omniomni/omni-engineering huggingface dataset:
Los Angeles Airways Flight 841. Los Angeles Airways Flight 841 was a Sikorsky S-61 helicopter that crashed at 5:50 p.m. on Wednesday, May 22, 1968, in the city of Paramount, California.  All twenty passengers and three crew members were killed.  The aircraft was destroyed by impact and fire.  The probable cause of the accident was a mechanical failure in the blade rotor system, which then allowed one blade to strike the side of the fuselage.  As a result, the other four blades were  thrown out of balance. All five rotor blades then broke and the rear fuselage and tail separated from the rest of the airframe.  The cause of the mechanical failure is undetermined. At the time, it was the worst helicopter-related accident in U.S. aviation history, not to be surpassed until the 1986 Grand Canyon mid-air collision which killed 25.

Los Angeles Airways (LAA) Flight 841 was a regularly scheduled passenger flight from Disneyland Heliport in Anaheim, California to Los Angeles International Airport. The flight was westbound at 2,000 feet over Paramount, California when air traffic controllers received a distress message from pilots: "L.A., we're crashing, help us." The helicopter crashed onto a dairy farm and burst into flames. N303Y, a Sikorsky S-61L helicopter, serial number 61060, had accumulated 12,096 total flying hours prior to the accident.

Much of the debris was contained in the dairy farm where the helicopter crashed.  The tail rotor was discovered one block east of the crash site in a used truck yard.

Among those killed was a group of nine vacationers from Ohio; a Hunt-Wesson Foods executive; the mayor of Red Bluff, California; and a University of California, Berkeley professor.

See also

 List of accidents and incidents involving commercial aircraft
 Los Angeles Airways Flight 417

References

External links
 NTSB report on Flight 841 - Version at the Embry-Riddle Aeronautical University
 Los Angeles Airways Helicopter at Disneyland
 Readers recall 50 years of Disneyland
 Aviation Safety report

Airliner accidents and incidents in California
1968 in Los Angeles
Los Angeles Airways accidents and incidents
Airliner accidents and incidents caused by mechanical failure
Disasters in Los Angeles
Paramount, California
Aviation accidents and incidents in the United States in 1968
May 1968 in the United States
Accidents and incidents involving the Sikorsky S-61
Kermit Van Every. Kermit Van Every (March 5, 1915 – November 20, 1998) was a noted American aeronautical engineer best known for his work in the area of very high-speed flight. He was a fellow of the American Institute of Aeronautics and Astronautics and had the unusual distinction of receiving the Wright Brothers Medal twice, in 1948 and 1958.

Van Every was a native of San Jose, California. In 1937 he transferred from San Jose State University to Stanford University, where he earned his undergraduate and aeronautical engineering degrees in 1938 and 1939 respectively, and was elected to the honorary science fraternity Sigma Xi.

Van Every worked for Douglas Aircraft Company for 25 years, ultimately serving as Chief Aeronautical Engineer, in which role he won widespread respect for leading the design of high-speed aircraft that set several speed and altitude records, including the Douglas Skyrocket with Ed Heinemann. After leaving Douglas, he became responsible for aircraft design at Northrop and General Dynamics Aircraft Co., and eventually headed up his own aeronautical consulting company in San Diego located near Point Loma.
He died November 20, 1998, in Menlo Park, California.

Selected writings 
 Ed Heinemann, Rosario Rausa, and Kermit Van Every, Aircraft Design, Nautical and Aviation Publishing Co., Baltimore, 1985.

References 

 Obituary,  Palo Alto Online, December 16, 1998.
 Obituary, Stanford Alumni Magazine, March/April 1999.

American aerospace engineers
1915 births
1998 deaths
20th-century American engineers
San Jose State University alumni
Bascom S. Deaver. Bascom Sine Deaver Jr. (born August 16, 1930, in Macon, Georgia) is a retired American physicist known for his research into superconductor applications, and a professor and assistant chairman for undergraduate studies of the physics department at the University of Virginia.

A leading researcher in the field of superconductors, he is noted for his discovery that the magnetic flux threading a superconducting ring is quantized, a foundational discovery that led to the development of superconducting quantum interference devices, superconducting magnetometers, and superconducting tunnel junction diodes for use in microwave receivers. As a professor, Deaver has overseen 26 Ph.D. students, developed two undergraduate concentrations in optics and computational physics, and created a B.A. degree for students  a program designed to "expose students to the intellectual beauty of physics without sophisticated mathematics."

Education and career 
Deaver received his undergraduate B.S. degree from the Georgia Institute of Technology in 1952, and his masters at Washington University in St. Louis in 1954.

Between 1954 and 1957, he was a physicist and commissioned a lieutenant in the United States Air Force at the Air Force Special Weapons Center at Kirtland Air Force Base in New Mexico. Deaver began his career as a professor at the University of Virginia in 1965, having completed in 1962 his PhD at Stanford University, under the supervision of William M. Fairbank, with thesis Experimental evidence for quantized magnetic flux in superconducting cylinders. He attended the Massachusetts Institute of Technology as an Alfred P. Sloan Fellow between 1966 and 1968.

Deaver has received a number of awards at the university, including the Alumni Association's Distinguished Professor Award for teaching in 2004. He is a member of the American Physical Society, the Virginia Academy of Science, the Raven Society, Sigma Xi, Tau Beta Pi, Sigma Pi Sigma, and Omicron Delta Kappa. In 2000 he received the George B. Pegram Award, for "Excellence in the Teaching of Physics in the Southeast", from the Southeastern Section of the American Physical Society.

In 2008 the physics department announced the establishment of the Bascom S. Deaver Scholarship Fund, the first undergraduate scholarship program in physics at UVA, "in recognition of Prof. Deaver's great impact on [the UVA physics] program."

Deaver retired from academia in summer 2010, after 45 years at UVA.

Publications

Patents

External links 

 Deaver's webpage at the University of Virginia

Notes and references 

Georgia Tech alumni
University of Virginia faculty
21st-century American physicists
Washington University in St. Louis physicists
Washington University in St. Louis alumni
1930 births
Living people
Sloan Research Fellows
Zhejiang California International NanoSystems Institute. Zhejiang California International NanoSystems Institute (Traditional Chinese: 浙江加州國際納米研究院, Simplified Chinese: 浙江加州国际纳米研究院; abbr. ZCINI), is an institute affiliated with the Zhejiang University with a research focus on nanoscience and nanotechnology.  It was established in June 2005 and formed from a collaboration between the Zhejiang Provincial Government, Zhejiang University, and the California Nanosystems Institute (CNSI) at UCLA.

References

External links
 Zhejiang California International NanoSystems Institute (Chinese Homepage)
 Zhejiang California International NanoSystems Institute (English Version)
 California NanoSystems Institute (Homepage)

Zhejiang California International NanoSystems Institute
Structured data analysis (systems analysis). Structured data analysis (SDA) is a method for analysing the flow of information within an organization using data flow diagrams. It was originally developed by IBM for systems analysis in electronic data processing, although it has now been adapted for use to describe the flow of information in any kind of project or organization, particularly in the construction industry where the nodes could be departments, contractors, customers, managers, workers etc.

See also
Data modelling
Information management
Structured systems analysis and design method

Further reading
Construction Site Information Needs
 
 

Systems analysis
Project management techniques
Duji Circuit. Duji () was a circuit of the Chinese Táng Empire. It was established by Emperor Xuánzōng and covered today's Luòyáng (then Dōngdū / Henan Prefecture [Hénán Fǔ]) and the area around it. Duji Circuit was succeeded by the Song dynasty's Jingxibei Circuit (Jīngxīběi Dào). It contained three prefectures: Dōngdū (), Luòzhōu (), and Rǔzhōu ().

References

Circuits of the Tang dynasty
Former circuits in Henan
History of Luoyang
8th-century establishments in China
Multiple Kill Vehicle. The Multiple Kill Vehicle (MKV) was a planned U.S. missile defense program whose goal was to design, develop, and deploy multiple small kinetic energy-based warheads that can intercept and destroy multiple ballistic missiles, including possible decoy targets (penetration aids).

The MKV concept provided the capability for more than one kill vehicle to be launched from a single booster. The system included a carrier vehicle with on-board sensors and a number of kill vehicles, each equipped with its own navigation thrusters and weighing around . With multiple kill vehicles on a single target "cloud" the probability for a hit on the actual warhead is enhanced. The capability of the system to intercept multiple independent targets was also planned to be tested.

The MKV mission was to destroy medium-range through intercontinental-range ballistic missiles equipped with multiple warheads or countermeasures by using a single interceptor missile. During an actual hostile ballistic missile attack, the carrier vehicle with its cargo of small kill vehicles would have maneuvered into the path of an enemy missile. Using tracking data from the Ballistic Missile Defense System and its own seeker, the carrier vehicle would have dispensed and guided the kill vehicles to destroy any warheads or countermeasures.

After successful development, MKV was planned to be deployed on board Ground-Based Interceptor (GBI) missiles, Kinetic Energy Interceptor (KEI) and SM-3 Block IIA as well. The MKV technology was being developed on a dual-path basis by Lockheed Martin Space Systems Company, designated MKV-L, and the Raytheon Company (MKV-R). The Missile Defense Agency announced that a test of the MKV-L was conducted 2 December 2008, at the National Hover Test Facility at Edwards Air Force Base, California.

Preliminary indications were that planned test objectives were achieved. Objectives of the test included having the MKV-L hover under its own power and prove its capability to recognize and track a surrogate target in a flight environment. During the test, the MKV-L's propulsion system demonstrated maneuverability while tracking a target. The MKV-L transmitted video and flight telemetry to the ground.

On April 6, 2009, United States Secretary of Defense Robert M. Gates announced that the Pentagon's budget would be reshaped. Under this proposal the MKV program would be terminated.

A similar program was restarted in August 2015, when Raytheon, Boeing, and Lockheed Martin were contracted to  design a Multi-Object Kill Vehicle concept. Raytheon released information that seemed to indicate they were exclusively involved in this work, but it was incorrect.

See also
Kill vehicle

References

External links
 Lockheed Martin MKV Website
 MKV - GlobalSecurity.org

Missile defense
Anti-ballistic missiles of the United States
2008 Zanzibar power blackout. The 2008 Zanzibar Power blackout was an extensive power outage on Zanzibar, Tanzania.

During May and June 2008, Zanzibar suffered a period of almost one month without mains electricity due to a grid failure which left the entire island dependent on alternative methods of electricity generation (mainly diesel generators). The power outage occurred on 21 May 2008 causing a wide-area grid failure across the Tanzanian network followed by a power surge which damaged the submarine interconnector cable that links the Tanzanian mainland and Zanzibar.

The power was eventually restored on 19 June 2008, however, concerns remained about the fragility of the island's transmission infrastructure, its near total dependence on the mainland for its electricity generation, and the capacity and condition of the ageing interconnector that links the mainland electricity network and the island grid.

A similar but longer event happened in Zanzibar in 2009. During this occurrence, the island was without power for more than three months.

Effects
Tourism in Zanzibar, the main income generating activity on the islands, was seriously disrupted by the outage. Other important industries, including the Zanzibar Electricity Corporation and independent small businesses were "severely hit" by the blackout. The island's semi-autonomous government was criticized for its lack of preparedness and dependence on power from mainland Tanzania.

Recurrence in 2009
On 10 December 2009, Zanzibar was again plunged into darkness because of failure of the undersea cable. On 23 December 2009, the Isles Minister of Energy and Construction, Mansour Yussuf Himid, was quoted in the Daily News newspaper published in Dar es Salaam as saying that the blackout would last until the end of February while a critical spare part known as a "splitter" was being sourced from overseas. He was also quoted as saying that the undersea cable was dilapidated and needed to be replaced entirely.

The undersea cable had a projected working life of 25 years when laid in 1976. It had then served for almost 35 years, ten years after it was due to be replaced.

The power in Zanzibar was restored in March, 2010.

References

Zanzibar Power blackout
Zanzibar Power blackout
2008 Power blackout
Zanzibar, 2008
Electric power in Tanzania
Zanzibar power blackout
Zanzibar power blackout
Alenia Aeronautica ITV. 

The Alenia ITV is a technology demonstrator aircraft developed in Italy in the early 21st century. In the spring of 2003, Alenia Aeronautica of Italy unveiled a non-flying ground-test prototype of a half-scale unmanned combat aerial vehicle demonstrator, known as an "Integration Technology Vehicle (ITV)", with a flight prototype to follow. The ITV has a high-mounted wing with a sweep of 35 degrees; a vee tail; a Microturbo TRI60-5 turbojet, with 4.4 kN (450 kgp / 990 lbf) thrust, mounted on the back behind the wing; retractable tricycle landing gear; and metal construction.

As the ITV designation suggests, this machine is strictly for technology development and risk reduction. A "real" Alenia Aeronautica UCAV will be at least twice as big, use a tailless delta configuration, and will be made mostly of composite materials. It will have a modular payload bay for carriage of smart weapons, SAR, or day-night EO sensors. Alenia Spazio, a sister organization in the Finnmeccia Group, will provide a satellite data link. Meteor is also part of the Finnmeccia group and there is likely some collaboration between Meteor and Alenia Aeronautica on UAV design.

Specifications

References
This article contains material that originally came from the web article Unmanned Aerial Vehicles by Greg Goebel, which exists in the Public Domain.

Unmanned aerial vehicles of Italy
ITV
Abandoned civil aircraft projects
V-tail aircraft
High-wing aircraft
Single-engined jet aircraft
Aircraft with retractable tricycle landing gear
Watts Brothers Tool Works. Watts Brothers Tool Works is a tool manufacturer located in Wilmerding, Pennsylvania. They are known for manufacturing drill bits that can drill square holes, including blind holes, which cannot be made with other methods such as broaching. The Harry Watts square drill bit is based on a Reuleaux triangle shape. It is used together with a guide and a particular chuck to make a square hole. Similarly, the company also manufactures drill bits for other angular holes such as pentagons and hexagons.

References

Tool manufacturing companies of the United States
Functional management. Functional management is the most common type of organizational management.  The organization is grouped by areas of speciality within different functional areas (e.g., finance, marketing, and engineering).  Some refer to a functional area as a "silo". Besides the heads of a firm's product and/or geographic units the company's top management team typically consists of several functional heads such as the chief financial officer, the chief operating officer, and the chief strategy officer. Communication generally occurs within a single department.  If information or project work is needed from another department, a request is transmitted up to the department head, who communicates the request to the other department head.  Otherwise, communication stays within the department.  Team members complete project work in addition to normal department work.

The main advantage of this type of organization is that each employee has only one manager, thus simplifying the chain of command.

See also
 A Guide to the Project Management Body of Knowledge (PMBOK Guide), Project Management Institute, 
 Matrix management

References

Management by type
Engineering management
Spaceship Earth (disambiguation). Spaceship Earth is a worldview of concern over limited resource use on Earth. It may also refer to:
 Spaceship Earth (detector), a network of neutron monitors designed to measure the flux of cosmic rays arriving at Earth from different directions
 Spaceship Earth (Epcot), an attraction at the Epcot theme park in Walt Disney World Resort, Florida, USA
 Spaceship Earth (film), a 2020 documentary about Biosphere 2
 Spaceship Earth (sculpture), at Kennesaw State University, Kennesaw, Georgia, USA
 Spaceship Earth, a 1966 book by Barbara Ward
Maximilian Emil Hehl. Maximilian Emil Hehl (Kassel, September 17, 1861 – São Paulo, August 27, 1916) was a German engineer and architect active in Brazil.

Son of Johannes Hehl, director of the Kassel Polytechnic College, and Carolin Wolff Hehl, he studied engineering in the University of Hanover. In 1888 he migrated to Brazil to work with railway construction in Minas Gerais. He moved later to São Paulo where he, in 1898, became professor at the University of São Paulo Polytechnic School.

His major work was the project of the São Paulo Cathedral in neo-Gothic style, which he died before the conclusion of. He also designed Santos Cathedral and the Consolação Church (São Paulo).

References

Archdiocese of São Paulo (portughese)
São Paulo's City Hall (portughese)
NGO Viva o Centro (portughese). 
Family information

1861 births
1916 deaths
German architects
German engineers
Brazilian architects
Brazilian engineers
List of Aare bridges in Bern. This is a list of the 18 bridges spanning the river Aare on the territory of the city of Bern, Switzerland.

With the historical city core situated on a steeply-flanked peninsula formed by the river, the Aare is a defining part of Bern's cityscape and features prominently in the city's 800-year history. Given its topography, the city's development in modern times was dependent on the construction of long high level bridges. Their construction in the 19th and 20th century at times stretched the limits of the possible.

The building of the great bridges was a continuous topic of political controversy in Bern up until World War II. The disputes about the location and even the construction materials of the bridges – stone or iron – reflected the rivalry between the city's conservative and liberal factions.


Bridge locations

Current bridges
In the table, "length" refers to the distance between abutments. The height is measured from the pavement to the mean water level.

Former bridges

Apart from the bridges that were rebuilt in the same spot, as noted above, one bridge no longer exists:

Ferries

Before the building of the major bridges, a number of ferries existed in Bern to carry passengers and cargo across the Aare. Two remain in service:
The Reichenbach ferry () is a cable ferry established in 1743. It links the tip of the Enge peninsula to Reichenbach Castle in Zollikofen.
The Zehndermätteli ferry () is a cable ferry linking the Enge peninsula to Bremgarten.

See also
List of bridges in Switzerland

References
The data in this list are taken from Furrer, p. 154–164, unless otherwise noted.

Bibliography

External links

 

Bern
 
Berne
Aare bridges in Bern
Bridges
bridges
Fredric J. Harris. Fredric Joel Harris (or, as he prefers to spell his name, fred harris) (born April 6, 1940) is an adjunct professor at University of California San Diego. He was a professor of Electrical engineering and was CUBIC signal processing chair at San Diego State University. He is an internationally renowned expert on DSP and Communication Systems. He is also the co-inventor of the Blackman-Harris window. He also has extensively published many technical papers, the most famous being the seminal 1978 paper "On the use of Windows for Harmonic Analysis with the Discrete Fourier Transform." He is also the author of the textbook Multi-rate Signal Processing for Communication Systems and is co-author with Bernard Sklar of the 3-rd edition textbook on Digital Communications. He holds 38 patents on DSP and digital radio receiver technology.

Harris received his B.S. from Brooklyn Polytechnic Institute, his M.S. from San Diego State University, his PhD from Aalborg University, and did PhD course work at the University of California, San Diego. He is an IEEE Fellow and was co-editor-in-chief of the Elsevier journal Digital Signal Processing.

In early 2010 the "Fred Harris Endowed Chair in Digital Signal Processing" fund was established by Eric Johnson and Qualcomm executive Peggy Johnson. The fund is described to encourage and enable future students to pursue careers in the communications specialty of electrical engineering and to honor Fred Harris' legacy. In 2020, the Johnson's funded the fred harris Chair of DSP with a donation of $3.1 million.

References

External links
 : Archived
 fred harris Fund Website: Archived
 Google Scholar

San Diego State University faculty
Living people
Fellows of the IEEE
Aalborg University alumni
Polytechnic Institute of New York University alumni
San Diego State University alumni
Year of birth missing (living people)
Peter Harold Cole. Peter Harold Cole (20 December 1936 – 22 May 2020) was an Australian electronic engineer, notable for pioneering research in the area of RFID technology, having held over 30 patents.

Education
Peter Cole obtained his BSc (1957), BE (1959) and PhD (1964) degrees at the University of Sydney, and then was a postdoc for three years  at the Massachusetts Institute of Technology under a Fulbright scholarship. He obtained his PhD, under Ronald Ernest Aitchison, at the University of Sydney in 1964 with a thesis entitled Energy Exchange and Loss Properties of Ferrites for Parametric Amplifiers. For his BE he won the university medal.

Career

His work was in the areas of radio frequency identification, electromagnetic engineering, microcircuit design, and signal processing. He taught at the University of Adelaide and the University of Sydney, and was a Professor of Radio Frequency Identification Systems in the School of Electrical and Electronic Engineering at The University of Adelaide until his death. He was a founder of the company Integrated Silicon Design Pty. Ltd., a South Australian Company specialising in Radio Frequency Identification Systems. From 1984 to 1999 he was the Chairman of Directors of Integrated Silicon Design Pty. Ltd. In 2002, he was invited to join the Auto-ID Center established by MIT, and then Director of the Auto-ID Laboratory at Adelaide, one of six Auto-ID research laboratories throughout the world supported by EPCglobal.

Books by Peter H. Cole

 Peter H. Cole and Damith C. Ranasinghe, Networked RFID Systems and Lightweight Cryptography: Raising Barriers to Product Counterfeiting, Springer, 2007, .

External links
 
 Cole's Neurotree profile
 Cole's homepage

1936 births
2020 deaths
University of Sydney alumni
Scientists from Adelaide
Australian electrical engineers
Academic staff of the University of Adelaide