omniomni/omni-engineering huggingface dataset:
Prasanna Alahakoon. Commodore Prasanna Alahakoon, USP, psc, SLN is a Sri Lanka naval officer and engineer. He is the current Deputy Superintendent of the SLN Dockyard and former Deputy Director Naval Projects and Plans as well as the Head of the Department of Electrical and Electronics of the General Sir John Kotelawala Defence University.

Educated at the prestiges Royal College Colombo, entered the University of Moratuwa to study engineering. However he left to join the Sri Lanka Navy without graduating and gained a BTech in engineering from the Naval College of Engineering, Lonavla (INS Shivaji) and specialized in electrical engineering at INS Valsura, Jamnagar. He is a graduate of the Naval War College, with a BSc in War Studies and holds an MBA in Management of Technology from the University of Moratuwa.

Alahakoon has served in the Engineering Branch of the Sri Lanka Navy serving as the Deputy Director Naval Projects and Plans at SLNS Parakrama the naval headquarter. He has also served as the Head of the Department of Electrical and Electronics of the General Sir John Kotelawala Defence University.

Commodore Alahakoon has been awarded the service medals Uttama Seva Padakkama, Sri Lanka Armed Services Long Service Medal and the campaign medal Eastern Humanitarian Operations Medal.

See also 
Sri Lanka Navy

References 

Sinhalese people
Sri Lankan engineers
Alumni of Royal College, Colombo
Naval War College alumni
Academic staff of the General Sir John Kotelawala Defence University
Living people
Year of birth missing (living people)
Sri Lankan commodores
National Academy of Engineering (disambiguation). The National Academy of Engineering most commonly refers to the academy in the United States.

National Academy of Engineering may also refer to:
 Australian Academy of Technology and Engineering
 Canadian Academy of Engineering
 Chinese Academy of Engineering
 Hong Kong Academy of Engineering Sciences
 Indian National Academy of Engineering
 National Academy of Engineering of Korea
 Royal Academy of Engineering of Spain
 Royal Swedish Academy of Engineering Sciences
 Royal Academy of Engineering (United Kingdom)
 Russian Academy of Engineering
 South African Academy of Engineering

See also
 French Academy of Technologies
 Norwegian Academy of Technological Sciences
Noshir Contractor. Noshir S. Contractor is an Indian-American network scientist who is the Jane S. & William J. White Professor of Behavioral Sciences in the McCormick School of Engineering & Applied Science, the School of Communication and the Kellogg School of Management and the director of the Science of Networks in Communities (SONIC) Research Group at Northwestern University. He is also the former President of the International Communication Association (ICA) and the current Executive Director of the Web Science Trust.

Education
Contractor completed his Doctor of Philosophy degree in communication at the University of Southern California in 1987. Prior to this he received a Master of Arts in Communication also from USC in 1986 and a Bachelor of Technology in Electrical Engineering from the Indian Institute of Technology Madras (Chennai) in 1983.

Career

Research
He has published more than 250 research papers in the area of social communication networks. He is known for the Multi-Theoretical Multi-Level (MTML) Framework with Peter Monge described in detail in Theories of Communication Networks. He was the host of the podcast "Untangling the Web". Professor Contractor has been at the forefront of three emerging interdisciplines: network science, computational social science and web science. He is investigating how social and knowledge networks form – and perform – in contexts including business, scientific communities, healthcare and space travel.  His research has been funded continuously for 25 years by the U.S. National Science Foundation with additional funding from the U.S. National Institutes of Health, NASA, DARPA, Army Research Laboratory and the Bill & Melinda Gates Foundation.

Recognition
In 2014, Professor Contractor was awarded the prestigious National Communication Association (NCA) Distinguished Scholar Award, honoring "a lifetime of scholarly achievement in the study of human communication." 
In 2015, Professor Contractor was honored with the title of International Communication Association (ICA) Fellow, in recognition of "distinguished scholarly contributions to the broad field of communication." 
In 2018, he was awarded a Distinguished Alumnus Award of the Indian Institute of Technology Madras.
In 2019, he was elected as a Fellow of the American Association for the Advancement of Science (AAAS)  and an ACM Fellow "for contributions to advances in computational social science, network science and web science". In 2022, he was named Fellow of the Network Science Society. In 2023, he was elected as a Fellow of the Academy of Management.

References

Living people
21st-century American psychologists
1959 births
Indian emigrants to the United States
American people of Indian descent
American people of Parsi descent
University of Southern California alumni
2019 fellows of the Association for Computing Machinery
Network scientists
20th-century American psychologists
Geoff Jameson. Geoffrey Brind Jameson  is a structural chemist and biologist at Massey University in Palmerston North, New Zealand. Jameson completed a PhD at the University of Canterbury in 1977. He is the director of the Centre for Structural Biology, and a crystallographer, using X-ray crystallography and NMR spectroscopy to determine the structure of materials.

Jameson was the 2011 recipient of the Marsden Medal from the New Zealand Association of Scientists.

References

University of Canterbury alumni
Georgetown University faculty
Academic staff of Massey University
New Zealand scientists
Crystallographers
Living people
Year of birth missing (living people)
New Zealand biochemists
Christopher Calladine. Christopher Reuben Calladine FRS FREng (born 19 January 1935) is a British engineer,  emeritus professor at University of Cambridge, and fellow of Peterhouse, Cambridge.

Works

References

External links

Members of the University of Cambridge Department of Engineering
Fellows of the Royal Society
Fellows of Peterhouse, Cambridge
Living people
Fellows of the Royal Academy of Engineering
1935 births
British structural engineers
Engineering professors at the University of Cambridge
Tomark Viper SD4. The Tomark Viper SD4 is a Slovak single–engine, all-metal, two-seat low wing monoplane with a fixed tricycle undercarriage and side-by-side seating for two people. The aircraft is built by Tomark s.r.o. of Prešov.

Design and development
Design work on the Viper began in 2004, with the first flight on 1 November 2006 and market introduction in 2008. It is intended for touring, training and glider towing.

The Viper is constructed mostly of metal, with aluminium skinning, using CNC machining. Composite materials are used for the tips of the flying surfaces, the fuselage upper decking, engine cowling and wheel fairings. The wings have constant chord and curved, slightly upswept tips; they are built around one main and one auxiliary spar. The short span ailerons move on piano-type hinges, with slotted flaps on the rest of the trailing edges. The low-mounted horizontal tail is also of constant chord apart from a cut-out for rudder movement; the starboard elevator carries a flight adjustable trim tab. Fin and rudder are straight-edged, but swept.

The standard Viper is powered by a 60 kW (81 hp) Rotax 912UL flat four engine but the more powerful 75 kW (100 hp) Rotax 912ULS is an option.  The forward fuselage is a monocoque, the rear a tube structure with an aluminium skin. The cockpit seats two in side-by-side configuration under a framed single piece canopy, with further transparencies in the fuselage immediately aft. The main undercarriage legs are cantilever springs. The mainwheels are faired and fitted with hydraulic brakes; the nosewheel is also faired and may, as an option, be steerable.  Other options include instrumentation, ballistic parachute and towing gear.

The aircraft received its EASA SD4 RTC restricted type certificate in March 2016. In the US it is an accepted light-sport aircraft.

Operational history

The first two production aircraft appeared at AERO Friedrichshafen in April 2007. AERO 2009 saw the first example of the Ultralight version and the announcement of the LSA variant It was originally aimed at French flying clubs but is now being marketed in the USA following certification in October 2010. US production at Winnsboro, Texas is under consideration.

By mid-2010 there were two Vipers registered in France and ten in Slovakia. By November 2010, 26 had been built.

Variants
UL
Ultralight aircraft version with maximum gross weight of  with a ballistic parachute, for the European market.
LSA
Light-sport aircraft version with maximum gross weight of  with a ballistic parachute, for the US market.

Specifications (UL version)

See also
Tomark Skyper

References

External links

Single-engined tractor aircraft
Viper
2000s Slovak ultralight aircraft
Low-wing aircraft
Aircraft first flown in 2006
X-99. The X-99 was designed by Niels Jeppesen and built by X-Yachts and first launched in 1985 with 605 built. 
Oak frame: Hull no 1 -to 259 and hull no 270, 263 and 267 
Steel frame introduced 1990 Hull no 260 and onwards except 270, 263, 267 
Alu. framed windows introduced 1991 (MK I) Hull no 288 and onwards except 290 and 310 
Volvo engine introduced 1991 (MK I) Hull no 288 and onwards except 290 and 310 
MK II introduced 1996 Hull no 500. From there on the MK II was sold with slightly different features as two windows, needle rudder bearing and a different water pass design.
The class was recognised by the International Sailing Federation from the late 1997 to November 2010 during this period the class was entitled to an official World Championship.

Events

World Championships

Gold Cup

External links
 International X-99 Class Association
 ISAF Microsite

Sailing yachts
Former classes of World Sailing
1980s sailboat type designs
Sailboat type designs by Niels Jeppesen
Sailboat types built by X-Yachts
JDK Enhancement Proposal. The JDK Enhancement Proposal (or JEP) is a process drafted by Oracle Corporation for collecting proposals for enhancements to the Java Development Kit and OpenJDK.

According to Oracle, JEPs "serve as the long-term Roadmap for JDK Release Projects and related efforts".

Relationships with the JCP
The JEP process is not intended to replace the Java Community Process, which is still required to approve changes in the Java API or language but rather to allow for OpenJDK committers to work more informally before becoming a formal Java Specification Request.

See also
 Java platform
 Java Community Process

References

External links
 JDK Enhancement Proposals list page
 Open source JDK project
William P. Sommers. William Paul "Bill" Sommers (July 22, 1933January 7, 2007) was an engineer and business executive of several companies, including Booz Allen Hamilton, Iameter, and SRI International.

Education
Sommers was born in Detroit in 1933. He held a Bachelor of Science, a Master of Science in Engineering, and a Ph.D. in engineering and aeronautical engineering, all from the University of Michigan. Sommers donated a significant amount to his alma mater.

Career
Sommers worked at Booz Allen Hamilton for 29 years. He was then executive vice president of Iameter, a health care cost containment company. From 1993 to 1998, he was the CEO of SRI International. While at SRI International, he focused on cost cutting to bring the organization back to profitability.

References

2007 deaths
SRI International people
Booz Allen Hamilton people
University of Michigan College of Engineering alumni
1933 births
Disulfur dioxide. Disulfur dioxide, dimeric sulfur monoxide or SO dimer is an oxide of sulfur with the formula S2O2. The solid is unstable with a lifetime of a few seconds at room temperature.

Structure
Disulfur dioxide adopts a cis planar structure with C2v symmetry. The S−O bond length is 145.8 pm, shorter than in sulfur monoxide. The S−S bond length is 202.45 pm and the O−S−S angle is 112.7°.  S2O2 has a dipole moment of 3.17 D. It is an asymmetric top molecule.

The electronic ground state is a singlet, unlike disulfur or dioxygen.

Formation
Sulfur monoxide (SO) converts to disulfur dioxide (S2O2) spontaneously and reversibly. So the substance can be generated by methods that produce sulfur monoxide. Disulfur dioxide has also been formed by an electric discharge in sulfur dioxide. Another laboratory procedure is to react oxygen atoms with carbonyl sulfide or carbon disulfide vapour.

Although most forms of elemental sulfur (S8 and other rings and chains) do not combine with SO2, atomic sulfur does so to form sulfur monoxide, which dimerizes:
S + SO2 → S2O2 ⇌ 2 SO

Disulfur dioxide is also produced upon a microwave discharge in sulfur dioxide diluted in helium. At a pressure of , five percent of the result is S2O2.

Disulfur dioxide is formed transiently when hydrogen sulfide and oxygen undergo flash photolysis.

A branched isomer isoelectronic to SO3, S=SO2, is believed to form during the thermal decomposition of cyclic vicinal alkyl thiosulfites.

Properties
The ionization energy of disulfur dioxide is .

Disulfur dioxide absorbs at 320–400 nm, as observed of the Venusian atmosphere, and is believed to have contributed to the greenhouse effect on that planet.

Reactions and decomposition
Although disulfur dioxide exists in equilibrium with sulfur monoxide, it also reacts with sulfur monoxide to form sulfur dioxide and disulfur monoxide.

Decomposition of S2O2 proceeds via the following disproportionation reaction:

Complexes
S2O2 can be a ligand with transition metals. It binds in the η2-S–S position with both sulfur atoms linked to the metal atom. This was first shown in 2003. The bis(trimethylphosphine) thiirane S-oxide complex of platinum, when heated in toluene at 110 °C loses ethylene, and forms a complex with S2O2: (Ph3P)2Pt(S2O2). Iridium atoms can also form a complex: cis-[(dppe)2IrS2]Cl with sodium periodate oxidizes to [(dppe)2IrS2O] and then to [(dppe)2IrS2O2], with dppe being 1,2-bis(diphenylphosphino)ethane. This substance has the S2O2 in a cis position.  The same conditions can make a trans complex, but this contains two separate SO radicals instead. The iridium complex can be decomposed with triphenylphosphine to form triphenylphosphine oxide and triphenylphosphine sulfide.

Anion
The  radical anion has been observed in the gas phase. It may adopt a trigonal shape akin to SO3.

Spectrum

Microwave

In the Solar System 
There is some evidence that disulfur dioxide may be a small component in the atmosphere of Venus, and that it may substantially contribute of the planet's severe greenhouse effect. It is not found in any substantive quantity in Earth's atmosphere.

References

Sulfur oxides
Sulfur(II) compounds
ES Gokin. ES Gokin (ES合金) is a joint collaboration toy line produced/manufactured by Hong Kong Action Toys and licensing/distributed by Japanese toy company Art Storm. The line consists of SD (Super Deformed) Die-Cast robots which mainly focuses on mechas. It was first introduced and released in the year 2009. Though the line is in the SD family, Action Toys/Art Storm has made each robot (released so far) differ in size to make it look realistic. One of the selling points of the figures/robots is the articulation design. Despite it having limited mobility, they are still considered rather flexible enough to evoke some of the memorable moves and attacks seen in each of the robots' respective series. Each of these figure/robots come with a stand and some of them even have neat featuring gimmicks implemented in them. Though the ES Gokin are SD's, it is targeted to a mature demographic.

Line-Up

Other Releases

Special Releases

External links
Official ES Gokin website (Japanese)

Japanese die-cast toys
2010s toys
Toy mecha
Toy companies established in 2009
Chinese companies established in 2009
2009 establishments in Hong Kong
Piezoluminescence. Piezoluminescence is a form of luminescence created by pressure upon certain solids.  This phenomenon is characterized by recombination processes involving electrons, holes and impurity ion centres. Some piezoelectric crystals give off a certain amount of piezoluminescence when under pressure. Irradiated salts, such as NaCl, KCl, KBr and polycrystalline chips of LiF (TLD-100), have been found to exhibit piezoluminescent properties.  It has also been discovered that ferroelectric polymers exhibit piezoluminescence upon the application of stress.

In the folk-literature surrounding psychedelic production, DMT, 5-MeO-DMT, and LSD have been reported to exhibit piezoluminescence.  As specifically noted in the book Acid Dreams, it is stated that Augustus Owsley Stanley III, one of the most prolific producers of LSD in the 1960s, observed piezoluminescence in the compound's purest form, an observation confirmed by Alexander Shulgin: "A totally pure salt, when dry and when shaken in the dark, will emit small flashes of white light."

See also
Mechanoluminescence
Triboluminescence

References 

Luminescence
Fuzzy architectural spatial analysis. Fuzzy architectural spatial analysis (FASA) (also fuzzy inference system (FIS) based architectural space analysis or fuzzy spatial analysis) is a spatial analysis method of analysing the spatial formation and architectural space intensity within any architectural organization.

Fuzzy architectural spatial analysis is used in architecture, interior design, urban planning and similar spatial design fields.

Overview
Fuzzy architectural spatial analysis was developed by Burcin Cem Arabacioglu (2010) from the architectural theories of space syntax and visibility graph analysis,  and is applied with the help of a fuzzy system with a Mamdami inference system based on fuzzy logic within any architectural space. Fuzzy architectural spatial analysis model analyses the space by considering the perceivable architectural element by their boundary and stress characteristics and intensity properties. The method is capable of taking all sensorial factors into account during analyses in conformably with the perception process of architectural space which is a multi-sensorial act.

References

Further reading
 
 .
 .
 
 
 .
 .

See also

Fuzzy logic
Spatial analysis
Space syntax
Spatial network analysis software
Visibility graph
Visibility graph analysis
Boundary problem (in spatial analysis)

Architectural theory
Environmental psychology
Fuzzy logic
Interior design
Urban planning
Natural Science Building (University of Bergen). The Natural Science Building (Norwegian: Realfagbygget) is located in Allégaten 41 at Nygårdshøyden in Bergen, right next to Nygårdsparken. The building is a part of the Faculty of Mathematics and Natural Sciences at the University of Bergen. The building was drawn by architect Harald Ramm Østgård, and built between 1963 and 1977. The Sciences Building is one of Norway's largest buildings with 47000 square meters usable area. The building is considered one of the best examples of brutalistic architecture in Bergen.

External links
 Docomomo - Realfagbygget (Norwegian)
 Landsverneplan for Kunnskapsdepartementet (Norwegian)

University of Bergen
Dr. T. Thimmaiah Institute of Technology. Dr. T. Thimmaiah Institute of Technology (Dr.TTIT) is a college in Kolar Gold Fields, Karnataka, India, under the VTU Visvesvaraya Technological University recognized by the Government of Karnataka and approved by the All India Council of Technical Education AICTE, New Delhi.
Formerly Known as Golden Valley Institute of Technology.

The college
The college provides professional education in engineering streams such as Computer science, Electrical & Electronics, Mechanical, Mining and Civil.

Campus and location
The campus is set in a  area. The campus has facilities like library and WiFi. The college has "The UFO" outlet where all varieties of food is available for the students at greater standards.

Admission procedure and eligibility
Students are admitted on merit, according to the directives of the Government of Karnataka, both to the Government Quota and the Management Quota.

Eligibility for admission to B.E. courses is a pass in 10+2 class or equivalent with a minimum 45% in Science group. Mathematics and Physics are compulsory Science subjects. Any other Science subjects like Chemistry can be the Third Science subjects.

Undergraduate programs
 Mechanical Engineering 
 Mining Engineering 
 Computer Science and Engineering
 Electronics and Communication Engineering
 Electrical and Electronics Engineering
 Civil Engineering

Postgraduate Programs
Machine Design
Digital Communications and Networking

References

All India Council for Technical Education
Affiliates of Visvesvaraya Technological University
Engineering colleges in Karnataka
Universities and colleges in Kolar district
Mariner Aircraft Mariner. The Mariner Aircraft Mariner is an American ultralight amphibious flying boat that was designed by Larry Seifert and produced by Mariner Aircraft, starting in 1989. The aircraft was supplied as a kit for amateur construction.

Design and development
The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of  plus floats. In its monoplane single seat version the aircraft has a standard empty weight of . Many were registered as amateur-builts rather than ultralights. It features a multiple wing arrangement, a single-seat, open cockpit, re-positionable conventional landing gear and a single engine in pusher configuration.

The aircraft is made from sheet aluminum, aluminum tubing and aircraft fabric, with a plywood hull. The aircraft was sold in three different models. The first is a biplane design, with a pusher engine mounted between the wings. Engines used include the  Rotax 447,  Rotax 503 and  Rotax 582 and  Subaru EA-81. The top wing of the biplane was removed and the lower wing increased in span to create a low-wing monoplane version, available in single and two seat versions. The final model mounts the top wing only in parasol wing configuration and features two seats in tandem.

The company went out of business in the early 1990s after only a few years of production.

Variants
Mariner biplane
Original single seat biplane model
Mariner monoplane
Second model with an increased span lower wing and the top wing removed. Available in single and two-seat models.
Mariner parasol
Third model with the top wing retained and the lower wing removed and two seats in tandem.

Specifications (Mariner monoplane)

References

1980s United States ultralight aircraft
Homebuilt aircraft
Single-engined pusher aircraft
John Iley. John Alastair Iley (born 29 September 1967) is a British motor racing aerodynamicist, who was formerly the technical director for the Caterham F1 team.

Career 
After graduating from Lanchester Polytechnic, Coventry, while studying at Imperial College, London, he worked on wind tunnel testing and data analysis of a sports prototypes.

Hired by Brun Technics on graduation, he worked on both the EuroBrun F1 team and the 1990 design of the Judd-powered Brun C91 sports car. In 1991 he was hired as aerodynamicist on the Allard J2X-C sports car, and subsequently worked on Indycar development for Newman-Haas, Lola Cars and Swift Engineering.

In 1995 he moved to Formula1 with Jordan Grand Prix as an aerodynamicist, becoming chief aerodynamicist in 1998. In 2002 he followed Mike Gascoyne to Renault F1, and then joined Ferrari in 2004 as chief aerodynamicist.

He joined McLaren Racing in 2010, but was placed on gardening leave in late 2011, ahead of his joining with Gascoyne again at Caterham F1 as performance director in 2012.

Following his career in F1, Iley is the Director of Iley Design.

References

External links
Bio at GrandPrix.com

1967 births
Living people
Alumni of Coventry University
Alumni of Imperial College London
Aerodynamicists
Formula One designers
Ferrari people
McLaren people