omniomni/omni-engineering huggingface dataset:
Tetrabutylammonium. Tetrabutylammonium is a quaternary ammonium cation with the formula , also denoted  (where Bu = butyl group). It is used in the research laboratory to prepare lipophilic salts of inorganic anions. Relative to tetraethylammonium derivatives, tetrabutylammonium salts are more lipophilic but crystallize less readily.

Derivatives
Some tetrabutylammonium salts of simple anions include:
tetrabutylammonium fluoride, a desilylation reagent.
tetrabutylammonium bromide, a precursor to other tetrabutylammonium salts via salt metathesis reactions.
tetrabutylammonium iodide, a low cost catalyst.
tetrabutylammonium triiodide, a common carrier of the triiodide anion used in chemical synthesis.
tetrabutylammonium hydroxide, a precursor to other tetrabutylammonium salts via acid-base reactions.
tetrabutylammonium hexafluorophosphate, an electrolyte for nonaqueous electrochemistry.
Some tetrabutylammonium salts of more complex examples include:
polyoxometalates.
NS.
metal carbonyl anions.
Synthetic iron-sulfur clusters such as 
Octachlorodirhenate ().

See also
 N-Butyllithium

References

Reagents for organic chemistry
Quaternary ammonium compounds
Cations
Rock Island Depot (El Reno, Oklahoma). The Rock Island Depot is a one-story brick structure in El Reno, Oklahoma. Built in 1907 on the railroad tracks that ran along the western boundary of the Unassigned Lands that led to El Reno's settlement in 1889, it served as a passenger and freight terminal for the junction of the east–west and north–south lines of the Rock Island Railroad.

The one-story building is notable for its length, , but otherwise maintains the standard depot design. The architecture is Mission/Spanish Colonial Style. The roof is red tile and the exterior is red brick. Windows are double-hung and have white stone sills. Embellishments include stone keystones above the windows. Brick walls in front of the depot and on the platforms were originally installed.

The depot was a working railroad station until the early 1970s. The Canadian County Historical Society then took ownership of the building, which now houses the Canadian County Historical Museum.

References

Buildings and structures in Canadian County, Oklahoma
Chicago, Rock Island and Pacific Railroad
1907 establishments in Oklahoma
Intel 82288. The Intel 82288 is a bus controller designed for Intel 80286. The chip is supplied in 20-pin DIP package. It replaces 8288 used with earlier processors.  Intel second sourced this chipset to Fujitsu Limited around 1985.  The 20-pin PLCC version was available in sampling for first quarter of 1986.

External links 
 www.datasheetarchive.com: 82288 Bus Controller for iAPX 286 Processors.

References 

Intel chipsets
IBM PC compatibles
Input/output integrated circuits
List of Shaker inventions. This article contains a list of inventions by the Shakers, officially known as the United Society of Believers in Christ's Second Appearance. Founded in the 18th century, the Shakers, a celibate sect who lived a communal lifestyle, were known for their many innovative creations in varied fields including agriculture, furniture, housework, and medicine.

Architecture 
 Adjustable ventilating door transoms
 Round barn
 Sash-balance counterweight
 Shaker stairs

Food and agriculture 
 Apple parer and corer
 Automatic seed planter
 Condensed milk
 Fertilizer spreader
 Pea sheller
 Rotary harrow
 Shaker Lemon Pie
 Threshing machine

Furniture 
 Shaker pantry box
 Shaker tilting chair

Medicine and healthcare 
 Corbett's electrostatic machine
 Syrup of Sarsaparilla

Tools and appliances 
 Circular saw
 Peg-boards (often called "clothes-pins")
 Deacon Daniel Baird's machinery for making pails, wash boards, and shingles 
 Cut nails
 Flat broom
 Lumber-drying kiln
 No-kill mousetrap
 Metal pen
 Revolving oven
 Small paper packets for seeds
 Shaker broom vise
 Shaker spinning wheel
 Water-powered cooling fan
 Wheel-driven washing machine
 Wood-burning stove

References 

Inventions
Furnas Mill Bridge. Furnas Mill Bridge, also known as County Bridge No. 7080, is a historic Pratt through truss located in Blue River Township, Johnson County, Indiana. It was built in 1891 by the King Iron Bridge Co.  The bridge consists of two 120 foot long spans, with a 16 foot wide roadway. The bridge rests on limestone block abutments and a central pier.

It was listed on the National Register of Historic Places in 2001.

References

Road bridges on the National Register of Historic Places in Indiana
Bridges completed in 1891
Transportation buildings and structures in Johnson County, Indiana
National Register of Historic Places in Johnson County, Indiana
Pratt truss bridges in the United States
Metal bridges in the United States
Oxalatonickelate. The oxalatonickelates are a class of compounds that contain nickel complexed by oxalate groups.  They form a series of double salts, and include clusters with multiple nickel atoms. Since oxalate functions as a bidentate ligand it can satisfy two coordinate positions around the nickel atom, or it can bridge two nickel atoms together.

The shape around the nickel atom is octahedral for diaquabis(oxalato)nickelate. The colour of this is green due to the Ni(–O–)6 chromophore. The absorption in infrared is at 8,300 9,060 13,400, 15,260, and 26,160 cm−1. The ligand field parameters are 10 Dq=8800 cm−1 and B=1000 cm−1.

Because the Ni2+ ion resembles many other divalent metal ions, it can be substituted by them, or substitute for them in other oxalate compounds to form mixed oxalates where the proportions can vary continuously. For example, magnesium nickel oxalate dihydrate.

References

Oxalato complexes
Nickel complexes
Radek Maneuver. The Radek Maneuver is a scale-up-then-scale-down tactic used in the administration of web services, specifically those deployed under a cloud computing paradigm (by a provider e.g. Amazon Elastic Compute Cloud or Microsoft Azure).

History 
Developed by Olivier "Radek" Dabrowski in the mid-2010s, the Radek Maneuver was originally conceived of in using and maintaining applications running on a PaaS system.

Execution 
The Radek Maneuver consists of a series of steps, usually executed via the PaaS or web portal interface.

The tactic should be used when a service is misbehaving or otherwise experiencing errors, and the suspected cause is the underlying cloud layer, rather than the application layer. This includes networking issues and other "bad box" problems.

The steps are as follows:
 Identify the application or service which is misbehaving.
 Increase the compute resource (number of CPU cores, amount of ram) for the instance on which the application is running. This is also known as scaling up.
 Wait for the application to re-deploy and stabilize.
 Scale back down to the original instance size.

Principle of action 
This scale-up-scale-down method is understood to shift the application to a different physical machine underlying the PaaS service or application virtual machine. While this layer of the cloud computing stack is generally out of the access of an application developer (instead in the hands of the cloud provider), the maneuver allows troubleshooting and dodging errors in that layer.

References 

Cloud computing
NATS Messaging. NATS is an open-source messaging system (sometimes called message-oriented middleware). The NATS server is written in the Go programming language. Client libraries to interface with the server are available for dozens of major programming languages. The core design principles of NATS are performance, scalability, and ease of use. The acronym NATS stands for Neural Autonomic Transport System.

Synadia develops and provides support for NATS. NATS was originally developed by Derek Collison as the messaging control plane for Cloud Foundry and was written in Ruby. NATS was later ported to Go.

The source code is released under the Apache 2.0 License. NATS consists of:
 The NATS Server - The core Publish-Subscribe Server for NATS.
 Client libraries for a variety of programming languages.
 A connector framework - a pluggable Java based framework to connect NATS and other services. NATS is a CNCF project with Kubernetes and Prometheus (software) integration.

The NATS server is often referred to as either 'Core NATS' or NATS with 'JetStream'.
'Core NATS' is the set of core NATS functionalities and qualities of service.
'JetStream' is the (optionally enabled) built-in persistence layer that adds streaming, queues, at-least-once and exactly-once delivery guarantees, historical data replay, decoupled flow-control and key/value store functionalities to Core NATS. JetStream replaced the old STAN (NATS Streaming) approach.

Example

Below is a sample connection string from a telnet connection to the demo.nats.io site:

Trying 107.170.221.32...
Connected to demo.nats.io.
Escape character is '^]'.
INFO {"server_id":"NCURTNCYNYCY7RQPLPHPPE3G5RZW7VZDVPPXI7ORSEFP3FLJOD4LZSSL","server_name":"us-south-nats-demo","version":"2.10.25","proto":1,"git_commit":"006039e","go":"go1.23.5","host":"0.0.0.0","port":4222,"headers":true,"tls_available":true,"max_payload":1048576,"jetstream":true,"client_id":57215,"client_ip":"136.62.97.251","nonce":"VF3sSuRNaKVe_pU","xkey":"XBUHUXVNAY7KEZ6NIZGM5M7BIG7SEX3JY3Y2GE6H4YNUEWCS24YSM5RQ"}

References

See also 
 Prometheus nats exporter

Further reading
 
 
 
 
 
 
 
 
 

Free software programmed in Go
Message-oriented middleware
Cloud infrastructure
Free software for cloud computing
Service-oriented architecture-related products
Enterprise application integration
Cross-platform free software
Software using the Apache license
Bede Liu. Bede Liu (; born 1934) is a Taiwanese-American engineer. He is a professor emeritus at Princeton University.

Biography 

He was born in Shanghai, China, in 1934. He received his bachelor's degree in electrical engineering at National Taiwan University. He earned his master's degree and Ph.D. in 1956 and 1960, respectively, in electrical engineering, from what is now called the New York University Tandon School of Engineering.

Liu has received the IEEE Fourier Award for Signal Processing. He was elected a member of the National Academy of Engineering in 2002 for contributions to the analysis and implementation of digital signal processing algorithms. He was also elected a member of Academia Sinica in 2006. He has a number of patents to his credits.

Liu's doctoral students include 2 members of the U.S. National Academy of Engineering, 25 IEEE Fellows, 4 IEEE Millennium medalists.

References

1934 births
Living people
Polytechnic Institute of New York University alumni
Members of the United States National Academy of Engineering
Engineers from Shanghai
National Taiwan University alumni
Princeton University faculty
Chinese emigrants to the United States
Taiwanese emigrants to the United States
Foreign members of the Chinese Academy of Sciences
Members of Academia Sinica
HSC Mega Jet. HSC Mega Jet is a high speed catamaran operated by Seajets.

History

Mega Jet is one of three 78 m catamarans built by Incat Yards in Tasmania, Australia. Built in 1995 as Cat-Link I, she was later renamed Thundercat 1 and Tarifa Jet.  In 2008, she was sold to Greek ferry operator Seajets and was renamed Mega Jet.

Regular routes
As of 2016, she operates routes between Crete and several Cycladic islands in the Aegean Sea.

In summer season 2017/2018/2019 Mega Jet operated the Islands in the Azores area on charter to Alanticolines

References

External links
78 Metre Wave Piercing Catamaran from incat

Ships of Seajets
Ships built by Incat
Ferries of Greece
Incat high-speed craft
1995 ships
Philip Withers. Philip John Withers (born May 1963) is the Regius Professor of Materials in the School of Materials, University of Manchester. and Chief Scientist of the Henry Royce Institute.

Education
Withers was educated at the University of Cambridge where he was awarded an undergraduate degree in Natural Sciences (Physics) in 1985 followed by a PhD degree in the metallurgy of Metal Matrix Composites (MMCs) in 1988.

Career and research
Following his doctorate, Withers was appointed a lecturer at Cambridge before being appointed Professor at the University of Manchester in 1998.  His research investigates the application of advanced techniques to follow the behaviour of engineering and natural materials in real time and in 3D.

In 2008 Withers set up the Henry Moseley Manchester X-ray Imaging Facility (MXIF), which has extensive suites of 3D X-ray Imaging facilities. In 2012, Withers became the inaugural Director of the BP International Centre for Advanced Materials (ICAM) aimed understanding and developing materials across the energy industry. ICAM is a collaboration between BP, The University of Manchester, The University of Cambridge, Imperial College London and the University of Illinois at Urbana–Champaign.

With Bill Clyne, he is a co-author of the textbook An Introduction to Metal Matrix Composites. His research has been funded by the Engineering and Physical Sciences Research Council (EPSRC).

Awards and honours
Withers was elected a Fellow of the Royal Academy of Engineering (FREng) in 2005 and a Fellow of the Royal Society (FRS) in 2016. In 2014, the University of Manchester was awarded the Queen's Anniversary Prize, recognising Withers work at the Manchester X-ray Imaging Facility.

References

External links 

 

Living people
Fellows of the Royal Society
Foreign members of the Chinese Academy of Engineering
Academics of the University of Manchester
1963 births
Royal Society Wolfson Research Merit Award holders
Fellows of the Royal Academy of Engineering
Nuki (joinery). Nuki is a Japanese style of carpentry joint connection. Nuki joints are common in Japanese and oriental carpentry, and comprise one of the simplest structural connectors. They are similar to mortise and tenon joints, and have been used traditionally in historic buildings, such as Shinto shrines and Buddhist temples, and also in modern domestic houses. The basic principle involves penetrating one element through another (i.e., embedment); in Japan and other Asian countries this method is used to connect wooden posts and beams.

References

Joinery
Architecture in Japan
Woodworking
Turris Omnia. Turris Omnia started as a crowdfunded open-source SOHO network router developed by the CZ.NIC association.

On 31 January 2016 the Turris Omnia was presented at FOSDEM 2016.

Routers from campaign were delivered in 2016. After that, routers started to be sold through various resellers including Alza.cz, Amazon and various local resellers.

Design
The Turris Omnia is designed to provide its owner with freedom in use. As such it uses open-source software. In addition, the creators published the electrical schematics.

It also incorporates several security measures. It features automated software updates, so software vulnerabilities can be addressed quickly, a unique feature among SOHO routers. It also enables DNSSEC by default and also allows people to easily participate in distributed adaptive firewall which tries to automatically identify attackers by collecting data from numerous sources.

Apart from that, the router yields a sufficient performance that it can handle gigabit traffic and double as home server, NAS and print server.

Funding
Funding for the Turris Omnia initially funded via a crowdfunding campaign at Indiegogo with a target of US$100 000 by 12 January 2016. As the deadline passed, the funding had reached US$857 000.

At the end of campaign, the funding had reached 1 223 230 US$.

Since then, router is sold in retail via various resellers.

Specifications

It is powered by a 1.6 GHz dual-core Marvell Armada 385 ARM CPU. The base model now has 2 GB RAM and 8 GB flash storage, a real-time clock with battery backup, a SFP module and a hardware cryptographically secure pseudorandom number generator. Via Mini PCI Express it supports Wi-Fi in the form of 3×3 MIMO 802.11ac and the older 2×2 MIMO 802.11b/g/n.

Its connectivity consists of:
 1 WAN and 5 LAN gigabit ports
 2 USB 3.0 ports
 2 Mini PCI Express
 1 mSATA / mini PCI Express
 1 SIM card slot

Initially the devices shipped with 1 GB RAM by default with a 2 GB upgrade available, however 2 GB is now the default configuration.

Software 
The Turris Omnia runs the Turris OS, an OpenWrt derivative. It can be managed by web interfaces as well as by CLI. The main web interface is now reForis which is the successor of the legacy Foris; it offers features for regular users, such as WAN and LAN configuration or system reboot. Advanced users can utilize LuCI, the standard web user interface in OpenWrt.

References

External links 

Wireless networking hardware
Hardware routers
Linux-based devices
Open-source hardware
Uranium ruthenium silicide. Uranium ruthenium silicide (URu2Si2) is a heavy fermion alloy composed of uranium, ruthenium, and silicon. URu2Si2 has the same '122' tetragonal crystal structure as many other compounds of present condensed matter research. URu2Si2 is a superconductor with a hastatic order (HO) phase below a temperature of 17.5 K. Below this temperature, it is magnetic, and below about 1.5 K it superconducts. However, the nature of the ordered phase below 17.5K is still under debate despite a wide variety of scenarios that have been proposed to explain this phase.

References

Correlated electrons
Superconductivity
Silicides
Uranium compounds
Ruthenium compounds
Monty Taylor. Monty Taylor (born 12 August 1975) is a free software
hacker, theatre director and lighting designer. He has been named one of the most
important people in cloud computing and was featured by Wired
as part of 'The New Hackers'.

Free software

MySQL 
Monty was a Senior Consultant at MySQL AB. While there
he was a specialist in High Availability and MySQL Cluster which led to
the creation of NDB-connector, a set of bindings to the
underlying NDB API of MySQL Cluster.

After MySQL was acquired by Sun, Monty joined the team working on Drizzle. which
subsequently moved to Rackspace after the Oracle acquisition of Sun.

OpenStack 
While at Rackspace, Monty helped to launch the OpenStack project.
He was responsible for the original creation of OpenStack's "Gating" system
and is the founder and past PTL of the OpenStack Infra project. He is one of the top overall contributors to OpenStack over the history of the project.

Monty serves as an Individual Member on the OpenStack Foundation board of directors as well as the OpenStack Technical Committee

In 2011, Monty moved from Rackspace to HP. There he formed a team that
developed TripleO project for deploying OpenStack which went on to become the
basis for the first release of HP's Helion OpenStack and Red Hat's RDO

In 2013, Monty was honored by the Brazilian Government for his contributions to
Free Software.

In 2015, Monty moved to IBM to lead the OpenStack
Innovation team as a Distinguished Engineer.

From 2016 to 2020,  Monty was a Member of Technical Staff at Red Hat working on CI with Zuul and Ansible.

Theatre
Monty started his Theatre career as a stagehand at Stewart Theatre in Raleigh, North Carolina while enrolled at North Carolina State University.

Monty later transferred to Abilene Christian University where he got a BFA in Theatre with a focus on directing. While there, he served as
lighting designer and technical director for ACU's Sing Song event.
 He continued his education in the MFA program at CalArts, but left and moved to Seattle in 2005.

Monty directed a mildly controversial adaptation of Shakespeare's Henry V called
King Henry for Ghostlight Theatricals.
He was also a frequent collaborator at Taproot Theatre in Seattle,

Penfold Theatre in Austin

and with The Bengsons on their rock opera Hundred Days in Seattle, New York and San Francisco. In celebration of the first day of legal same-sex marriage in the State of Washington, Monty lit Seattle's City Hall.

Monty is an associate artist with Seattle's The Satori Group. He designed the lighting for all of Satori's productions from
2009–2011. During that time, The Satori Group was runner up for the Seattle Times' "Friskiest Fringe
Establishment" award in 2009, and won the "Avant-garde Afterglow" award for their production
of and adaptation of George Saunders' short story "Winky".

References

American computer programmers
Abilene Christian University alumni
California Institute of the Arts alumni
Living people
1975 births
Aiuaba Ecological Station. Aiuaba Ecological Station () is an ecological station in the state of Ceará, Brazil.
It preserves an area of Caatinga dry forest biome. The conservation unit is threatened from deforestation and hunting by the local people.

Location

Aiuaba Ecological Station ESEC is in the Caatinga biome. It covers .
It was created by decree on 6 February 2001 and is administered by the Chico Mendes Institute for Biodiversity Conservation.
The conservation unit is in the municipality of Aiuaba in the state of Ceará.
It is in the mid-north sedimentary basin in the Serra de Ibiapaba.
The area is hilly in some areas, flatter in others. It reaches altitudes of  above sea level.

Average annual rainfall is , with most rain falling between December and June.
The average temperature is .
Vegetation is wooded or forested steppe savannah and has mostly not been altered by human action, apart from some fields.
Many of the plants are adapted to drought.
Bird life is limited due to the long dry periods.

Conservation

Aiuaba Ecological Station is classed as IUCN protected area category Ia (strict nature reserve).
The purpose is to conserve nature and support scientific research.
The eared dove (Zenaida auriculata), which is threatened by professional hunters, seeks refuge in the unit during the breeding season.
The unit is of great ecological importance as the largest Caatinga biome conservation area fully covered in Caatinga trees, and plays an important role in preserving biological diversity.

In 2014 an environmentalist stated that the Aiuaba Ecological Station had been delivered to its fate. 
There had been no manager since December 2012, which was causing irreparable damage to the region's wildlife and savannah biome. 
Hunters were on a spree, killing birds and wild animals, as well as felling centuries-old native trees."
As of 2015 the Gameleira surveillance post had been closed for a year. The unit and its surroundings were threatened by local people who hunt and remove trees, although an environmental awareness program may be having some effect in reducing these activities.

Notes

Sources

2001 establishments in Brazil
Ecological stations of Brazil
Protected areas of Ceará
Protected areas established in 2001
Caatinga
Firebird Choice Zip Bi. The Firebird Choice Zip Bi is a German two-place, paraglider that was designed and produced by Firebird Sky Sports AG of Füssen. It is now out of production.

Design and development
The Choice Zip Bi was designed as a tandem glider for flight training and as such the Bi designation indicates "bi-place" or two seater.

The "Zip" name indicates that a zipper is included in the wing to reduce wing area when required.

The aircraft's  span wing has 54 cells, a wing area of  and an aspect ratio of 4.95:1. The pilot weight range is . The glider is DHV 1-2 Biplace certified.

Specifications (Choice Zip Bi)

References

Choice Zip Bi
Paragliders
Jerome Gavis. Jerome Gavis was a scientist and professor who served as the chairman of the chemical engineering department at Johns Hopkins University. He helped develop methods of separating solid waste components. He was a member of the National Academy of Sciences.  He earned a bachelor's degree in chemical engineering from New York University Tandon School of Engineering and a doctorate in chemistry from Cornell University. Gavis died on February 8, 2011, at the age of 82.

References

Polytechnic Institute of New York University alumni
Cornell University alumni
Members of the United States National Academy of Sciences
Year of birth missing
2011 deaths