omniomni/omni-engineering huggingface dataset:
EMR Telemetry. EMR (Electro-Mechanical Research) Telemetry was a division of Weston Instruments, Inc. based in Sarasota, Florida. EMR started in 1957 and was sold to several different companies throughout its existence. EMR has been owned or operated by companies such as Fairchild Camera and Instrument, Schlumberger LTD, Loral, Lockheed Martin. Currently, the Aviation Recorder Division of L-3 Communications operates the Sarasota facility. EMR products included telemetry processing equipment and space-rated data transmission system, cockpit voice recorders (CVR) and flight data recorders (FDR).

EMR products have been used in many space projects such as Project Mercury, Project Gemini, Ranger 7  and the Pioneer 10 and Pioneer 11 missions. EMR also worked on several classified projects and the X-20 Dyna-Soar prior to the program's cancellation in 1963.

See also 
Project Mercury Summary
Project Gemini - Concept and Design
The Pioneer Jupiter Team
L-3 Communications Aviation Recorders
Google Maps View of the old EMR facility

Notes and references

Telemetry
TLM. TLM full form may refer to: 

 Traditional Latin Mass, also known as Tridentine Mass 

 Taichung Literature Museum, a museum in Taichung, Taiwan
 Télé Lyon Métropole, TV Channel of Lyon's agglomeration
 Temporal light modulation
 The Leprosy Mission
 Thetis Lake Monster
 Transaction-level modeling
 Transmission-line matrix method
 Transmission line measurement
 Transmission line modelling
 The ICAO airline code for Thai Lion Air
 The Indian Railways station code for Tirusulam railway station, Chennai, Tamil Nadu, India
 Teaching/Learning Materials, also known as Instructional materials
 Tech Lead Manager, in technology companies, a "tech lead" (also known as a lead programmer) or team leader who also has some number of direct reports, as a more traditional manager would.
Egli model. The Egli model is a terrain model for radio frequency propagation.  This model, which was first introduced by John Egli in his 1957 paper, was derived from real-world data on UHF and VHF television transmissions in several large cities.  It predicts the total path loss for a point-to-point link. Typically used for outdoor line-of-sight transmission, this model provides the path loss as a single quantity.

Applicable to/under conditions

The Egli model is typically suitable for cellular communication scenarios where one antenna is fixed and another is mobile.  The model is applicable to scenarios where the transmission has to go over an irregular terrain.  However, the model does not take into account travel through some vegetative obstruction, such as trees or shrubbery.

Coverage

Frequency: The model is typically applied to VHF and UHF spectrum transmissions.

Mathematical formulation

The Egli model is formally expressed as:

Where,

 = Receive power [W]

 = Transmit power [W]

 = Absolute gain of the base station antenna.

 = Absolute gain of the mobile station antenna.

 = Height of the base station antenna. [m]

 = Height of the mobile station antenna. [m]

 = Distance from base station antenna. [m]

 = Frequency of transmission. [MHz]

Limitations

This model predicts the path loss as a whole and does not subdivide the loss into free space loss and other losses.

See also

 Longley–Rice model
 ITU terrain model
 International Telecommunication Union

References

Further reading

 Introduction to RF propagation, John S. Seybold, 2005, John Wiley and Sons Inc.

Radio frequency propagation model
Padeye. A padeye is a device often found on boats or ships that a line runs through or provides an attachment point. It is a kind of fairlead and often is bolted or welded to the deck or hull.

It is also used in oil and gas projects to assist in the purpose of lifting.

Detail
It is made of steel plate with radius at one side. Lifting is done with the help of a D-shackle or sling, which fits into the hole of the padeye. There may be one or more circular plates (cheek plates) welded around the hole.

Designing
The following check should be done for the design of padeyes and to keep the stress less than the allowable stresses:

At the hole:
 Bearing stress
 Shear stress
 Tensile stress
 Hertz bearing stress

At the base
 Shear stress
 Tensile stress
 Bending stress
 Combined bending stress and tensile stress
 Von-Mises stress

Analysis on a padeye is commonly performed in accordance with the Air Force Stress Analysis Manual or ASME BTH-1. The methodology in ASME BTH-1 only allows for axially loaded lugs, whereas the methodology in the Air Force Stress Analysis Manual allows for axial loading, transverse loading, or oblique (combined) loading.

Failure modes 
Tests have confirmed that there are four potential failure modes for a lug plate:
 Tension failure at the sides of the hole
 Crushing above the lifting pin followed by tearing tension fracture at the plate edge
 Shear failure in the lug plate as the lifting pin attempts to plow its way towards the edge of the free plate
 Dishing (out-of-plane buckling) failure of relatively thin lug plates that are laterally unrestrained

References

Nautical terminology
Patiala Locomotive Works. Patiala Locomotive Works (PLW) (formerly Diesel Loco Modernization Works (DMW)) is a production unit of the Indian Railways located at Patiala in the Indian state of Punjab. It was set up in the year 1981 as "Diesel Component Works" (DCW) to meet the demand of maintaining the Railway's diesel locomotives. Currently, it has the job of manufacturing new WAP-7 and WAG-9 electric locomotives along with 8-wheeled diesel electric tower cars (8-W DETCs), and upgrading and rehabilitating old locomotives. It also extends maintenance support to the Railways by providing high-precision components and sub-assemblies.

Services
 Manufacturing and supply of high-quality components and sub-assemblies as spares
 Manufacturing of components hitherto imported, leading to import substitution and timely availability
 Remanufacturing of critical assemblies for the unit exchange system of the railway's diesel locomotive maintenance system
 Rebuilding locomotives and power packs, and retrofitting locomotives with systems that incorporate the latest technological developments
 Manufacturing WAP-7 (starting number from 39000 onwards) and WAG-9 (starting number from 41501 onwards) electric locomotives

Products
Key:
  Loco currently in production
 
The designation of the locomotives follows the nomenclature in Indian Railways. Prototypes and individual vehicles are not listed.

Electric locomotives

See also
 Indian Railway Service of Mechanical Engineers
 Chittaranjan Locomotive Works
 Banaras Locomotive Works
 Diesel Locomotive Factory, Marhowrah
 Electric Locomotive Factory, Madhepura
 Integral Coach Factory, Chennai
 Modern Coach Factory, Raebareli
 Rail Coach Factory, Kapurthala
 Rail Wheel Factory, Yelahanka
 Rail Wheel Plant, Bela
 Titagarh Wagons, Titagarh
 List of locomotive builders by countries

References

External links
  Official website

Transport in Patiala
Patiala
Railway workshops in India
Economy of Punjab, India
1981 establishments in Punjab, India
J4. J4/J04, J-4/J-04 or J.4/J.04 may refer to:

In science and academia 

 ATC code J04 Antimycobacterials, a subgroup of the Anatomical Therapeutic Chemical Classification System
 Janko group J4, in mathematics
 S/2003 J 4, a natural satellite of Jupiter
 J04 : acute laryngitis and tracheitis ICD-10 code
 Square cupola, Johnson Solid number 4

In military 

 Mikoyan-Gurevich MiG-17, Chinese designation of this Soviet-made aircraft is J-4
 HMAS J4, an Australian Royal Navy submarine which saw service during World War I
 Junkers J 4, a 1917 German sesquiplane format warplane 
 J4F was the U.S. Navy's designation for the Grumman Widgeon seaplane.

In transportation 
 Airmak J4, an Italian microlight aircraft design
 Auster J-4, a 1946 British single-engined two-seat high-wing touring monoplane
 Morris Commercial J4, van made from 1960 to 1974 under the marques of Morris initially, and later, Austin and BMC
 County Route J4 (California), a road in the United States
 GS&WR Class J4, a Great Southern and Western Railway Irish steam locomotive
 JAC J4, a subcompact car
 Malaysia Federal Route J4, a major road in Johor, Malaysia
 Peterson J-4 Javelin, glider
 Piper J-4, a 1939 trainer aircraft
 Buffalo Airways International Air Transport Association code
 GNR Class J4, a class of British 0-6-0 steam locomotives
 Washington Metropolitan Transit Authority route J4, a bus route that connected College Park, Maryland and Bethesda, Maryland

Other 
 Jaws: The Revenge, also known Jaws 4
 Jarvan IV, a champion in League of Legends* Samsung Galaxy J4; a smartphone made by Samsung

See also
 4J (disambiguation)
J7. J7, J07, J 7 or J-7 may refer to:
 ATC code J07 Vaccines, a subgroup of the Anatomical Therapeutic Chemical Classification System
 Chengdu J-7, a 1966 People's Republic of China-built fighter jet
 County Route J7 (California)
 Demolition Plot J-7, a 1989 extended play from the American indie rock band Pavement
 , an Australian submarine
 , a 1939 British Royal Navy 
 Johnson solid J7, the elongated triangular pyramid
 Junkers J 7, another designation for the German Junkers D.I aircraft
 LNER Class J7, a class of British steam locomotives
 Peugeot J7, a midsize van manufactured between 1965 and 1980
 Kyushu J7, a Japanese Kyushu-Watanabe prototype fighter aircraft
 Malaysia Federal Route J7, a major road in Johor, Malaysia
 Samsung Galaxy J7, an Android mid-range smartphone

and also:
 Centre-Avia IATA code
 ValuJet Airlines IATA code
 A brand of fruit juice produced by Wimm-Bill-Dann Foods in Russia

See also
 7J (disambiguation)
J9. J9, J09, J 9 or J-9 may refer to:

Military 
 Chengdu J-9, a designation assigned to a 1975 Chinese interceptor aircraft that never progressed beyond initial studies
 , a 1940 British Royal Navy 
 Junkers J 9, a factory designation for the 1917 German Junkers D.I fighter aircraft
 Seversky J9, a Swedish WW2 fighter plane'

Transport 
 County Route J9 (California), a main route between the cities of Oakdale, Waterford, and Turlock
 GS&WR Class J9, a Great Southern and Western Railway steam locomotive
 Guinee Airlines, a defunct airline of Guinea
 Jazeera Airways, a Kuwaiti airline
 Malaysia Federal Route J9, a major road in Johor, Malaysia
 Peugeot J9, a fullsize van manufactured from 1981 to 2010

Other uses 
 J9 (album), a 2004 album by Jolin Tsai
 J9 Series, a trilogy of Japanese anime robot series
 Elongated pentagonal pyramid (J9), a Johnson solid
 IBM J9, an implementation of Java
 S/2000 J 9, now called Taygete, a retrograde irregular satellite of Jupiter
 S/2001 J 9, now called Orthosie, a natural satellite of Jupiter
 S/2003 J 9, a retrograde irregular satellite of Jupiter

See also 
 9J (disambiguation)
School Tycoon. School Tycoon is a video game developed by Cat Daddy Games and published by Global Star Software in 2004. The game was designed to appeal to a younger audience as it is easier and less complicated than other business simulation games by removing the spreadsheets and statistics of game management.

Gameplay 
The game features an overhead view of a farm, city lot, or beach-side lot where a school is to be built. The player places buildings and paths to create the layout of the school. The objectives in the game increase in difficulty as the player progress; an easy objective might be to get a certain number of students into school while a more difficult objective would be to earn a certain amount of money within a time limit.   There is also a sandbox game mode without specific objectives, giving the player the freedom to build any type of school they desire.  The game view can zoom in to select individual students, or zoom out to look at the whole school. The game also has speed controls, to accelerate the pace of events, and has variable difficulty settings.
Students in the school can learn ten different subjects. When starting off a school, the player can only afford small classrooms. As money is earned, better and larger classrooms can be built, helping the students to learn more. The player can build academic buildings, sports facilities, entertainment buildings, and an assortment of other structures such as statues, fountains, and food areas.  It is also possible to hire teachers and coaches with a variety of different skills.

References

External links

2004 video games
Business simulation games
Cat Daddy Games games
Global Star Software games
Video games set in schools
Single-player video games
Video games developed in the United States
Windows games
Windows-only games
Bromine monochloride. Bromine monochloride, also called bromine(I) chloride, bromochloride, and bromine chloride, is an interhalogen inorganic compound with chemical formula BrCl. It is a very reactive golden yellow gas with boiling point 5 °C and melting point −66 °C. Its CAS number is 13863-41-7, and its EINECS number is 237-601-4. It is a strong oxidizing agent. Its molecular structure in the gas phase was determined by microwave spectroscopy; the Br-Cl bond has a length of re = 2.1360376(18) Å. Its crystal structure was determined by single crystal X-ray diffraction; the bond length in the solid state is 2.179(2) Å and the shortest intermolecular interaction is r(Cl···Br) = 3.145(2) Å.

Uses
Bromine monochloride is used in analytical chemistry in determining low levels of mercury, to quantitatively oxidize mercury in the sample to Hg(II) state.

A common use of bromine monochloride is as an algaecide, fungicide, and disinfectant of industrial recirculating cooling water systems.

Addition of bromine monochloride is used in some types of Li-SO2 batteries to increase voltage and energy density.

See also
 List of highly toxic gases
 Interhalogen compounds

References

Chlorides
Bromine(I) compounds
Interhalogen compounds
Diatomic molecules
Fungicides
Pesticides
Disinfectants
Oxidizing agents
Gases with color
Weathervane effect. Weathervaning or weathercocking  is a phenomenon experienced by aircraft on the ground and rotorcraft on the ground and when hovering.

Aircraft on the ground have a natural pivoting point on a plane through the main landing gear contact points [disregarding the effects of toe in/toe out of the main gear]. As most of the side area of an aircraft will typically be behind this pivoting point, any crosswind will create a yawing moment tending to turn the nose of the aircraft into the wind.

It is not to be confused with directional stability, as experienced by aircraft in flight.

The term also refers to a similar phenomenon in fin-guided small rockets which, when launched vertically, will tend to turn into a flight path that takes them upwind.

See also
Weathervane

References 

Aircraft operations
Walter Schlage. Walter Reinhold Schlage (1882–1946) was a German-born American engineer and inventor. Known as the Lock Wizard of Thuringia, he is best known for the bored cylindrical lock and the lock company that bears his name, Schlage Lock Co.

Early training and travels 
Early on in his life, his father recognized his aptitude for mechanics and academics and worked on his behalf to have his son admitted to the Carl Zeiss Optical Works in Jena, Germany.  During his apprenticeship, Schlage learned drafting, applied mechanics and engineering.  After four years, he graduated with a special award of merit, as a result of his applied scholarship.

Walter developed a sense of adventure whetted by guests that stayed in his father's hotel, in Thuringia, Germany.  Following his training he left Germany for London where he worked as an instrument maker for Hileger, Ltd.  Lasting a year in England, he emigrated to the United States where he gained employment with the Western Electric Company.

With a continuing desire to see the world however, Schlage signed on as a ship's engineer and sailed for Brazil, the West Indies, and Central America.  Eventually, Schlage worked his way to California and San Francisco, where Western Electric Company again employed him.

Inventions and business history
His first patent was in 1909, inventing a door lock that turned lights on and off. At the time, Schlage was a citizen of Germany residing in Berkeley, California.

In 1919, Schlage patented a door knob which, when pushed up, locked the door. This was succeeded by a door knob incorporating a push-button lock, patented in 1924. By then, Schlage had moved to San Francisco.

Leaving employment with Western Electric Company in 1920, Schlage opened a shop in San Francisco in the present-day financial district. The Schlage Lock Company was incorporated with a starting capital of $30. In the same year, he applied for a patent for a lock that could be drilled into a door with only two holes. This new cylindrical lock had a single plate, serving as both escutcheon and striker plate, wrapping around the door's edge. It was mostly used on interior doors, where it replaced the older Mortise lock.

Schlage's new company grew quickly and into larger facilities throughout the 1920s. The company was manufacturing 20,000 locks per month in 1925. In 1927, Schlage partnered with a San Francisco businessman and financier, Charles H. Kendrick.

In 1940, Schlage was awarded the Modern Pioneer award given to outstanding American inventors.

Schlage died in 1946.

References 

Engineers from Thuringia
1946 deaths
Businesspeople from San Francisco
1882 births
Scientists from Jena
20th-century American businesspeople
Emigrants from the German Empire
Immigrants to the United States
Sensorial transposition. Sensorial transposition is a technique in remote reality where the sensation from one sense is transferred to another, or where feedback is received through a different, unexpected sense. For example, a thermographic camera can visually display temperature, giving us a visual impression of heat, which is not a typical way we experience temperature. This allows us to see temperature variations as colors on a screen, making it easier to understand and interpret thermal data visually.

Essentially, it is about using technology to expand and enhance our sensory experiences in unique ways.

References 

Virtual reality
Echelon Corporation. Echelon Corporation was an American company which designed control networks to connect machines and other electronic devices, for the purposes of sensing, monitoring and control. Echelon is now owned by Adesto Technologies.

History 
Echelon was founded in February 1988 in Palo Alto, California by Clifford "Mike" Markkula Jr. The chief executive was M. Kenneth Oshman.
Echelon's LonWorks platform for control networking was released in 1990 for use in the building, industrial, transportation, and home automation markets. At their initial public offering on March 31, 1998, their shares were listed on the NASDAQ exchange with the symbol ELON.

Started in 2003, Echelon's Networked Energy Services system was an open metering service. Echelon provides the underlying network technology for the world's largest Advanced Metering Infrastructure (AMI) in Italy with over 27 million connected electricity meters.
Based on the experiences with this installation, Echelon developed the NES (Networked Energy Services) System (including smart meters, data concentrators and a head-end data collection system) in October 2014 with about 3.5 million devices installed.

In August 2014, after quarterly revenues dropped from $24.8 million to $15 million, Echelon announced it was leaving the smart-grid business, shifting its entire corporate focus to the Internet of things as a market for its technology.  Echelon committed to only support existing customers, but not grow the grid business, and to potentially seek the sale of its grid business.

Echelon is based in Santa Clara, California, with international offices in China, France, Germany, Italy, Hong Kong, Japan, Korea, The Netherlands, and the United Kingdom.

On June 29, 2018, Adesto Technologies announced its intention to acquire Echelon for $45 million. The acquisition was completed on September 14, 2018.

References

External links
About Echelon Corporation 
LonMark International

Defunct computer companies of the United States
Computer companies established in 1988
1988 establishments in California
Companies formerly listed on the Nasdaq
Companies based in San Jose, California
Companies based in Santa Clara, California
Technology companies based in the San Francisco Bay Area
Power-line communication Internet access
1998 initial public offerings
2018 mergers and acquisitions
Defunct networking companies
Networking hardware companies
Samuel Humphreys. Samuel Humphreys (23 November 1778 – 16 August 1846) was an American naval architect and shipbuilder in the early 19th century. He served the United States Navy as the Chief Constructor for the Navy from 1826 to 1846.

Naval architect 

Samuel Humphreys supervised the construction of the frigate , which was laid down at Philadelphia, Pennsylvania, in 1798, and launched in 1799. He later constructed ships at the Philadelphia Navy Yard, and supervised the construction of the ship-of-the-line , the first ship to be laid down at the yard, in 1815.

In 1824, Humphreys turned down a very lucrative offer from Emperor Alexander I of Russia to create a Russian navy, saying: "I do not know that I possess the merits attributed to me, but, be they great or small, I owe them all to the flag of my country."

In 1826, Humpherys was elected a member of the American Philosophical Society.

Humphreys was Chief Constructor for the Navy from 1826 to 1846.  He designed Americas first first-rate ship-of-the-line, , which was laid down in 1821, but not launched until 1837. He also designed the supply ship , which was laid down in 1835 and launched in 1836.

Around 1827, Humphreys took on John Lenthall as his apprentice to work as his assistant and draftsman, and in 1828 he nominated Lenthall for a position as one of the assistant naval constructors at the Philadelphia Navy Yard. Lenthall would go on to serve as Chief Constructor for the Navy from 1849 to 1853 and as Chief of the Navys Bureau of Construction and Repair from 1853 to 1871.

Family 

Humphreys's father was Joshua Humphreys (1751-1838), the naval architect for the first six frigates of the U.S. Navy.  Samuel, and his wife Letitia, had sons Andrew (1810-1883) and Joshua (1813–1873) who served in the Union Army and Confederate States Navy, respectively, in the American Civil War (1861-1865).  His other children were Jane Murray McCrabb (1813–1897), Mary Yonge (1823–1866), and William Humphreys (1828–1897).

Samuel Humphreys is buried at the Congressional Cemetery in Washington, D.C., with his sons Andrew and Joshua.

See also 
United States naval architect
Naval architecture

Notes

References 

 Chapelle, Howard I. The History of the American Sailing Navy: The Ships and Their Development. New York: W. W. Norton & Company, Inc., 1949. .
 Tucker, Spencer C., ed.  Civil War Naval Encyclopedia.  Santa Barbara, California: ABC-CLIO, 2011, .

External links
 Inventory of the Humphreys Family Papers, 1840-1918, in the Southern Historical Collection, UNC-Chapel Hill
Samuel Humphreys Letterbook, 1824-1845, MS 146 and his Directions for cutting Timber for a Frigate of the first Class, 1835, MS 194 held by Special Collections & Archives, Nimitz Library at the United States Naval Academy

1778 births
1846 deaths
American naval architects
United States Navy civilians
American shipbuilders
Burials at the Congressional Cemetery
American people of Welsh descent