but did have some wheels for when it was brought up on land from the water. They were in service until August 1941.

Each of the five aircraft was named for stars. General Aviation was the then-new name for Fokker America, after it was purchased by General Motors; the other designation for this design was the AF-15. It was also called the FLB for Flying Life Boat.

Design 

Originally designated FLB (for "Flying Life Boat"), it was a conventional high-wing cantilever monoplane with a flying boat hull and outrigger pontoons mounted on the wings slightly outboard of mid-span. The twin pusher engines were carried in separate nacelles on pylons above the wings. The hull was a monocoque metal structure, and the wing was a wooden structure skinned with plywood. The basic design was based on that of the Fokker F.11, but substantially enlarged (Fokker's American operation was renamed General Aviation after purchase by General Motors in 1930). While not a true amphibian and able to land on dry land, the PJ was equipped with retractable undercarriage that functioned as its own, self-carrying beaching trolley.

Operational history 

Five examples were operated by the US Coast Guard during the 1930s, named Antares, Altair, Acrux, Acamar, and Arcturus (hull numbers FLB-51 through FLB-55). In 1933, Antares underwent a major refit that included a redesign of her engine nacelles, converting these to tractor configuration.

They were retired in August 1941.

Variants

 PJ-1 - original version with pusher engines (five built)
 PJ-2 - version with tractor engines (one converted)

Specifications (PJ-1)

References
 General Aviation PJ-1/2 
 Bowers, Peter M. United States Navy Aircraft since 1911. Annapolis, Maryland, USA: Naval Institute Press, 1990, p. 495. .

External links

 "Flying Lifeboats." Popular Science, December 1937, pp. 56–57, all photos show PJ-1 except for middle aircraft p. 57 an RD-2.

1930s United States military rescue aircraft
Flying boats
Atlantic Aircraft aircraft
High-wing aircraft
Twin-engined pusher aircraft
Aircraft first flown in 1933
Okenite. Okenite (CaSi2O5·2H2O) is a silicate mineral that is usually associated with zeolites. It most commonly is found as small white "cotton ball" formations within basalt geodes.  These formations are clusters of straight, radiating, fibrous crystals that are both bendable and fragile. It also belongs to the family of the calcium silicate hydrates (C-S-H) commonly found in hardened cement paste. In cement chemist notation (CCN) it is noted as CaO·2SiO2·2H2O and abbreviated as CS2H2.

Discovery and occurrence
It was first described in 1828 for an occurrence at Disko Island, Greenland and named for German naturalist Lorenz Oken (1779–1851).

Minerals associated with okenite include apophyllite, gyrolite, prehnite, chalcedony, goosecreekite and many of the mother zeolites.
Okenite is found in India, mainly within the state of Maharashtra. Other localities include Bulla Island, Azerbaijan; Aranga, New Zealand; Chile; Ireland and Bordo Island in the Faroe Islands.

See also
 List of minerals named after people

References 

Calcium minerals
Dihydrate minerals
Phyllosilicates
Triclinic minerals
Minerals in space group 2
Sparcle. The Sparcle is an experimental 32-bit microprocessor chip developed in 1992 by a consortium of MIT, LSI Corporation, and Sun Microsystems. It was an evolution Sun's SPARC RISC architecture with features geared towards "large-scale multiprocessing". The chip was manufactured by LSI.

Besides these enhancements the Sparcle was otherwise unremarkable, incorporating 200,000 transistors and dissipating two watts. It included no cache and had a clock speed of less than 40 MHz. The new features included:
 Features to tolerate and synchronize memory and communications latencies
 Features supporting fine-grained synchronization
 Features to initiate actions on remote processors and quickly respond to asynchronous events

The Sparcle was used to build the experimental Alewife computer at MIT.

References

External links
 
 

SPARC microprocessors
32-bit microprocessors
Massachusetts Institute of Technology
Sambhram Institute of Technology. Sambhram Institute of Technology was started in 2001 in Bangalore, Karnataka, India. It is a Government Aided institution, affiliated to Visvesvaraya Technological University It is approved by AICTE. It is also accredited by National Board of Accreditation (NBA). The campus is situated in M.S.Palya, Jalahalli East, Bangalore-97, India.

Courses offered
Mechanical Engineering 
Computer Science and Engineering 
Information Science and Engineering 
Electronics and Communication Engineering 
Civil Engineering

Verticals 
Under the direction of the Apex Foundation, the Sambhram Group of Institutions was founded in 1991. Through the Sambhram Education Trust, the organization manages 12 educational institutions in the states of Karnataka and Andhra Pradesh that provide instruction at the secondary, pre-university, and tertiary levels. As part of the Sambhram Group of Institutions, the following schools and colleges are listed:

 Sambhram Institute of Technology
 Sambhram Academy of Management Studies
 Sambhram College of Hotel Management
 Sambhram Institute of Medical Sciences and Research
 KGF College of Dental Sciences and Hospital
 Sambhram College and Institute of Nursing - KGF
 Sambhram Degree College, Chittoor
 Sambhram Pre-University College - KGF
 Sambhram Pre-University College
 Sambhram Junior College Chittoor
 Sambhram School - Chittoor

References

External links

The Computer Science and Engineering Students' forum

Engineering colleges in Bengaluru
Affiliates of Visvesvaraya Technological University
Educational institutions established in 2001
2001 establishments in Karnataka
ICAR Comercial. The ICAR 36 / ICAR Comercial (sic), variously also known as the ICAR M 36, Messerschmitt M 36 or BFW M.36, was a Messerschmitt design built and tested by the Romanian company ICAR in the mid-1930s.  It was a small, single-engine high-wing airliner, the first civil transport aircraft built in Romania.

Design & development
In April 1933, Erhard Milch, previously head of Deutsche Luft Hansa, was appointed Secretary of State for Air. Relations between Milch and Willy Messerschmitt had been bad ever since the cancellation and later re-ordering of the BFW M.20 by Luft Hansa, and the future of orders for BFW looked bleak. That summer, a visit was made to Romania, where an order was placed by Întreprinderea de Construcții Aeronautice Românești (ICAR) for the design of a small airliner, to be built by them in Romania. ICAR designated it the ICAR 36; Messerschmitt, working at BFW referred to it as the M 36.

Description
The ICAR 36 was a high-wing cantilever monoplane of mixed construction, with a closed cockpit, single engine, and fixed landing gear. It had a welded steel tube fuselage, covered with plywood, and tapered single-spar, plywood-covered wings. The crew of two sat in the cockpit, forward of the wing, which was equipped with a radio and could be fitted with twin controls. The cabin for six passengers, with wide rectangular windows and access doors at the rear, was aft and below the cockpit / wings. There were also two baggage compartments.

One aircraft (YR-ACS) was built, later modified with a cabin for five passengers and two luggage compartments. Initially intended to be powered by a licence-built  Gnome & Rhône 7K radial engine, the aircraft was eventually fitted with a  Armstrong Siddeley Serval I ten-cylinder radial engine in a NACA cowling., which was, in turn, replaced with a  Lorraine 7M Mizar 47, driving a three-bladed propeller. The fixed landing gear was supported by long faired vertical struts to the wings, with teardrop spats over the mainwheels and a tailwheel at the end of the fuselage.

A tri-motor development was planned, but not realized.

Operational history
Only one aircraft was built, operated by LARES on several internal routes including the Bucharest to Cernauti route.

Operators

LARES

Specifications (I.C.A.R. 36 Comercial)

See also

References

Further reading

External links

Photos and drawings at Ugolok Neba site

1930s Romanian airliners
ICAR 36
Single-engined tractor aircraft
High-wing aircraft
Aircraft first flown in 1934
Aircraft with fixed conventional landing gear
Philippine Society of Information Technology Educators. The Philippine Society of Information Technology Educators (PSITE) is a professional body of information technology education practitioners in the Philippines. Its members are primarily academics; teachers of computer science, information technology, information and communication technology, engineering, mathematics and other allied fields. Industrial practitioners, however, such as programmers, systems analysts, web developers and others are welcomed as well.

See also 
 Philippine Youth Congress in Information Technology
 University of the Philippines Information Technology Training Center
 Association for Computing Machinery
 IEEE Computer Society
 Information and Communication Technology (education)

External links 
 PSITE National Convention 2009

Professional associations based in the Philippines
Information technology organizations based in Asia
Information technology education
Nakajima Ki-11. The  was an unsuccessful attempt by Nakajima Aircraft Company to meet a 1935 requirement issued by the Japanese government for a modern single-seat monoplane fighter suitable to meet the needs of both the Imperial Japanese Army Air Force and Imperial Japanese Navy Air Service

Design and development
Development of the Ki-11 began as a private venture in 1934, based on a wire-braced low-wing monoplane, inspired by the Boeing P-26 Peashooter. The fuselage wing center section and undercarriage were constructed in duralumin, while the wings and tail were of wood and canvas. The aircraft was powered by a single  Nakajima Kotobuki Ha-1-3 radial engine. Proposed armament consisted of twin 7.7 mm (.303 in) machine guns firing from between the engine cylinders.

The Ki-11 was entered into competition with the Kawasaki Ki-10 biplane design. Although technically more advanced and faster than the Kawasaki design, the Imperial Japanese Army command was split between supporters of "maneuverability" and supporters of "speed". The supporters of the "maneuverability" scheme won, and the Ki-10 became the main army fighter until 1937. Nakajima continued to refine the Ki-11 design, and it re-emerged in the form of the Nakajima Ki-27 "Nate" several years later.

Nakajima later sold the fourth prototype as AN-1 Communications Aircraft to the Asahi Shimbun newspaper, who registered it as J-BBHA and used it as a liaison and courier plane, and for reconnaissance and news-gathering flights.

Variants
 Nakajima Ki-11
 initial prototype (4 built); #4 with enclosed cockpit

Operators
Asahi Shimbun

Specifications (Ki-11)

See also

References

Citations

Bibliography

External links

 Russian site

Low-wing aircraft
Ki-11, Nakajima
1930s Japanese experimental aircraft
Abandoned military aircraft projects of Japan
Ki-011
Single-engined tractor aircraft
Microsoft XP. Microsoft XP may refer to:

Windows XP editions, especially:
Windows XP Home and Professional Editions
Windows XP 64-Bit Edition (For Itanium processors)
Windows XP x64 Edition (For x86-64 processors)
Windows Server 2003, a product from the Windows XP era for server applications
Windows Fundamentals for Legacy PCs, a stripped-down version of Windows XP
Microsoft Office XP, released prior to Windows XP, even though XP is better known to refer to the Windows OS

See also
AMD Athlon XP, a microprocessor marketed for Windows XP to run on, hence the name.
Dynamic video memory technology. Dynamic video memory technology (DVMT) is an Intel technology allowing dynamic allocation of system memory for use as video memory, giving more resources for 2D/3D graphics.

How it works 
The amount of video memory is dependent upon the amount of pre-allocated video memory plus DVMT allocation. DVMT, as its name implies, dynamically allocates system memory for use as video memory to ensure more available resources for 2D/3D graphics performance, e.g. for graphically demanding games.

See also 
 HyperMemory
 TurboCache

References

Intel graphics
Memory management
Vinzant Software. Vinzant Software is a privately held company headquartered in Hobart, Indiana. Established in 1988 by David Vinzant, the company specializes in developing and marketing enterprise job scheduling software for various operating systems including Windows, Unix, Linux, IBM i, and MPE/ix.

History 
Initially founded as Vinzant, Inc. in 1987 by David Vinzant, the company first developed add-on programs for the SKYLINE property management software. In 1988, as client-server computing began to emerge, Vinzant, Inc. collaborated with Microsoft and Novell to create SQLFile, the first front-end interface for the Ashton-Tate/Microsoft SQL Server. This product was subsequently expanded to support DOS, OS/2, and Windows, providing a versatile development tool for accessing data stored in various SQL servers.

In 1990, Vinzant, Inc. released the SQLFile System for DOS, distributed worldwide as part of Novell's Client Server Starter Kit. The company was also selected by Oracle to develop the installation program for the Oracle Server for NetWare. Other notable SQL-based products developed by Vinzant, Inc. include the SQL BASIC Library and the SQL Server Connectivity Pack.

In the mid-1990s, Vinzant shifted its focus to the job scheduling and batch processing market, resulting in the development of the Event Control System (ECS). ECS was designed to provide centralized control for a network of DOS, OS/2, and Windows-based PCs. By 1999, ECS had been redesigned to support Unix and Linux systems, leading to the creation of the Global Event Control Server (Global ECS).

Global ECS 
Global ECS is Vinzant Software's primary product. It is an enterprise-level job scheduling tool. The software is managed from a single point using a Windows or browser-based client, Global ECS offers traditional time-based scheduling as well as event-driven triggers. This means that the user can define jobs to occur based on time, or another event.

Implementations
Job scheduling and batch processing tools like Global ECS help manage data processing systems by automating operations. Common applications include scheduling file transfers, database updates, report generation, compilations, and backups. Global ECS is used by various industries, including financial services, government agencies, healthcare, retail, and manufacturing.

Industry affiliations 
 Apple Developer Connection
 HP Developer and Solution Partner Program
 Intel Software Partner Program
 Microsoft Developer Network
 Novell Developer Network
 Red Hat Developer Program
 SCO Developer Network
 SGI Global Developer Program
 Sun Developer Network

See also
Information Management
Business Process Automation
Job Scheduling

External links
 Vinzantsoftware.com official company site.
 Processor Magazine Job Scheduler Matrix.

References 

Job scheduling
General Aviation GA-43. The General Aviation GA-43 was a single engine low-wing monoplane airliner produced in small numbers in the United States in the mid-1930s, also known as the Pilgrim 150, Fairchild 150, and sometimes but erroneously as the Clark GA-43 for the designer, Virginius E. Clark who was also responsible for the Clark Y airfoil section used.

The prototype was developed and built by Fairchild's American Pilgrim division, but the program was taken over by General Aviation when the firm purchased American Pilgrim shortly before the prototype had flown. Although this first flight took place in 1932, manufacture did not commence until 1934, by which time General Motors had, in turn, gained a controlling interest in North American Aviation and merged it with General Aviation, which they already owned. The result of this was that the GA-43 became the first aircraft produced by North American.

Development

The GA-43 was a conventional low-wing cantilever monoplane of all-metal construction. The prototype had fixed tailwheel landing gear, but the main units of this were later changed to be made retractable, and three of the four production examples also had retractable mainwheels, while the fourth aircraft had twin floats instead. The oval-section fuselage contained a ten-seat passenger cabin, and the cockpit was located atop the fuselage under a separate canopy.

Operators

 Sociedad Colombo Alemana de Transportes Aéreos (SCATA) (1 aircraft on floats)

A single example was used by the Manchukuo National Airways

 Líneas Aéreas Postales Españolas (LAPE) (1 aircraft)

 Swissair (2 aircraft)

Specifications

See also

References

Citations

Bibliography
 
 
 
 

Fairchild aircraft
1930s United States airliners
Single-engined tractor aircraft
Low-wing aircraft
Aircraft first flown in 1932
Aircraft with retractable conventional landing gear
Single-engined piston aircraft