omniomni/omni-engineering huggingface dataset:
Wright Micron. The Micron was the second of two human-powered aircraft designed and built by Peter Wright, an engineer from Melton Mowbray, England.

Wright had previously designed and built the Wright MPA Mk 1, which first flew in 1972. The low wing loading of that design affected the flight opportunities which could be made.  The design of his second human-powered aircraft, the Micron, began in 1974 with the intent that it be robust and practical; to this end, it had a relatively high wing loading, thereby increasing flight opportunities. It was also intended to be easily assembled and transportable in a glider trailer.

The Micron was of conventional configuration. It was a low-wing monoplane, with a very streamlined fuselage and a V-tail empennage. The pilot sat in a recumbent position, pedalling a set of bicycle pedals, and powering a pusher propeller mounted on a pylon located near the front of the fuselage. Power transmission was by a cable/roller drive. The craft made extensive use of plastics, expanded polystyrene, and carbon fibre. The fuselage, tail, and upper wing surfaces were all produced using moulds.

The craft was completed by February 1976, and involved 200 hours of construction time. A month later it was reported that the Micron was undergoing trials at RAF Cranwell, and was being hangared there alongside the Jupiter and Mercury human-powered aircraft. The website Human Powered Flight reports that the craft was later converted into a single-place sailplane, which was based at the Buckminster Gliding Club.

Specifications

See also

References

Human-powered aircraft
Low-wing aircraft
Pusher aircraft
V-tail aircraft
Single-engined pusher aircraft
1970s British experimental aircraft
Unflown aircraft
Aircraft with fixed bicycle landing gear
Brezhnevka. A brezhnevka () is a concrete apartment building that was built in the Soviet Union from 1964–1980 under the leadership of Leonid Brezhnev, after whom the building type is named. The brezhnevka was preceded by the khrushchevka.

History
The brezhnevka originated from a desire for an update to the khrushchevka. As the needs of the population increased, so did the need to build higher-capacity housing. There are now about 40 versions of the brezhnevka.

Design

Exterior
Unlike the five-story khrushchevka that precedes it, the brezhnevka contains nine to seventeen stories. It is usually made of concrete panels, though some are made out of brick. The roof is flat and coated with bitumen. A drain is also installed on the roof.

Interior
The number of rooms in a brezhnevka apartment numbers from one to four. The height of the ceiling reaches 2.7 meters. Kitchens are 6.8 to 7.4 square meters. In the early version of the brezhnevka, the bathroom and toilet were combined. In later versions, the bathroom and toilet are separate rooms.

Other characteristics
Elevators are installed in the brezhnevka. Buildings with fourteen floors had freight elevators as well as passenger elevators. Trash chutes were also installed. The staircases are wider than those of earlier Soviet apartments.

Criticism
The seams between the concrete panels are prone to separation.
Poor insulation.
Bathrooms are small.
Low quality sound insulation.

Gallery

References 

Buildings and structures built in the Soviet Union
Leonid Brezhnev
Soviet phraseology
List of bridges in Colombia. 

Major bridges 
This table presents a non-exhaustive list of the road and railway bridges with spans greater than .

See also 

 Transport in Colombia
 Highways in Colombia
 Rail transport in Colombia
 Geography of Colombia
 List of rivers of Colombia
 :es:Anexo:Carreteras nacionales de Colombia  - Annex: National highways of Colombia

References 
 Notes

 Nicolas Janberg, Structurae.com, International Database for Civil and Structural Engineering

 Others references

Further reading

External links 

 
 
 

Colombia

Bridges
b
Assimina Pelegri. Assimina A. (Mina) Pelegri  (born 1968) is a Greek-American aerospace engineer and materials scientist whose research involves the use of the finite element method to model and study composite materials and biological soft tissue. She is a professor at Rutgers University, where she chairs the Department of Mechanical & Aerospace Engineering.

Education and career
Pelegri was born in 1968. After earning a diploma in metallurgy at the National Technical University of Athens in 1992, Pelegri went to Georgia Tech for graduate studies in Aerospace Engineering, supported by a Fulbright Fellowship. She earned a master's degree in aerospace engineering in 1994, and completed a Ph.D. degree in 1997, also completing a degree in the management of technology at the same time through Georgia Tech's Scheller College of Business.

She has been on the Rutgers University faculty since 1997, and from 2010 to 2013 held the M. W. Railser Distinguished Teaching Chair there.

Recognition
Pelegri was named an ASME Fellow in 2014.

References

External links

1968 births
Living people
Materials scientists and engineers
Women materials scientists and engineers
Greek engineers
Greek women engineers
American engineers
American women engineers
National Technical University of Athens alumni
Georgia Tech alumni
Rutgers University faculty
Fellows of the American Society of Mechanical Engineers
Wright MPA Mk 1. The Wright MPA Mk 1 was the first of two human-powered aircraft designed and built by Peter Wright, an engineer from Melton Mowbray, England.

Background 
Design of the aircraft began in October 1969, with construction itself beginning mid-1971. It was completed by February 1972, with that taking 500 hours. Wright's approach was to reduce the aircraft's weight and its construction time by minimising the amount of materials used to construct the aircraft.

The aircraft was a mid-wing monoplane. The pilot sat in a semi-recumbent position, and powered a rear-mounted 2-bladed propeller via bicycle pedals driving a bicycle chain and driveshaft transmission. The framework for the pilot support and the transmission was made from mild steel tubing, with the remainder of the aircraft being constructed from expanded polystyrene, plastics, balsa, with carbon fibre being used to reinforce the structure.  Compared to other human-powered aircraft of the era, the MPA Mk 1 had a very large wing area, with a very low wing loading. This affected the number of opportunities available to undertake flights.  The aircraft was fitted with a tricycle undercarriage, with the front wheel being powered, and two small trailing wheels castering. The empennage was of a cruciform type, with an all-flying elevator and a conventional fin and rudder.  There was no lateral control.

The first flight was made at Langar airfield near Nottingham, in February 1972, when it covered 120 yards (110 metres) at an altitude of 1 ft (0.3 metres). When initially tested, the pilot had rudder control only, with the elevator being fixed, and the undercarriage adjusted to give the aircraft the correct incidence for take-off. Eventually, flights of up to 300 yards (275 metres) were made. In 1975, it was reported that the aircraft was in store, pending the availability of a suitable flying site.

Wright went onto design and produce a second human-powered aircraft, the Micron.

Specifications

See also

References

Human-powered aircraft
Mid-wing aircraft
Pusher aircraft
Cruciform tail aircraft
Single-engined pusher aircraft
Aircraft first flown in 1972
1970s British experimental aircraft
Aircraft with fixed tricycle landing gear
Karry Porpoise. The Karry Porpoise is an electric light, commercial 5/6-door van designed and produced by the Chinese automaker Karry since June 2022.

Overview

The Karry Porpoise EV is an fully electric urban logistics van by Karry, specially designed for the needs of urban logistics and distribution. The same platform also spawned an ICE powered pickup truck called the Karry X6.

From 2024, the Karry Porpoise EV received various variants in dimensions, with the original Karry Porpoise being renamed the Karry Porpoise E6 retaining the 4746mm length, a longer Karry Porpoise E7 with a length of 5150mm, and a shorter Karry Porpoise E5 with a length of 4480mm.

Specifications
The Karry Porpoise EV was built on a frame chassis with a permanent magnet synchronous electric motor positioned over the rear axle, with the output of which reaching 60 kW, and 220 Nm of torque. A 41.86 kWh lithium iron phosphate flat battery pack is located right under the floor. The Karry Porpoise EV is capable of covering 285 km on one charge. The powertrain layout of the Porpoise EV is rear-wheel drive, with MacPherson-type independent front suspension and rear-dependent leaf springs. The top speed is 80 km/h, and the cargo space is 6.6 cubic meters.

Karry X6/ Little Elephant EV
The Karry X6 is the gasoline powered micro truck variant of the Porpoise EV. The Karry X6 was launched in February 2022, and available as a crew cab and single cab body style. The powertrain of the Karry X6 is a 1.6 liter engine mated to a 5-speed manual transmission developing 22hp and 158N·m of torque.

The  (Xiaoxiang EV,小象EV) is the micro truck variant of the Porpoise EV. Sharing the body with the Karry X6 while featuring the grille-less front end of the Karry Porpoise. It was launched in January 2023 and features a 85kW permanent magnet synchronous motor and 55.7kWh lithium iron phosphate battery (LFP battery) supplied by CATL, supporting a CLTC range of 251km. It is equipped with the e-Motion Drive 2.0 electric drive system with 30%-80% of the battery charged within 36 minutes.

JAC Lanmao M1
The JAC Lanmao M1 (蓝猫M1) is a rebadged variant of the Karry Porpoise electric van. The JAC Lanmao M1 features a restyled front bumper and 40.55kWh batteries supplied by Gotion High-Tech.

References

External links
Official website

Porpoise
Vans
Electric vans
Cars introduced in 2022
2020s cars
Rear-wheel-drive vehicles
Nordic Institute for Interoperability Solutions. The Nordic Institute for Interoperability Solutions (NIIS) is a non-profit established in 2017 by Estonia and Finland, with the mission "to develop e-governance solutions...with the X-Road technology used nationwide in the Estonian X-tee and in the Finnish Suomi.fi Data Exchange Layer services". It is funded by both countries, with around 1M€ annually. In 2019, Iceland was invited as well, and later the Faroe Islands.

The NIIS manages, develops, verifies, and audits X-Road's source code; administers documentation, business and technical requirements; conducts development; develops and implements principles of licensing and distribution; provides second-line support for members, and engages in international cooperation. It also shares vendor training and certifications on its technology.

The institute has been coined as "a pioneer of cross-border e-governance solution"  and "a key component of its digital diplomacy and digital foreign policy work", "unique in the world". In 2020, the Digital Public Goods Alliance found the X-Road technology managed by NIIS was found to be a digital public good in alignment with the Digital Public Goods Standard. Its CEO, Ville Sirviö, is often referenced in international publications.

References

External links 

Internet in Estonia
Government agencies of Estonia
Government agencies of Finland
Government agencies of Iceland
Estonia–Finland relations
2017 establishments in Estonia
2017 establishments in Finland
Free and open-source software organizations
Non-profit technology
Lanthanum-nickel alloy. Lanthanum forms several alloys with nickel, including LaNi5, La2Ni7, LaNi2, LaNi3, La2Ni3, LaNi and La3Ni etc.

LaNi5 

LaNi5 is an intermetallic compound with a CaCu5 structure. It belongs to the hexagonal crystal system. It can be oxidized by air above 200 °C, and react with hydrochloric acid, sulfuric acid or nitric acid above 20 °C. LaNi5 can be used as a catalyst for hydrogenation reactions.

Other alloys 

In addition to LaNi5, there are other alloys such as La2Ni7, LaNi2, LaNi3, La2Ni3, LaNi, and La3Ni, and nonstoichiometric alloys such as LaNi2.286 (tetragonal, space group I4̄2m). The nickel atoms in LaxNiy can also be replaced by other atoms, such as LaNi2.5Co2.5.

See also 
 List of named alloys

References 

Nickel alloys
Intermetallics
Nickel compounds
Lanthanum compounds
Lanthanum pentanickel. LaNi5 is a hexagonal intermetallic compound composed of rare earth element lanthanum and transition metal nickel. It presents a calcium pentacopper (CaCu5) crystal structure. It is a melting compound with the same composition and has hydrogen storage capacity.

Structure 

LaNi5 has a calcium pentacopper (CaCu5) type crystal structure, with a hexagonal lattice, space group is P6/mmm (No. 191), with lanthanum atom is located at coordinate origin 1a (0,0,0), two nickel atoms are located at 2c (1/ 3,2/3,0) and (2/3,1/3,0), the other three at 3g (1/2,0,1/2), (0,1/2,1/2), (1/2,1/2,1/2), with a=511pm, c=397pm. The unit cell contains 1 LaNi5 atom, the volume is 90×10−24 cm3, the LaNi5 unit cell contains a larger The six deformed tetrahedral voids can be used to fill in hydrogen atoms.

Chemical reactions 

As a hydrogen storage alloy, LaNi5 can absorb hydrogen to form the hydride LaNi5Hx (x≈6) when the pressure is slightly high and the temperature is low, or when the pressure decreases or the temperature increases, hydrogen can be released to form repeated absorption and release of hydrogen. Energy must be added for the dehydrogenation process to proceed as it is an endothermic reaction. A decrease in temperature will cause the reaction to stop.

Characteristics and applications 

The hydrogen storage density per unit volume (crystal) of LaNi5H6.5 at 2 bar is equal to the density of gaseous molecular hydrogen at 1800 bar, and all hydrogen can be desorbed at 2 bar. Although the hydrogen storage density in practical applications is reduced due to the aggregation of some LaNi5 powders, it is still higher than the density of liquid hydrogen. This allows safe operation of hydrogen fuel. In order to improve its hydrogen storage performance, metals such as lead or manganese are often used to partially replace nickel. Currently, LaNi5 is commonly used in storage and transportation of hydrogen, hydrogen vehicle power, fuel cells, separation and purification of hydrogen, propylene hydrogenation catalysts, etc.

References 

Lanthanum compounds
Nickel compounds
Nickel alloys
Intermetallics
AlphaLab. AlphaLab is an American technology startup accelerator based in Pittsburgh, Pennsylvania. It was founded in 2008 by Jim Jen. AlphaLab has four tracks, Software, Hardware (AlphaLab Gear), Life Sciences (AlphaLab Health), and Robotics (Robotics Factory).

History 
AlphaLab was founded in 2008 by Jim Jen to help startups develop and launch their products, grow their customer base, and secure venture capital funding. The specific amount of funding provided by AlphaLab is up to $100,000, depending on the startup's needs and stage of development. AlphaLab follows a similar structure to Y Combinator. The accelerator is a subsidiary of Innovation Works, which receives funding from the state of Pennsylvania for economic development. It focuses on technology startups headquartered in the Pittsburgh region. AlphaLab was one of the first 10 accelerators in the United States and one of the first 100 accelerators in the World.

AlphaLab created AlphaLab Gear (hardware track) in 2013 and AlphaLab Health (life sciences track) in 2021, each operating as part of the AlphaLab accelerator program.

Programs 
AlphaLab has four tracks, Software, Hardware (AlphaLab Gear), Life Sciences (AlphaLab Health), and Robotics (Robotics Factory). The AlphaLab program provides startups with many resources and mentorship support, including access to office space, funding, programming, and mentorship.

AlphaLab’s curriculum is built around three principles that they call "the 3 Cs": Customer, Capital, and Community.

In the past, the collective AlphaLab has hosted a Demo Day to showcase the latest technology produced by their startup cohorts.

AlphaLab Gear
AlphaLab Gear, launched in 2013, is the hardware track of the AlphaLab accelerator, with a specific focus on supporting hardware, internet of things (IoT), and robotics startups. In the past, AlphaLab Gear hosted a yearly hardware startup pitch contest called the Hardware Cup where startups compete for $50,000 in investment.

AlphaLab Health 
Launched in 2022, AlphaLab Health, is the healthcare and life sciences track of the AlphaLab accelerator. It was billed as a collaboration between their parent company Innovation Works and regional hospital network Allegheny Health Network as a way to streamline medical device prototypes. This became an evergreen fund in 2024 after a $10M anonymous donation.

Alumni companies 

 Identified Technologies, a drone mapping company
 NoWait, a restaurant booking company, acquired by Yelp for $40 million
 Spoken, a software company that develops an augmentative and alternative communication app
 The Zebra, an insurance company

See also
 Startup accelerator

References

External links
 AlphaLab
 AlphaLab Gear
 AlphaLab Health

Business incubators of the United States
Companies based in Pittsburgh
Startup accelerators
Venture capital firms of the United States
Holberry Mensforth. Sir Holberry Mensforth, KCB, CBE (1 May 1871 – 5 September 1951), engineer and engineering company executive.

His second son Sir Eric Mensforth was a pioneer of the British helicopter industry.

References 

 https://www.oxforddnb.com/display/10.1093/ref:odnb/9780198614128.001.0001/odnb-9780198614128-e-48057
 https://www.ukwhoswho.com/display/10.1093/ww/9780199540891.001.0001/ww-9780199540884-e-240702

External links 

 

1871 births
1951 deaths
Knights Commander of the Order of the Bath
Commanders of the Order of the British Empire
20th-century British engineers
20th-century British businesspeople
Codimex CD-6809. The Codimex CD-6809 was an 8-bit home computer produced in Brazil by the company Codimex Imp.Exp. de Computadores Ltda from Porto Alegre. It was introduced in early 1983, during the Brazilian "Market Reserve" period, and based on the TRS-80 Color Computer.

The CD-6809 was the first Brazilian home computer compatible with the TRS-80 Color line. It was marketed as a computer for small business, entertainment and self employed professionals, and was sold with a 149-page user manual.

Around 380 units were produced at the Porto Alegre plant. The machine can be emulated under MAME.

Technical features 
The basic features of the Codimex CD-6809 are similar to the TRS-80 Color Computer:

 CPU: Motorola 6809E, 895 kHz to 1.79 MHz
 Memory:
 ROM: 16 KB (containing "Color BASIC 1.1" and "Extended Color BASIC 1.0")
 RAM: 32 KB
 Keyboard:
 Built-in, 53-keys
 Display: Motorola 6847, 9 colors
 Text mode (with 32 x 16 characters)
 Low resolution graphics (with 64 x 32 pixels)
 Medium and high resolution graphics (up to 256 x 192 pixels, 2 colors per pixel)
 Expansion port (cartridges, 40 pin)
 Other ports:
 PAL-M RF out
 RS-232C serial port (5 pin DIN)
 Joysticks (5 pin DIN)
 Cassette recorder (1500 baud, with remote engine control, 5 pin DIN)

The machine had a unique "Reverse Video" switch on the back, that displayed a black background with green characters.

See also 
 Motorola 6809
 CP 400 COLOR
 LZ Color 64
 TRS-80 Color Computer

References 

Computer-related introductions in 1983
Goods manufactured in Brazil
Personal computers
TRS-80 Color Computer
Lanthanum acetate. Lanthanum acetate is an inorganic compound, a salt of lanthanum with acetic acid with the chemical formula . According to X-ray crystallography, anhydrous lanthanum acetate is a coordination polymer.  Each La(III) center is nine-coordinate, with two bidentate acetate ligands and the remaining sites occupied by oxygens provided by bridging acetate ligands.  The praseodymium and holmium compounds are isostructural.

Synthesis
Lanthanum acetate can be formed by the reaction of lanthanum(III) oxide and acetic anhydride:

It is also made in a reaction of lanthanum oxide with 50% acetic acid:

Physical properties
Lanthanum(III) acetate forms colorless crystals.

Lanthanum acetate dissolves in water.

Lanthanum acetate forms hydrates of the composition , where n = 1 and 1.5.

Lanthanum acetate and its hydrates decompose when heated.

Uses
Lanthanum acetate is used in specialty glass manufacturing and in water treatment.

Also, it is used to produce porous lanthanum oxyfluoride (LaOF) films.

It is also used as a component in the production of ceramic products and as a catalyst in the pharmaceutical industry.

References

Inorganic compounds
Acetates
Lanthanum compounds
LZ Color 64. The Color 64 was an 8-bit home computer produced in Brazil by the Rio de Janeiro company Novo Tempo / LZ Equipamentos between 1983 and 1986. It was one of the many machines based on the TRS-80 Color Computer introduced during the Brazilian "Market Reserve", like the Codimex CD-6809 or Prológica CP 400 COLOR.

History 
Launched in mid-1983, the Color 64 was the second Brazilian TRS-80 Color Computer clone. The production line was installed in the old premises of Cervejaria Skol in Rio de Janeiro.

Due to its graphic and sound capabilities, Novo Tempo/LZ developed the "Computational Resources Switch" ("Comutador de Recursos Computacionais"), a piece of hardware designed for the educational market, allowing the creation of a small computer network. With it, a teacher could control ten other Color 64s, sharing programs and a printer.

Despite being one of the first TRS-80 Color clones in Brazil, its success was limited to the Rio de Janeiro state, due to limited marketing in the rest of the country. According to Folha de S. Paulo, the Color 64 had a retail price of 1.2 million Cr$ in July 1984.

To publicize TRS-80 Color Computers in Brazil and increase Color 64 sales, Novo Tempo/LZ encouraged the creation of user clubs in Rio de Janeiro. The largest one was "Clube Color", operating on the premises of the Micromaq software house.

Production of the Color 64 was discontinued in 1986, with the arrival of MSX machines offering better color and sound capabilities.

Technical features 
The basic features of the LZ Color 64 are similar those of the TRS-80 Color Computer.

 CPU: Motorola 6809E, 890 kHz to 1.8 MHz
 Memory:
 ROM: 16 KB (containing Color BASIC and Extended Color BASIC)
 RAM: 64 KB
 Keyboard:
 Built-in, 53-keys
 Display: Motorola 6847, 9 colors
 Text mode (with 32 x 16 characters)
 Low resolution graphics (with 64 x 32 pixels)
 Medium and high resolution graphics (up to 256 x 192 pixels, 2 colors per pixel)
 Expansion port (cartridges, disk interfaces, etc.)
 Other ports:
 Composite video monitor (PAL-M color TV using an external modulator)
 RS-232C serial port
 Analogue or digital joysticks
 Cassette recorder (1500 baud, with remote engine control)

See also 
 Motorola 6809
 CP 400 COLOR
 Codimex CD-6809
 TRS-80 Color Computer

References 

Computer-related introductions in 1983
Goods manufactured in Brazil
Personal computers
TRS-80 Color Computer