omniomni/omni-engineering huggingface dataset:
Spin-polarized electron energy loss spectroscopy. Spin-polarized electron energy loss spectroscopy or SPEELS is a technique mainly used to measure the dispersion relation of the collective excitations, over the whole Brillouin zone. 

Spin waves are collective perturbations in a magnetic solid. Their properties depend on their wavelength (or wave vector). For long wavelength (short wave vector) spin waves, the resulting spin precession has a very low frequency and the spin waves can be treated classically. Ferromagnetic resonance (FMR) and Brillouin light scattering (BLS) experiments explain the long wavelength spin waves in ultrathin magnetic films and nanostructures. If the wavelength is comparable to the lattice constant, the spin waves are governed by the microscopic exchange coupling and a quantum mechanical description is needed. Therefore, experimental information on these short wavelength (large wave vector) spin waves in ultrathin films is highly desired and may lead to fundamentally new insights into the spin dynamics in reduced dimensions in the future.

SPEELS is one of the few techniques that can be used to measure the dispersion of such short wavelength spin waves in ultrathin films and nanostructures.

The first experiment 

For the first time Kirschner's group in Max Planck institute of Microstructure Physics showed that the signature of the large wave vector spin waves can be detected by spin polarized electron energy loss spectroscopy (SPEELS). Later, with a better momentum resolution, the spin wave dispersion was fully measured in 8 monolayer (ML) fcc cobalt film on Cu(001) and 8 ML hcp cobalt on W(110), respectively. Those spin waves were obtained up to the surface Brillouin zone (SBZ) at the energy range about few hundreds of meV. Another recent example is the investigation of 1 and 2 monolayer iron films grown on W(110) measured at 120 K and 300 K, respectively.

References 

Scattering
Electron spectroscopy
Scientific techniques
60-bit computing. A 60-bit word is typically used for high-precision floating-point calculations; it can also store 10 6-bit characters.

Examples
The only widely-used computers with 60-bit words were produced by Control Data Corporation (CDC), including the CDC 6000 series, the CDC 7600, and the CDC Cyber 70 and 170 series. Though the addressable unit was the 60-bit word, instructions were either 15 or 30 bits.

Early design documents for the IBM 7030 Stretch tentatively specified its word length as 60 bits; the final design used 64.

Emulator
Museum examples of 60-bit CDC machines exist. There also exists an emulator for the series which will simulate the CDC 60-bit machines on commodity hardware and operating systems.

References

Data unit
Control Data Corporation hardware
Canadian Institute of Transportation Engineers. The Canadian Institute of Transportation Engineers (CITE) is composed of more than 1,700 transportation engineers, planners, technologists and students across Canada.  Its purpose and mission is to enable professionals with knowledge and competence in transportation and traffic engineering to contribute individually and collectively towards meeting needs for mobility and safety within Canada.

CITE is an integral part of the Institute of Transportation Engineers (ITE) which consists of transportation professionals in more than 70 countries who are responsible for the safe and efficient movement of people and goods on streets, highways and transit systems.

Canadian Capacity Guide
The Canadian Capacity Guide For Signalized Intersections has been developed as a special project of the CITE.  It provides a methodology that allows Traffic Engineers to plan, design, and evaluate traffic signal controlled roadway intersections.

External links
 

Transportation engineering
Transport associations in Canada
Carnegie Mellon University Masters in Software Engineering. The Master of Software Engineering (MSE) at Carnegie Mellon University is a master's program founded in 1989 focusing on software engineering practice as a joint effort between Carnegie Mellon's School of Computer Science and the Software Engineering Institute. Its studio project was a capstone project that accounts for 40 percent of the course units.

History
Centered around software engineering workshops conducted at the Software Engineering Institute, the degree program's original concepts and curriculum were developed.

Program directors

 1989–1991, Software Engineering Institute
 1992–1999, Mary Shaw
 1996–2001, James E. Tomayko
 1999–2001, James E. Tomayko
 2001–2008, Mel Rosso-Llopart
 2002–2016, David Garlan
 2016–2019, Anthony Lattanze
 2019–present, Travis Breaux

Curriculum

The MSE program began as a joint effort of the School of Computer Science and the Software Engineering Institute. The degree program has a 16-month curriculum. Applicants to the program must have no less than two years of relevant industry experience, with an average of five years of experience.

The MSE curriculum has three basic components:
 Core Courses – emphasis on design, analysis, and the management of large-scale software systems.
 Studio Project – a capstone project that spans the duration of the program for students to implement a software project for an external client. Students work as members of a team under the guidance of faculty advisors (mentors).
 Electives – to study in selected areas.

Notable faculty
 David Garlan
 Mary Shaw
 Nancy Mead

References

External links
Official website

1989 establishments in Pennsylvania
Carnegie Mellon University
Iranian Earthquake Engineering Association. The Iranian Earthquake Engineering Association (IEEA) is an organization established in 1993 under the auspices of the Iranian Scientific Associations commissions. It seeks to promote, expand, and improve Iranian research, training, and education in the fields of earthquake engineering and seismology. The IEEA's membership comprises more than 900 researchers, practicing professionals, educators, government officials, and building code regulators. The IEEA's main activity has concentrated on the training of engineers in the retrofitting of structures, publishing the newsletter, and giving lectures.

See also
List of earthquakes in Iran

References

External links
IEEA website

Research institutes in Iran
Diphenylhexatriene. Diphenylhexatriene is a fluorescent hydrocarbon used in the study of cell membranes.  It is almost non-fluorescent in water, but it exhibits strong fluorescence when it is intercalated into lipid membranes. It incorporates itself into the lipid bilayer and acts like a lipid.

References

External links
 1,6-Diphenylhexatriene, Oregon Medical Laser Center

Polyenes
Fluorescent dyes
Phenyl compounds
SS Empire Breeze. Empire Breeze was a  cargo ship which was built in 1940 for the Ministry of War Transport (MoWT). Shortly after entering service she ran aground but was repaired. Empire Breeze was torpedoed and sunk by  on 25 August 1942.

Description
Empire Breeze was built by J L Thompson & Sons Ltd, Sunderland. She was yard number 603. Launched on 3 October 1940, she was completed in January 1941.

Empire Breeze was  long, with a beam of  and a depth of . She was propelled by a triple expansion steam engine which had cylinders of ,  and  bore by  stroke. The engine was built by George Clarke (1938) Ltd, Sunderland. Empire Breeze was armed with a 4" gun, a 20mm AA gun and two twin machine guns.

Career

Empire Breezes port of registry was Sunderland. She was operated under the management of J & J Denholm Ltd, Sunderland. On 5 February 1941, she ran aground on the Bondicar Rocks, off Amble, Northumberland. She was refloated on 13 March and taken in tow by the tug Bullger, but the tug struck a mine and sank in Druridge Bay. Empire Breeze was anchored off Cresswell and later taken to Sunderland for repairs. She was a member of a number of convoys during the Second World War.

ON 37
Convoy ON 37 departed from Liverpool on 15 November 1941 and dispersed at sea on 24 November.

ON 122
Convoy ON 122 departed from Liverpool on 15 August 1942 and dispersed at sea on 3 September. On 25 August 1942, Empire Breeze was torpedoed by  and .  Two torpedoes struck Empire Breeze, killing one crew member. She began to settle by the stern. The captain of U-438 claimed the kill, but postwar analysis shows that it was U-176 which had fired the fatal shot. The tug  was sent from St. John's, Newfoundland and Labrador and   was detached from the convoy to assist in salvaging Empire Breeze. The surviving crew abandoned ship, but later reboarded her and sent distress signals after repairing the radio set. On 27 August, the Irish merchant ship  rescued the 42 surviving crew and six DEMS gunners. They were landed at Dunmore East, County Waterford on 1 September. Although Empire Breeze was still afloat on 27 August, she could not be found by HMS Frisky and the search was abandoned on 30 August. Those lost on Empire Breeze are commemorated at the Tower Hill Memorial, London.

Official Numbers and Code Letters

Official Numbers were a forerunner to IMO Numbers. Empire Breeze  had the UK Official Number 168662 and used the Code Letters GPFP.

References

1940 ships
Ships built on the River Wear
Empire ships
Ministry of War Transport ships
Steamships of the United Kingdom
Maritime incidents in February 1941
Maritime incidents in August 1942
Ships sunk by German submarines in World War II
Shipwrecks in the Atlantic Ocean
Silas Bent-class survey ship. The Silas Bent class is frequently found applied to four ships though the Naval Vessel Register and some sources officially break them into the subclasses of AGS-26 and AGS-33.  Silas Bent was the first of the first four purpose built ships for U.S. Navy surveys. Previous ships had been modifications of various naval types.

Bent (AGS-26) and Kane (AGS-27)
Two ships were built to essentially the same design at two different yards.

 USNS Silas Bent (T-AGS-26) was laid down at the American Shipbuilding Corp, Cleveland, Ohio, 2 March 1964, launched, 15 May 1964 and delivered to the Navy 23 July 1965.
  was laid down at Christy Corporation, Sturgeon Bay, Wisconsin, 19 December 1964, launched 20 November 1965 and delivered to the Navy, 19 May 1967.

Wilkes (AGS-33) and Wyman (AGS-34)

The AGS-26 and AGS-33 (Wilkes) subclass ships were externally almost identical with slightly different modernized internal configuration reflecting their being laid down (July 1968) three years after Bent's delivery to the Navy 23 July 1965 (See photos at references). The two AGS-33 ships are USNS Wilkes (T-AGS-33) and USNS Wyman (T-AGS-34)

USNS Wilkes (AGS-33) and USNS Wyman (AGS-34) were laid down on the same day, 18 July 1968, at the same shipyard, Defoe Shipbuilding Company, Bay City, Michigan.

 USNS Wilkes was launched on 31 July 1969 & delivered to the Navy on 28 June 1971.
 USNS Wyman was launched on 30 October 1969, delivered to the Navy on 3 November 1971, and scrapped by 1 October 2014.

Configuration and Data Systems
The ships were designed to be capable of surveys supporting hydrographic and bathymetric charting and oceanographic requirements. They differed chiefly in installed equipment and systems, particularly data acquisition systems.

The initial Bent installation was a prototype "Shipboard Survey System" based on a standard Navy AN/UYK computer.

Later Bent was equipped with the Oceanographic Data Acquisition System (ODAS), operational 1971, as were the later oceanographic survey ships Kane and Wilkes. The Wyman replaced USNS Sgt. George D Keathley (T-AGS-35) for geophysical, particularly gravity, and bathymetric surveys.

Wyman was equipped first with the Hydrographic Data Acquisition System (HYDAS) that was replaced in the mid-1970s by a new narrow beam swath system with its own specialized data acquisition system. The swath array, replacing the single beam system, was the Bottom Topography Survey Subsystem (BOTOSS) and the processing system, replacing HYDAS, was the Bathymetric Survey System (BASS).

See also
 The Federal Ocean Program, April 1972
 Silas Bent (TAGS 26) Class
 NavSource: USNS Silas Bent (T-AGS-26) Introduction Brochure
 NavSource: USNS Wyman (T-AGS-34) with images of ship and Welcome Aboard borchure
 Silas Bent (TAGS 26) Class

References

Survey ships of the United States Navy
Oceanographic research ships of the United States Navy
Cold War auxiliary ships of the United States
Auxiliary research ship classes
J. Karl Hedrick. J. Karl Hedrick (August 26, 1944 – February 22, 2017) was an American control theorist and a professor in the Department of Mechanical Engineering at the University of California, Berkeley. He made seminal contributions in nonlinear control and estimation.  Prior to joining the faculty at the University of California, Berkeley he was a professor at the Massachusetts Institute of Technology from 1974 to 1988.  Hedrick received a bachelor's degree in Engineering Mechanics from the University of Michigan (1966) and a M.S. and Ph.D. from Stanford University (1970, 1971).

Hedrick was the head of the Vehicle Dynamics and Control Laboratory at UC Berkeley. He led Partners for Advanced Transit and Highways Research Center (1997–2003), which conducts research in advanced vehicle control systems, advanced traffic management and information systems, and technology leading to an automated highway systems.

He wrote two books and published more than 140 peer-reviewed archival publications, and graduated over 70 Ph.D. students in his career at MIT, Arizona State, and Berkeley.

He was awarded the Rufus Oldenburger Medal from the American Society of Mechanical Engineers in 2006 and was elected to the National Academy of Engineering in 2014.

References

External links
 Personal Website

1944 births
2017 deaths
Control theorists
UC Berkeley College of Engineering faculty
Stanford University alumni
Massachusetts Institute of Technology faculty
University of Michigan College of Engineering alumni
American mechanical engineers
Members of the United States National Academy of Engineering
Fellows of the American Society of Mechanical Engineers
PathGuide Technologies. PathGuide Technologies is a privately held software company based in Washington State that develops, markets and implements real time warehouse management systems (WMS). It’s largely known as the company that Dr. David Allais, an expert and inventor in the fields of bar coding and automatic identification and data capture (AIDC), founded. PathGuide’s main product, Latitude Warehouse Management System, makes use of bar code scanning and RF data communications. The company integrates its products with Enterprise Resource Planning (ERP) and Automatic Identification and Data Capture companies like Microsoft, Oracle and Intermec. PathGuide primarily markets to wholesale/industrial distributors.

History

David Allais founded PathGuide, then Applied Tactical Systems, in 1989 in Lynnwood, Washington. 

In 2000, the company changed names to PathGuide Technologies and moved to Mukilteo, Washington. David Allais’ son, Eric, became CEO in 2006 after serving as the company’s vice president of marketing since 1999.

In 2009, on PathGuide’s 20th anniversary of being in business, the company reported record revenue and cash flow.

Products and services

The company offers three major products, Latitude (WMS), Latitude Manifest & Shipping System (LMS) and Advanced VMI (VMI).

Latitude Warehouse Management System (WMS)

Latitude WMS is a software suite that automates warehousing and distribution to provide real-time online information about inventory. It automates all operations from receiving and order picking to manifesting to truck route/stop management, and integrates with major ERP business systems such as SAP, Microsoft Dynamics, Oracle, JD Edwards, Epicor, Infor, and others. Customers are primarily industrial/wholesale distributors serving manufacturers, contractors and retail stores, Synq Solutions, Becker Electric Supply and E.B. Horsman & Son.

References

Industry Recognition
 – 2009 Supply & Demand Chain Executive Pros to Know
 – 2008 Supply & Demand Chain Executive Pros to Know
 – 2008 Supply & Demand Chain Executive 100
 – 2008 Supply Chain Brain 100 Great Supply Chain Partners

External links
 PathGuide – Official website
 PathGuide customers by region – PathGuide customers

Software companies based in Washington (state)
Software companies established in 1989
Software companies of the United States
Data Applied. Data Applied was a software vendor headquartered in Washington. Founded by a group of former Microsoft employees, the company specialized in data mining, data visualization, and business intelligence environments.

Products 
Data Applied implements a collection of visualization tools and algorithms for data analysis and data mining. The product supports several types of analytical tasks, including visual reporting, tree maps, time series forecasting, correlation analysis, outlier detection, decision trees, association rules, clustering, and self-organizing maps.

References

External links 
 Official Site

Applied data mining
Software companies based in Washington (state)
Defunct software companies of the United States
Dilan Jayawardane. Dilan Jayawardane is a Sri Lankan engineer who co-founded Scoopler based in the United States.

Early life

Jayawardane having received his education from Nalanda College, Colombo, gained admission to enter Moratuwa University and later won a MIT scholarship entering the Massachusetts Institute of Technology in 2002. There he studied engineering and science, graduating with a degree in Electrical Engineering and Computer science in 2006.

Later life

After graduation Jayawardane joined Oracle Corporation in San Francisco Californica as an engineer in Relational database management system (RDMBS) research team. He later quit Oracle and moved to United Kingdom and with one of his University of Oxford graduate colleagues started up their own company called Scoopler Inc, and started developing a search engine. In 2008 he was chosen to participate in a seed-funding program by Y Combinator. In 2009 they invented Scoopler, a search engine that redefined internet searches worldwide. In 2011 Scoopler was acquired by Google and Jayawardane joined Google, working on its Google X project, as a project manager. He was also a key developer for Google's Google+ social network and Space elevator project.

References

Sri Lankan Buddhists
Sinhalese people
Sri Lankan engineers
Alumni of Nalanda College, Colombo
Sri Lankan academics
Sri Lankan businesspeople
Sri Lankan emigrants to the United States
Living people
Year of birth missing (living people)
Chaïm Nissim. Chaïm Nissim (21 November 1949 – 11 April 2017) was an Israeli born militant ecological activist, and a Green Party of Switzerland politician. He was the perpetrator of a rocket attack on the Superphénix nuclear plant, on 18 January 1982.

Biography 
Chaïm Nissim was born in Jerusalem in 1949. He was raised and studied in Israel up to the age of 14, when his father was appointed director of an Israeli bank and his family moved to Geneva, Switzerland. Nissim obtained a degree in electronical and computer engineering at the EPFL in 1973.

Activist background and attack on Superphénix 
For ten years, Nissim, believing that fast breeder reactor "can explode with their fast neutrons", did everything he could to stop the construction of the Superphénix nuclear plant, including training himself for underground guerilla, notably sabotaging electricity pylons with explosives.

On 18 January 1982, Nissim fired five rockets on the Superphénix nuclear plant, then under construction. Five rocket-propelled grenades were launched at the incomplete containment building – two hit and caused damage, missing the reactor's empty core.

The weapon, a RPG-7, was obtained from the Red Army Faction through Carlos the Jackal and the Belgian Communist Combatant Cells.

Nissim states that:

However, the plant manager disagreed with the previous statement, saying that the twenty workers on site were put in danger and that one rocket landed 20 meters away from a worker.

Nissim further stated:

Political career 
In 1985, Chaïm Nissim was elected member of the Grand Council of Geneva, under the aegis of the Green Party of Switzerland. He held the position until 2001.

On 8 May 2003, Nissim went public about the rocket attack of 1982, publishing a book on the subject and his connections to terrorist groups.

Nissim supported the association NOÉ21, a think tank on energy policies.

References 

1949 births
2017 deaths
Eco-terrorism
20th-century Swiss Jews
École Polytechnique Fédérale de Lausanne alumni
20th-century Swiss politicians
21st-century Swiss politicians
Activists from Jerusalem
General Electric H-Series. The General Electric H-Series is a family of turboprop aircraft engines produced by GE BGA Turboprops. The initial H80 is an updated derivative of the Walter M601, while the H75 and H85 are later derivatives.

Development

The H80 was launched in 2009 based on the M601. GE added a new compressor, blisks, blades and new stators to enhance power by 3% and boost efficiency by 10%.
It reaches  (shaft horsepower) from the M601-F's , and improves hot and high performance.

The H80 was certificated by EASA at 13 December 2011, followed by the FAA at 13 March 2012. Its Russian type certificate was received in October 2012, and the engine also approved by Brazilian Civil Aviation agency (ANAC) and the Argentine Administración Nacional de Aviación Civil.

Its Electronic Engine and Propeller Control (EEPC) system received EASA type certification in late 2016.
The Diamond Dart 550 military trainer is due to fly it in early 2018 and it will be certified on the Thrush 510G crop duster in this year.

Design

The two-shaft, reverse flow design is derived from the Walter M601: its core features a two-stage axial and single-stage centrifugal compressor, an annular combustor and a single turbine stage, and its propulsion section is powered by a single-stage turbine driving a two-stage planetary gearbox.
GE redesigned the compressor with 3D aero to improve its pressure ratio and upgraded the hot section and turbine stages with modern metal alloys for higher temperatures with the same durability.

The H75-100 weighs  more than the equivalent PT6 but pioneers single lever electronic propeller and engine control in general aviation, for an initial TBO of 4,000 hr which could be increased with experience.
It promises 10% better fuel burn, 10% longer overhaul and lower maintenance costs than the PT6A-135 for the Nextant G90XT.

Variants

H80 formerly the M601H-80
H75 750 shp or 550 shp derivatives
H75-A 550 shp derivative with aerobatic modifications
H85 850 shp derivative

Applications

 CAIGA Primus 150 (H85)
 Diamond Dart 550 (H75-100)
 Dornier Do-28 G92 (H75-200)
 Let L-410 Turbolet UVP-E20 (H80-200) and L-410NG (H85)
 Nextant G90XT (H75-100)
 Technoavia Rysachok (H80)
 Thrush Model 510 (H80)

Specification (H80)

See also

References

External links
 H-Series | GE Aviation
 EASA type certification data sheet 
 GE Aviation Set to Begin Testing of its New H80 Turboprop Engine
 H80 on LeteckeMotory.cz (cs)

2000s turboprop engines