omniomni/omni-engineering huggingface dataset:
Vigilant Applications. Vigilant Applications Ltd is a United Kingdom based software company, which develops and markets the VigilancePro user behaviour monitoring and management product. The company was founded as a result of the collapse and subsequent administration of Overtis Ltd, the previous owners of VigilancePro.

References

External links 
 Official web site of Vigilant Applications Ltd
 Archive of the web site of Overtis Ltd, as held by the Internet Archive Wayback Machine

Software companies of the United Kingdom
Offshore crane shock absorber. An offshore crane shock absorber is a gas spring with hydraulic damping used to reduce dynamic loads during offshore lifting. The lifting capacity of the offshore crane can be increased significantly during lifting in high sea states if a shock absorber is fitted.

Crane design load
Offshore lifting capacity is governed by classification society rules. The fundamental rule is that the design load should not be exceeded. The design load is given by:

Where: 
 - Crane design load
 - Dynamic coefficient
 - Safe working load
 - Acceleration of gravity 

The classification societies require that  ≥1.3 for offshore cranes. This means that  cannot exceed  even for platform lifts.

Dynamic load

To calculate the dynamic load the classification societies use energy equations. The kinetic energy of the load is expressed as:

Where: 
 - Kinetic energy of the load 
 - Relative velocity between crane hook and load 

Energy absorbed by the crane is given by:

Where: 
 - Spring energy stored in crane structure
 - Stiffness of offshore crane
 - Vertical displacement of crane hook

The spring force is given by:

Combining the two previous equations yields an alternative description of the energy stored in the crane structure:

During an offshore lift the crane does not start to absorb energy from the load before the force in the crane wire exceeds the static weight of the load, which means that we can write the energy absorption of the crane as:

Setting  equal to :

And solving for : 

The dynamic factor will always be larger than 1 because there will always be a velocity difference between the crane hook and the load during offshore lifts. The value of  determines the lifting capacity as a function of   which is dependent on the significant wave height.
If the offshore crane has a shock absorber mounted it will absorb energy according to:

Where: 
 - Energy absorbed by shock absorber
 - Stroke utilization (safety factor), standard value 0.9
 - Efficiency of shock absorber, usually possible to get close to 0.9
 - Stroke length

Adding this to the energy balance yields:

Again solving for ψ:

The plot to the right shows the effect of the shock absorber stroke length.

Estimating relative velocity
The relative velocity is defined by several classification societies as:

Where:

 - Maximum crane lifting velocity at this SWL 
 - Vertical velocity of the deck which the load is placed on
 - Vertical velocity of the crane tip due to wave motion

 has to be gathered from crane user manual or be measured. The deck velocity can be estimated from Table 1.

The crane tip velocity, , can be estimated by Table 2.

These estimations are conservative and for large ships/rigs they may deviate significantly from reality.
A plot of the dynamic factor versus significant wave height for a crane mounted on a semisubmersible and lifting from supply boat is shown above to the right.

References

Springs (mechanical)
Petroleum production
R-25 Vulkan. The R-25 Vulkan () was a surface-to-air missile (SAM) designed by Serbian engineer Obrad Vučurović and built in the Socialist Federal Republic of Yugoslavia (SFRY) in the late 1950s, early 1960s.

Development
The mid-1950s saw the emergence of viable SAMs for the purpose of air defence. Due to their inability to import foreign SAM systems, in 1958 Yugoslavia initiated a program to develop an indigenous missile at the Belgrade Military Technical Institute. Designated the R-25 Vulkan (Volcano), this completely original Yugoslavian design brought together a team of experts led by engineer Obrad Vučurović to design the missile, with the prototypes being made in the SOKO aircraft factory in Mostar.

Two versions of the missile were developed: one that had a booster-rocket engine with seven rockets and a second one with four rockets. Although, initial prototypes used a liquid fuel rocket engine developed for a rocket-powered torpedo, later operational production missiles would use a solid-fueled engine with twice the thrust. The development of the launcher and radar system was inspired by the Japanese Kappa meteorological sounding rocket imported into Yugoslavia. The target detection and information collection system was supplied by Yugoslav-made OAR M-61 “Fruška Gora” S-Band surveillance and acquisition radar, and in-course guidance was supplied by a British No. 3 Mk. 7 aiming radar. For operational use, there existed the possibility of using more sophisticated radar equipment, and for terminal guidance the missile would switch to independent homing by infrared sensors in its nose cone. The advanced guidance system of the R-25 was automatic after launch with no further operator input needed.

Use
The first launch of the missile was conducted in November 1962, revealing problems with the liquid-fueled sustainer rocket motor. Concurrently, with the R-25 testing in 1962 the SFRY acquired S-75 Dvina (Russian: С-75; NATO reporting name: SA-2 Guideline), missile systems from the Soviet Union. As such, by the end of 1964 the decision was made to abandon the Vukan project that produced a total of twelve missiles. The knowledge and experience gained during this project were later incorporated into other projects for production of other armaments for the Yugoslav People's Army (JNA).

Survivors
A single R-25 Vulkan missile is preserved at the Museum of Aviation Museum in Belgrade; intended for in-flight testing, the warhead has been replaced by measuring and telemetry equipment.

External links
 Seven-boostered version images

References

Surface-to-air missiles of the Cold War
Weapons of Yugoslavia
Japan–Serbia relations
Karl Wiegers. Karl E. Wiegers (born 1953) is an American software engineer, consultant, and trainer in the areas of software development, management, and process improvement. He is the author of numerous books and articles mainly focused on software requirements, project management, process improvement, quality, design, and consulting. He is also the author of a forensic mystery novel titled The Reconstruction and a memoir of life lessons titled Pearls from Sand: How Small Encounters Lead to Powerful Lessons.

Biography 
Wiegers received a B.S. degree in chemistry from Boise State College (1973), and M.S. (1975) and Ph.D. (1977) degrees in organic chemistry from the University of Illinois. Wiegers spent 18 years, from 1979 until 1998, at Eastman Kodak Company as a photographic research scientist, software developer, software manager, and process and quality improvement leader.

In 1997, Wiegers started his own software process consulting and training company, Process Impact, which focuses on practical software process improvement.

See also 
 Software Requirements

Publications
 2022. Software Development Pearls: Lessons from Fifty Years of Software Experience. Addison-Wesley. 
2021. The Thoughtless Design of Everyday Things. J. Ross Publishing. 
 2019. Successful Business Analysis Consulting: Strategies and Tips for Going It Alone. J. Ross Publishing. 
 2017. The Reconstruction. Agent Q Bookworks. 
 2013. Software Requirements, 3rd Edition (with Joy Beatty). Microsoft Press. 
 2011. Pearls from Sand: How Small Encounters Lead to Powerful Lessons. Morgan James Publishing. 
 2007. Practical Project Initiation: A Handbook with Tools. Microsoft Press. 
 2006. More About Software Requirements: Thorny Issues and Practical Advice. Microsoft Press. 
 2003. Software Requirements, 2nd Edition. Microsoft Press. 
 2002. Peer Reviews in Software: A Practical Guide. Addison-Wesley. 
 1999. Software Requirements, 1st Edition. Microsoft Press. 
 1996. Creating a Software Engineering Culture. Dorset House Publishing.

References

External links
 Karl Wiegers' official home page

Living people
American software engineers
1953 births
Steve Mogford. Steven Lewis Mogford (born 27 June 1956) is a British businessman. From 2011 to  2023, he was the chief executive (CEO) of United Utilities, the UK's largest listed water company.

Early life
Mogford was educated at Barking Abbey Grammar School, Essex and Queen Elizabeth College, London, where he obtained a First Class degree in astrophysics, Maths and Physics.

Career
Mogford began his career in 1977 as a supply engineer with British Aerospace Military Aircraft. He remained with British Aerospace until 2007 when he was Chief Operating Officer for Programmes at BAE Systems plc.

In May 2007 he joined Finmeccanica's SELEX Galileo as Chief Executive.

Mogford was the chief executive of United Utilities Group plc since March 2011, replacing Philip Nevill Green. He was a non-executive director with Carillion until September 2015.

Personal life
Steve Mogford lives in Chorley in Lancashire.

References

1956 births
Living people
British corporate directors
British manufacturing chief executives
British chief operating officers
People educated at Barking Abbey Grammar School
Rubik's Slide. Rubik's Slide electronic puzzle game is a Rubik's-branded combination puzzle produced by TechnoSource in 2010. Players must manipulate the circuit to re-create a specified pattern, with 10,000 puzzles built into the device.

Description

The puzzle is based around a 3x3 grid of translucent panels, each panel being illuminated from below with red and blue LEDs. The bank of panels is mounted on a central spring-loaded pivot that can both slide a short distance in each of the four cardinal directions, as well as rotate or yaw slightly around the pivot. Each Slide and Twist maneuver triggers a change in the game's state.

The CPU selects a random pattern of lights as the goal state, then it selects another random pattern of lights as the starting state. The latter pattern visibly illuminates the panels. The goal pattern can be viewed at will by holding a button on the side of the device. Reaching the goal states scores a point, and the CPU generates a new puzzle.

A Slide maneuver will shift all rows or columns one space in the direction of the push. Rows or columns that are shifted off the visible play area "wrap around" to the opposite side. A Twist maneuver's effect varies based on the difficulty setting.

The game has three difficulty settings:

Easy Difficulty

 Lights can be in one of two states: on or off.
Lights that are on are all blue or all red i.e. only one colour is used in each puzzle.
 Twists shift the lights 90 degrees clockwise or counterclockwise, akin to the outcome of twisting one face of a traditional Rubik's Cube.

Medium Difficulty

 Lights can be in one of two states: on or off.
Lights that are on are all blue or all red i.e. only one colour is used in each puzzle.
 Twists shift the lights 45 degrees clockwise or counterclockwise. The top left light moves to the top center position, the top center light moves to the top right position, the top right light moves to the right side position, and so on.

Hard Difficulty

 Lights can be in one of three states: off, red, or blue.
 Twists shift the lights 45 degrees clockwise or counterclockwise, as in medium difficulty.

Criticism and reviews
Gizmodo praised the device for having a pleasing tactile quality and encouraging repeated play. Tech Crunch suggested it was fun and addictive.

See also 
 Sliding puzzle

References 

Combination puzzles
Electron, Washington. Electron is an unincorporated community in Pierce County in the state of Washington, US.

Electron sits along the Puyallup River just northeast of Lake Kapowsin and is the site of the Electron Hydroelectric Project, a power plant operated by Puget Power. Above the plant, 10.1 miles upriver, is the Electron Diversionary Dam, which runs water to the power plant via a wooden flume. The dam and power plant project was constructed in 1903-04 and began operation on April 12, 1904. Electron was the site of a CCC camp in the 1930s. A mudslide destroyed the original powerhouse in 1936; rebuilding was partially completed in 1937 and fully rehabilitated in 1941. There is a small town park in Electron.

References

Census-designated places in Pierce County, Washington
Census-designated places in Washington (state)
Kandaleru Dam. Kandeleru Dam is an irrigation project built on the Kandaleru River in Rapur Mandal, Nellore district in the Indian state of  Andhra Pradesh. The project is part of the Telugu Ganga project that supplies drinking water to Chennai city from the Srisailam reservoir on Krishna River. Kandaleru reservoir is mainly fed by a link canal from Somasila Dam. The Telugu Ganga project provides irrigation. It is nearly 57 Kilometers from the District Head Quarters.

Design 
It is an earth dam about 12 km long. Gross storage capacity is 72 billion cubic feet. The dam includes a head regulator, spillway and a sundial. The lead engineer was Shri Gudimella Raghupathi who designed and built the sundial in the dam.

See also
 Nagarjuna Sagar tail pond

References

Reservoirs in Andhra Pradesh
Dams in Andhra Pradesh
Nellore
Buildings and structures in Nellore district
Year of establishment missing
Volvo City Safety. City Safety is an auto brake technology developed by Volvo Cars, designed to reduce or avoid traffic accidents. It comes in two generations, with the first operating at speeds up to 30 km/h (19 mph) and the second, functioning at speeds up to 50 km/h (31 mph).  

The system uses a lidar laser sensor, to monitor the area in front of the vehicle, activating the brakes and disengaging the throttle if a potential collision is detected and the driver does not respond. At relative speeds of 15 km/h (9.3 mph) or less, the technology may prevent a collision entirely, and at speeds up to about 30 km/h (19 mph), it can significantly reduce the impact of a collision. These specifications primarily apply to the first generation of the technology.

The auto brake system features several operational characteristics.:

 Emergency Braking Alert: Rapid flashing of brake lights during emergency braking warns drivers behind about a sudden stop.
 Post-Stop Brake Release: The brakes automatically release about 2 seconds after halting, requiring the driver to manually maintain the vehicle's stationary position.
 Adverse Weather Performance: The system's effectiveness can be reduced in heavy rain, fog, or snow, although it functions consistently in various lighting conditions.

References

External links
"Safety > Preventing accidents > Our preventive safety systems > City Safety" 
"S60 MY 13 HIGHLIGHTS > SAFETY AND SECURITY LEADERSHIP > PREVENTIVE SAFETY > CITY SAFETY"
"Volvo S60 City Safety review"
"High-tech system on Volvos is preventing crashes" 

Volvo Cars
Automotive safety
Engastration. Engastration is a cooking technique in which the remains of one animal are stuffed into another animal. The method supposedly originated during the Middle Ages. Among the dishes made using the method is turducken, which involves placing chicken meat within a duck carcass within a turkey. Some foods created using engastration have stuffing between each layer. The carcasses are normally deboned before being placed together.

See also

 Whole stuffed camel

References

 

Cooking techniques
Food preparation
Culinary terminology
Adler 2 Liter. The Adler 2-litre is a medium-sized family car introduced by the Frankfurt based auto-maker, Adler in February 1938, as a replacement for the Adler Trumpf.

Engine
The car came with a 4-cylinder 1,910 cc engine for which maximum power output of  at 3,900 rpm was claimed.   Top speed was given as 110 km/h (68 mph).   The engine was in many respects no more than a bored-out version of the existing 1,645 cc unit which had been used since 1936 in the Trumpf.

Transmission of power to the front wheels was via a 4-speed manual transmission without synchromesh.   Gear changing used a column-mounted lever.

Bodies
Three standard all-steel bodies were provided in 1938 by Ambi-Budd of Berlin.    Customers could choose between a four-door “Limousine” (saloon/sedan), a cabriolet with four side windows, or a more sporting cabriolet with only limited space for anyone prepared to sit in the back.   The bodies sat on a  wheelbase, and had an overall body length of .   The manufacturer's recommended price was 4,350 Marks for the sedan/saloon and 4,950 for the less expensive of the two cabriolet bodied cars.

There was in addition a sleek more modern looking body from Karmann of Osnabrueck for the “Limousine” which continued to be produced after 1939 when the Ambi-Budd bodies disappeared.   From 1939 cabriolet bodies, broadly similar to the Ambi-Budd cabriolet bodies, were provided by Frankfurt based coachbuilders Dörr & Schreck.

Commercial
The Adler 2-litre continued in production from 1938 until 1940, by which year 7,470 had been produced, a respectable total when compared to the better remembered BMW 326 of which 4,705 were produced in 1938 and 3,313 in 1939, although since the BMW had been in production since 1936 its total production volume was much greater than that of the Adler 2-litre.

References
This entry incorporates  information from the equivalent article in the German Wikipedia.

 

Cars introduced in 1938
Adler 2-litre
Compact cars
Front-wheel-drive vehicles
Cars discontinued in 1940
Mitsubishi 2MB2. The Mitsubishi 2MB2 or Experimental Washi-type Light Bomber was a prototype Japanese single-engined biplane light bomber of the 1920s. A single example was built for the Imperial Japanese Army, but no production followed.

Design and development
In 1925, the Imperial Japanese Army issued a specification for a single-engined bomber, requesting responses from Mitsubishi, Nakajima and Kawasaki. To design an aircraft to meet this requirement, Mitsubishi hired the German designer Alexander Baumann, a professor at Stuttgart University, and former designer of Riesenflugzeug for Zeppelin-Staaken to supervise the design team, with Nobushiro Nakata as chief designer.

The team led by Baumann and Nakata designed a sesquiplane (i.e. a biplane with the lower wing much smaller than the upper) of mixed wood and metal construction. The high-aspect ratio wings were braced by struts arranged in a "W" shape forming a Warren truss, while the fuselage had a metal structure covered in fabric, carrying the crew of two who sat in open cockpits. The aircraft was powered by a single Mitsubishi Hi V-12 (Hispano-Suiza Lb) V12 engine driving a two-bladed fixed pitch metal propeller and had a fixed conventional landing gear. The aircraft carried up to  of bombs, with the pilot aiming two fixed forward firing machine guns, and the observer operating two flexibly mounted machine guns, one in a dorsal position and one in a ventral mount.

The prototype bomber, known as the 2MB2, or Experimental Washi-type Light Bomber (Washi - Eagle), was completed in December 1925. While it demonstrated good performance, and was rated as superior to the proposals from Kawasaki (a modified version of the Dornier Do C) and Nakajima (the Breguet 19) by the Army evaluators, it was considered to too expensive to build owing to its complex structure, and was also rejected. The Japanese Army instead adopted a modified version of Mitsubishi's Navy Type 13 Carrier Attack Aircraft as the Army Type 87 Light Bomber (company designation 2MB1), despite a poorer performance and bombload.

Specifications

Notes

References

2MB2
2MB2, Mitsubishi
Sesquiplanes
Single-engined tractor aircraft
Wind power in Alaska. Wind power in Alaska has the potential to provide all of the electricity used in the U.S. state of Alaska. From its installation, in July 2009 through October 2012, the Pillar Mountain Wind 4.5 MW wind farm has saved the use of nearly  of diesel fuel in Kodiak, Alaska.

Potential production

In early 2010, the National Renewable Energy Laboratory released the first comprehensive update of wind energy potential by state since 1993, showing that Alaska has the potential to install 494,700 MW of wind power, capable of generating 1,620,000 million kWh/year. Alaska used 6,291 million kWh in 2011.

Projects

Eva Creek Wind Project
Fire Island Wind Project
Pillar Mountain Wind Project

Statistics
The following is a table comparing the growth of wind power installed nameplate capacity in MW for Alaska and the entire United States by year from 1999 through 2019.

See also

Solar power in Alaska
Wind power in the United States
Renewable energy in the United States

References

External links

Renewable Energy Projects
McCrory Waterworks. The McCrory Waterworks is a historic site located in McCrory, Arkansas. It contains an elevated steel water tower, built in 1936 by the Chicago Bridge & Iron Company in conjunction with the Public Works Administration, which provided $39,497 in aid for the construction of the waterworks, which included the water tower, tank, and water shed. The site was added to the National Register of Historic Places in 2007, as part of a multiple-property listing that included numerous other New Deal-era projects throughout Arkansas.

See also
Cotter Water Tower
Cotton Plant Water Tower
Hampton Waterworks
Hartford Water Tower
De Valls Bluff Waterworks
National Register of Historic Places listings in Woodruff County, Arkansas

References

External links
An Ambition to be Preferred: New Deal Recovery Efforts and Architecture in Arkansas, 1933-1943, By Holly Hope

Industrial buildings and structures on the National Register of Historic Places in Arkansas
Infrastructure completed in 1935
Water supply infrastructure on the National Register of Historic Places
National Register of Historic Places in Woodruff County, Arkansas
Water towers on the National Register of Historic Places in Arkansas
Public Works Administration in Arkansas
1935 establishments in Arkansas
De Valls Bluff Waterworks. The De Valls Bluff Waterworks is a historic public water supply facility at Rumbaugh and Hazel Streets in De Valls Bluff, Arkansas. It contains a 1930s-era elevated steel water tower, built in 1936 by the Pittsburgh-Des Moines Steel Company in conjunction with the Public Works Administration as part of a project to improve the local water supply. It was added to the National Register of Historic Places in 2007, as part of a multiple-property listing that included numerous other New Deal-era projects throughout Arkansas. The property also contains several non-contributing buildings, including a shed, aeration chamber, and water tank.

See also
Cotter water tower
Cotton Plant water tower
Hampton Waterworks
Hartford Water Tower
McCrory Waterworks
Mineral Springs Waterworks
National Register of Historic Places listings in Prairie County, Arkansas

References

External links
An Ambition to be Preferred: New Deal Recovery Efforts and Architecture in Arkansas, 1933–1943, By Holly Hope

Industrial buildings and structures on the National Register of Historic Places in Arkansas
Buildings and structures completed in 1936
Buildings and structures in Prairie County, Arkansas
Water supply infrastructure on the National Register of Historic Places
Public Works Administration in Arkansas
Infrastructure completed in 1936
National Register of Historic Places in Prairie County, Arkansas
Water towers on the National Register of Historic Places in Arkansas
Trichromy. Trichromy is the colour theory by which any colour can be reproduced solely combining the three primary colours. It relies on human trichromacy.

It is also referred to the three colour process in photography. French histories of photography have claimed that Charles Cros and Ducos du Hauron simultaneously invented its application to photography around 1868, though English histories of photography have claimed that it was first suggested by J. C. Maxwell and defectively demonstrated with the help of Thomas Sutton in 1861 (according to Maxwell himself, Sutton's widespread photochemistry wasn't sensitive enough to red and green light).

Notes 

Science of photography
History of photography