omniomni/omni-engineering huggingface dataset:
Bakki shower. Bakki showers are a type of trickle filtration.

Origins 

First developed by the Momotaro Japanese koi farm, the bakki shower attempts to simulate natures way of filtering water.  Similar to a mountain stream where water cascades over rocks.

Biofilms and algae grow on the rocks and feed on the nutrients in the stream, essentially filtering the water.  In the case of the Bakki shower, ceramic is placed in trays and the water pumped to the top of the filter and trickles through the media, eventually flowing back to the pond.

Momotaro Koi Farms developed the bakki shower with stainless steel trays.  Since that time many "DIY bakki showers" have been designed with variations on them.  Plastic and fiberglass boxes or crates have been used with success.

In all its simplicity there is a lot of higher chemistry going on between the bio film and the water column.  The biochemistry is better explained in this book : Biology of the nitrogen cycle By Hermann Bothe, Stuart John Ferguson, William Edward Newton

Advantages 
The advantages of this type of filtration are:
Conversion of nitrogenous wastes
Off gassing of CO2 maintains pH
Oxygen is reintroduced

This method of off-gassing and aeration is used widely in aquaculture.

Filter media choices 

The choices of Filter media vary greatly. Each filter media has different properties and therefore different performance.  Here are some photos of different types:

Notes

References 
 Aquaculture Network Information
 Biology of the nitrogen cycle By Hermann Bothe, Stuart John Ferguson, William Edward Newton

Waste treatment technology
Fountains
Gardening aids
Aquincum Institute of Technology. Aquincum Institute of Technology (AIT) is a study abroad opportunity for North American undergraduates in Budapest, Hungary. AIT offers undergraduate programs in computer science, software engineering, and information technology. Established in 2007, the program was created by the businessman Gábor Bojár, founder of Graphisoft. After Bojár sold Graphisoft, he used a majority of the profit from this sale to found AIT in an effort to "Invest in People.". The first official semester was Spring 2011. Each semester, approximately 30-50 North American students study at AIT.

A similar program for mathematics students in Budapest is the Budapest Semesters in Mathematics Program.

Scientific advisory board
 László Babai
 Albert-László Barabási
 Péter Csermely
 András Falus
 Daniel L. Goroff
 Anthony Knerr
 Norbert Kroó
 László Lovász
 Ernő Rubik
 Charles Simonyi

Notes

References 
"AIT-Budapest: Aquincum Institute of Technology," http://www.ait-budapest.com/.

Universities in Budapest
Korkut Uygun. Korkut Uygun is a Turkish chemical engineer and a medical researcher.

Career
Uygun received his BSc and MSc from Boğaziçi University in Istanbul, Turkey, with Dr. Ugur Akman as his advisor on both his MSc and BSc theses. He received Ph.D. in chemical engineering from Wayne State University in 2004. After working for 2 years as a post-doctoral researcher in the research laboratory of the department where he received his Ph.D., in 2006 he became a research associate in the lab of Maish Yarmush at the "Center for Engineering in Medicine" of the Massachusetts General Hospital, where he became the leader of the Organ Engineering Group. In 2008, he was promoted to instructor in surgery (Bioengineering) at Harvard Medical School. In 2011 he was promoted to Assistant Professor in Surgery at Harvard Medical School, before being promoted to Associate Professor a few years later.

Work
A major research objective of Uygun is to enhance utilization of discarded donor organs in order to either increase the supply of transplantable organs, utilize untransplantable organs as cell sources for cell transplantation or bioartificial organ substitutes, such as bioartificial livers, and if the organ proves completely unresuscitatable, utilize them as biocompatible scaffolds for tissue engineering.
In 2010, a team led by Uygun in the Center for Engineering in Medicine at Massachusetts General Hospital developed a technique that someday may allow growth of transplantable replacement livers. Uygun's technique developed functional, transplantable rat liver grafts. The study was published in Nature Medicine. Uygun highlighted the significance of his work by saying, "As far as we know, a transplantable liver graft has never been constructed in a laboratory setting before". A novel technique was also used to "reintroduce hepatocytes, the cells that carry out most of the liver’’s primary functions, into the decellularized matrix". The study was reported as "the first steps in growing working livers". It is also the basis of a patent application.

Research Awards
In 2008, Uygun was awarded a Career Award by NIDDK at NIH "Computer-Aided Development of a Liver Organ Culture System".

In 2009, Uygun was awarded by the National Science Foundation for a research project, "Liver Reengineering". which has funded the studies for whole organ decellularization and recellularization.

Uygun is also a Co-investigator and collaborator on several projects with Martin Yarmush and Mehmet Toner

Personal life
Uygun is married to Başak E. Saygılı, who is also a medical researcher and faculty at Harvard Medical School and Center for Engineering in Medicine; the couple has a daughter called Elif Naz.

References

External links 
 Center for Engineering in Medicine Center for Engineering in Medicine
 list of publications (PubMed)

1975 births
Living people
Wayne State University alumni
21st-century Turkish scientists
Turkish medical researchers
Turkish chemical engineers
Turkish biochemists
Turkish bioengineers
Harvard Medical School faculty
Aurecon. Aurecon Group Pty Ltd  is an Australian engineering, management, design, planning, project management, consulting and advisory company based in Docklands, Victoria, with operations in Australia, New Zealand and Southeast Asia.

History 
Formed through the merger of three engineering consultancies, Africon, Connell Wagner and Ninham Shand. Aurecon has over 6,500 staff members. The company operates in 28 countries across Africa, Asia-Pacific and the Middle East.

Africon was formed in 1935. The original business, Van Wyk en Louw Consulting, grew as one of the 'top 5' engineering consulting firms under apartheid, winning lucrative government contracts including management of 'townships' before changing its name to Africon during South Africa's transformation to democracy. At the time of the merger, Africon was ranked amongst the world’s top 200 international design firms and was South Africa’s largest engineering company. The organisation operated in both the public and private sectors within the fields of transportation, property, municipal services, energy and mining.

Connell Wagner was one of Asia Pacific’s largest multi-disciplinary engineering consultancies, with a history spanning more than 75 years. The firm provided a broad range of professional technical services across several market sectors, namely buildings, industrial, transportation, urban development, water, international development, environment, energy, telecommunications and defence.

Established in 1935, Ninham Shand was one of South Africa’s leading, privately owned companies of consulting engineers and environmental scientists. The organisation offered consulting services in areas including water resources and supply, heavy engineering, purification, infrastructure services, structures and buildings, transportation and roads, and environmental science.

In October 2019, Aurecon decided to demerge its African business.

References

External links
Aurecon Official Website

Australian companies established in 2009
Construction and civil engineering companies of Australia
Construction and civil engineering companies established in 2009
International engineering consulting firms
Engineering consulting firms of Australia
Tallinn University of Applied Sciences. TTK University of Applied Sciences (; TTK) is an higher education institution in Tallinn, Estonia, founded in 1992. It provides professional higher education and applied research in the fields of technology, production, civil engineering, logistics, economics, and welfare. TTK UAS is the largest university of applied sciences in Estonia, currently educating about 3000 students.

The university has 6 institutes: the Institute of Architecture, Institute of Engineering and Circular Economy, Institute of Civil Engineering, Institute of Logistics, Institute of Technology and Institute of Service Economy.

References

External links
 
 

Universities and colleges in Estonia
Education in Tallinn
1915 establishments in Estonia
Universities and colleges established in 1915
1992 establishments in Estonia
Educational institutions established in 1992
Johnson Matthey Technology Review. Johnson Matthey Technology Review, known as Platinum Metals Review before 2014, is a quarterly, open access, peer-reviewed scientific journal publishing reports on scientific research on the platinum group metals and related industrial developments.

History
The journal was established in 1957 under the name Platinum Metals Review and was published by Johnson Matthey and Co., with the support of the Rustenburg Platinum Mines. This was done in the hopes of increasing the availability of information on the properties of Platinum and to link both academic and industrial research with "the aims of finding practical solutions to the material problems of modern technology (McDonald/Hunt)". From the July 2004 issue onward, it was published in electronic format only. In 2014 the journal was relaunched as Johnson Matthey Technology Review.

Aims and scope
The journal included reviews of research, books, and academic conferences, as well as primary results in the form of brief reports. It also reviewed what it considered to be notable aspects of patents and relevant scientific literature. Occasionally articles on the history, geological occurrences, and exploitation of platinum group metals were also published.

While between 2016 and October 2022 the journals content was published as  CC BY-NC-ND 4.0, the journal is now published under CC-BY 4.0 from January 2023 onward, in accordance with the definition of open access given by the Budapest Open Access Initiative.

Abstracting and indexing
Currently, Johnson Matthey Technology Review was abstracted and indexed by:

 Chemical Abstracts Service
 CAS SciFinder
 Web of Science
 Science Citation Index Expanded
 Journal Citation Reports
 ProQuest Current Contents
 ProQuest SciSearch
 SciTech Premium Collection
 Technology Research Database
 Scopus
 CNKI
 EBSCO
 	
While it was still known as Platinum Metals Review, it was abstracted and indexed by:

 Chemical Abstracts Service
 Chemical Engineering and Biotechnology Abstracts
 Compendex
 Corrosion Abstracts
 Current Contents/Physical, Chemical & Earth Sciences
 Environment Abstracts
 Metals Abstracts/METADEX
 Metal Finishing Abstracts
 Science Citation Index Expanded
 Scopus	
 World Textile Abstracts

References

External links 
 

Materials science journals
Academic journals established in 1957
Quarterly journals
English-language journals
journals
Chemistry journals
Geology journals
Engineering journals
Metallurgical processes
Giotto (disambiguation). Giotto may refer to:

Giotto di Bondone (1267–1337), Italian painter
Giotto's Campanile, Florence
Giotto Bizzarrini (1926–2023), Italian automobile engineer 
Giotto Griffiths (1864–1938), Welsh rugby player
Giotto (spacecraft), a European Space Agency probe that observed Halley's comet
Ferrero Giotto, a brand of round wafer-based snacks
Giotto, a Linux bootable floppy disk
Giotto (work-place integrity test), a psychological test for employers to assess personal integrity
Giotto, a fictional character in the manga and anime series Katekyō Hitman Reborn!
7367 Giotto, a main-belt asteroid
 Giotto (crater), a crater on Mercury
 Giotto is a time-triggered programming language which is included in Giotto system (a programming language, a compiler, a run time system)
Rhein Flugzeugbau RW 3 Multoplan. The Rhein Flugzeugbau RW 3 Multoplan is a two-seat light pusher configuration aircraft that was produced in small numbers by Rhein Flugzeugbau GmbH between 1958 and 1961.

Design
The prototype RW 3 Multoplan was designed by Hanno Fischer who founded Rhein-West-Flug Fischer in 1955 in order to test the aerodynamic principles that he propounded. These were first tested in the Fibo 2a light aircraft. This was followed by the first RW 3A Multoplan D-EJAS which was a tandem two-seat light aircraft of mixed construction with a high aspect ratio wing, retractable tricycle undercarriage and a T-tail. The 65 h.p. Porsche 678/0 engine was buried in the centre fuselage and drove a pusher propeller mounted in a vertical slot between the fin and rudder. The two occupants were provided with dual controls and were accommodated beneath a long blister canopy. A second RW 3A-V2 was built and tested.

Development and production

Fischer granted a production licence to Rhein Flugzeugbau GmbH (RFB) who built an initial batch of Multoplans at their factory at Krefeld-Uerdingen. The first production aircraft was flown on 8 February 1958 and this and all subsequent machines were designated RW 3.P75 to identify the Porsche 75 h.p. 678/4 engine which was fitted. RFB built a total of 22 Multoplans and abandoned a further three when production was discontinued in 1961.  One further example was built by an amateur constructor.

RFB also built two examples of a higher-powered version, the RW 3C-90 Passat and on these and all other RW 3s, they offered optional wingtip extension panels which enabled the Multoplan to be flown as a power-assisted sailplane. The extensions increased the span from 34 ft 9 ins to 50 ft 6 in.

Operational history

The Multoplan was mainly operated by private pilot owners. Two examples remained operational on the German civil aircraft register in 2009 and two aircraft were exhibited in German aviation museums including D-EIFF displayed in the Deutsches Technikmuseum in the centre of Berlin.

Variants
(per Simpson)
 RW.3-A  two prototypes powered by  Porsche 678/0 engine.
 RW.3-A2 extended wing motor-glider with  span wings.
 RW.3-A3 standard production light aircraft version with  span wings and auxiliary fuel tanks at the wing-tips.
 RW.3-P75  22 production aircraft, and one amateur-built, powered by  Porsche 678/4 engine.
 RW.3-B  glider version with wings extended to . Aspect ratio 12. 
 RW 3C-90 Passat  two aircraft retrofitted with a  engine, then a  Lycoming O-320 with a Hartzell constant speed propeller.

Specifications (RW 3.P75)

Notes

References

 
 
 
 

1950s German civil utility aircraft
Single-engined pusher aircraft
Mid-engined aircraft
RW-003
Mid-wing aircraft
T-tail aircraft
Aircraft first flown in 1956

de:Rheinflug RW-3
LanSlide Gaming PCs. LanSlide Gaming PCs was a privately owned, internet-based, gaming computer company located in Schenectady, New York. Specializing in high end portable gaming desktops, all of the company's computers were based around portable designs and marketed towards LAN party enthusiasts.

History
LanSlide Gaming PCs, LLC was founded in 2005 by a group of gamers tired of moving large gaming desktops to LAN parties. The company focused on computers designed to be portable and sells a wide range of desktop gaming computers, all of which are built into cases with carrying handles for ease of transport. Each computer came with a special backpack to hold everything needed to run a desktop computer with the exception of the computer case. In addition to portable computers, LanSlide Gaming PCs also sold a line of computers designed for 3D gaming.

Products
Small Form Factor Computers: 
Earthquake - Entry level gaming desktop
Avalanche - Mid-range gaming desktop
Armageddon - High-end gaming desktop
Mid-Tower Computers: 
Monsoon - Entry level gaming desktop
Cyclone - Mid-range gaming desktop
Hurricane - High-end gaming desktop
3D Gaming Computers:
Sandstorm - Mid-range 3D gaming system
Whirlwind - High-end 3D gaming system

Free, Public Computer Support Service
In August, 2010 LaSlide Gaming PCs launched the "Absolutely Free Computer Help Page", which provided free computer support to the general public, regardless of their status as a customer of the company. The service allowed users to submit gaming computer related questions and get answers from live people within approximately 48 hours. While the service was focused on questions about building, buying, and fixing gaming computers, it was completely open-ended, allowing users to ask any computer related question and get an answer.

PC Pack
LaSlide Gaming PCs holds patent pending status on a special backpack intended to make it easier to move a gaming set-up in one trip and avoid dropping or damaging desktop components during transit. The backpack is designed to hold and protect up to a 22″ widescreen monitor, extra-long gaming keyboard, mouse, headphones, surge protector, cables, and other miscellaneous paraphernalia need to run a desktop computer.

Noteworthy Public Appearances
 PaxEast 2010: Mitchell Shuster, one of the founders of the company, appeared on a panel called "The Future of PC Gaming" at the first annual PAX-East convention, alongside John Abercrombie, lead programmer of Irrational Games and Joe Kreiner of Terminal Reality, where he spoke on the future prospects of the gaming PC industry.

See also
List of Computer System Manufacturers

References

External links
 Official LanSlide Gaming PCs Website

2005 establishments in New York (state)
2010s disestablishments in New York (state)
2010s disestablishments in the United States
American companies established in 2005
Computer companies established in 2005
Defunct computer companies of the United States
Defunct computer companies based in New York (state)
Defunct computer hardware companies
Defunct computer systems companies
Home computer hardware companies
1,2-Dichloropropane. 1,2-Dichloropropane is an organic compound classified as a chlorocarbon.  It is a colorless, flammable liquid with a sweet odor. it is obtained as a byproduct of the production of epichlorohydrin, which is produced on a large scale.

Uses
1,2-Dichloropropane is an intermediate in the production of perchloroethylene and other chlorinated chemicals. It was once used as a soil fumigant, chemical intermediate, as well as an industrial solvent and was found in paint strippers, varnishes, and furniture finish removers but some of these uses have been discontinued.

Carcinogenity
Following several cases of bile duct cancer among Japanese printing firm employees, an investigation by the Japanese Ministry of Health, Labour and Welfare concluded in March 2013 that these cases were likely due to the use of cleaning agents containing 1,2-dichloropropane. Thus, there is reasonable evidence that 1,2-dichloropropane may be a carcinogen.

Data from animal studies show tumor growth in the liver and mammary glands. Further animal studies involving inhalation toxicity data has caused the National Institute for Occupational Safety and Health to classify 1,2-dichloropropane as a carcinogen and IDLH.

References

Chloroalkanes
Sweet-smelling chemicals
IARC Group 1 carcinogens
Algorithmic complexity attack. An algorithmic complexity attack (ACA) is a form of attack in which an attacker sends a pattern of requests to a computer system that triggers the worst-case performance of the algorithms it uses. In turn, this may exhaust the resources the system uses. Examples of such attacks include ReDOS, zip bombs and exponential entity expansion attacks.

References

Related works 
 
 
 Vahidi, Ardalan. “Crowdsourcing Phase and Timing of Pre-Timed Traffic Signals in the Presence of Queues: Algorithms and Back-End System Architecture.” Ieeexplore, 1 Nov. 2019, https://ieeexplore.ieee.org/abstract/document/7323843.  
 Kiner, Emil, and Satya Konduru. “How Google Cloud Blocked the Largest Layer 7 DDoS Attack yet, 46 Million Rps.” Google Cloud Blog, 18 Aug. 2022, cloud.google.com/blog/products/identity-security/how-google-cloud-blocked-largest-layer-7-ddos-attack-at-46-million-rps.
Lodi Rules. "Lodi Rules" is the short name for the Lodi Winegrape Commission's "Lodi Rules for Sustainable Winegrowing", a set of guidelines used by winegrowers throughout the Lodi winegrowing region of California to ensure that their products are grown in a sustainable manner. The rules are intended to lead to quantifiable improvements in the health of the adjacent ecosystem as well as the wine quality. Products grown in accordance with the rules are certified by the non-profit organization Protected Harvest and carry a label informing retailers and consumers of the grower's compliance.

The Lodi Rules program includes the Pesticide Environmental Assessment System (PEAS)., which measures the environmental impact of pesticides, organic or synthetic. The vineyard must not exceed a maximum number of pesticide impact points. Certification is assessed annually.

References

Viticulture
Acta Materialia. Acta Materialia is a peer-reviewed scientific journal published twenty times per year by Elsevier on behalf of Acta Materialia Inc. The editor-in-chief is Gregory S. Rohrer. The journal covers research on all aspects of materials science and publishes original papers and commissioned reviews called Overviews.

History
The journal was established in 1953 as Acta Metallurgica and renamed to Acta Metallurgica et Materialia in 1990, before obtaining its current name in 1996. Since 1956, it was published by Pergamon Press, with the imprint being retained for some time after the acquisition by Elsevier. It incorporates Nanostructured Materials that was published independently from 1992 to 1999. Scripta Materialia was established in 1967 as a companion journal, publishing rapid communications as well as opinion articles called Viewpoints.

Abstracting and indexing 
The journal is abstracted and indexed in:

According to the Journal Citation Reports, the journal has a 2023 impact factor of 8.3.

See also
Physical metallurgy

References

External links 
 

Biweekly journals
Elsevier academic journals
English-language journals
Materials science journals
Academic journals established in 1953
Academic journals established in 1992
Publications disestablished in 1999
KSU Gazal-1. The KSU Gazal-1 (Arabic for ‘gazelle') is a sport utility vehicle developed by students at King Saud University and technicians from Magna Steyr. The mass production began on 14 June 2010 under King Abdullah Bin Abdulaziz of Saudi Arabia. The managers of the project are Dr. Abdul Rahman Alahmari and Dr. Saed Darweesh. Dr. Khalid Alsaleh, who registered patents for the vehicle, mentioned in a TV interview that environment specific tests such as camel collision tolerance were conducted. 

The car is the fourth home-made Arab automobile, after the Egyptian Ramses, the Moroccan Laraki and the Libyan Saroukh el-Jamahiriya. With a projected output of 20,000 for 2011, the Gazal-1 was the first Arab vehicle to be mass-produced in the Arab World. 

The KSU Gazal-1 is based on the long wheelbase Mercedes-Benz G-Class and was designed by Studiotorino. Most of the automotive parts are produced by Magna Steyr in Austria.

References

External links 
 Official Website 
 KSU Website
 Top Gear Website

Cars of Saudi Arabia
King Saud University
Magna International

Cars introduced in 2010