omniomni/omni-engineering huggingface dataset:
Journal of Engineering Mechanics. The Journal of Engineering Mechanics  is a peer-reviewed scientific journal published by the American Society of Civil Engineers, and covers activity and development in the field of applied mechanics as it relates to civil engineering. Published papers typically describe the development and implementation of new analytical models, innovative numerical methods, and novel experimental methods and results.

Indexes
The journal is indexed in Google Scholar, Baidu, Elsevier (Ei Compendex), Clarivate Analytics (Web of Science), ProQuest, Civil engineering database, TRDI, OCLC (WorldCat), IET/INSPEC, Crossref, Scopus, and EBSCOHost.

References

External links

 ASCE Library

Civil engineering journals
American Society of Civil Engineers academic journals
Academic journals established in 1875
Niki Lightning. The Niki Lightning is a fully enclosed two-seater tricycle autogyro of composite construction, designed and built by Niki Rotor Aviation in Bulgaria. It was introduced in 2009

Design and development
The Lightning's cockpit pod accommodates a pilot and passenger in tandem. The main rotor is two-bladed, with a pre-rotator. Unconventionally the tail boom is mounted though the centre of the propeller shaft. The boom may be unbolted and removed to aid access to the engine and prop.

There is a choice of two very compact D-Motor engines (both liquid-cooled horizontally-opposed side-valve four-strokes): either the   4-cylinder LF26  or the  6-cylinder LF39. The  engine is sited behind the cockpit, driving a 3- or 4-bladed ground-adjustable pusher propeller which is coaxial with the tail boom. The D-Motor engines are direct-drive units redlined at 3,000 rpm. The engines are sited beneath the thrust line of the propeller; instead of using a gearbox, the Lightning uses a multi-belt-drive reduction system of about 3:2 ratio, resulting in an efficient propeller speed of up to 2,000 rpm. This arrangement avoids the necessity of a tailboom beneath the propeller, giving a smoother empenage and reducing drag. Beneath the tail-fin a spring-steel tailskid is fitted, to inhibit propeller strikes.

Consuming some  of avgas per hour, the autogyro has an endurance of 4 hours, with 30 minutes reserve.  Its cruise speed of  gives the autogyro a range of over . It has a take-off roll of , and a landing roll of . The Lightning may be flown with its side doors removed.

An alternative engine for the Niki Lightning is the Rotax 914UL (but the normal Rotax gearbox would be dispensed with in favour of the drive belts).

Specifications (D-Motor LF39)

See also
 AutoGyro Calidus
 Niki Kallithea
 RotorSport UK Calidus
 Sport Copter Lightning

References

External links 
 

Lightning
Single-engined pusher autogyros
2000s Bulgarian sport aircraft
Emilio Sacristan Rock. Emilio Sacristan Rock (born November 7, 1965) is a Mexican researcher, inventor and businessman in the field of medical technology. He is professor of electrical and biomedical engineering, Director and Founder of the National Center for Medical Instrumentation and Imaging Research, CI3M, at the UAM-Iztapalapa, Mexico City, and Mexican National Researcher level III. He holds a B.S. (1987) in EE and M.S. (1990) and Ph.D. (1993) degrees in biomedical engineering from Worcester Polytechnic Institute. He has been research assistant professor at WPI (1993–1995), associate researcher at University of Massachusetts Medical School (1988-1995), and visiting professor at Yale School of Medicine (2001–2002) and Stanford University (2009). His research focuses on instrumentation for anesthesia and critical care as well as Magnetic Resonance Imaging, and is author of over 70 research articles and 22 international patents.
Sacristan is also an entrepreneur seeking to translate medical innovations to the market, having been founder/CEO/CSO of Enviva Corp. (MA), Innovamedica (Mexico), Abdeo Medical (Mexico and CA), Critical Perfusion Inc. (CA), and is Chief Science Officer of Nervive, Inc.(OH). He is the Inventor of the VITACOR UVAD artificial heart, the aspiration condenser for anesthesia, the gastric impedance monitor for critical care, the VITALFLOW magnetic stimulator for stroke therapy, among other medical devices. He is an Endeavor entrepreneur since 2004 and he was honored as American Express Entrepreneur of the Year 2006.

Rock won the National Prize for Arts and Sciences of Mexico in 2017.

References 

Living people
1965 births
Place of birth missing (living people)
Academic staff of Universidad Autónoma Metropolitana
Mexican inventors
Mexican physiologists
Mexican company founders
Worcester Polytechnic Institute alumni
UMass Chan Medical School faculty
Yale School of Medicine faculty
Stanford University faculty
21st-century inventors
Kyll Viaduct. The Kyll Viaduct () has a span of  and is the largest arch bridge in Germany that is made entirely of reinforced concrete and prestressed concrete.

The bridge carries the A 60 motorway over the valley of the Kyll in the Eifel mountains near Wilsecker between the junctions of Bitburg and Badem, and was built from 1995 to 1999. It has a total length of 645 metres and a maximum height of 93 metres.

See also 
 List of bridges in Germany

External links 
 

Arch bridges in Germany
Road bridges in Germany
Eifel
1990s architecture
Dualite. Dualite is a very rare and complex mineral of the eudialyte group, its complexity being expressed in its formula . The formula is simplified as it does not show the presence of cyclic silicate groups.
The name of the mineral comes from its dual nature: zircono- and titanosilicate at once. Dualite has two modules in its structure: alluaivite one and eudialyte one. After alluaivite and labyrinthite it stands for third representative of the eudialyte group with essential titanium.

Occurrence and association
Dualite was found in peralkaline pegmatoid rock at Mt Alluaiv, Lovozero massif, Kola Peninsula Russia. It associates with aegirine, alkaline amphibole, cancrinite, eudialyte, K-Na feldspar, lamprophyllite, lomonosovite, lovozerite, nepheline, sodalite, sphalerite, villiaumite, and vuonnemite.

Notes on chemistry
Dualite admixtures not mentioned in the formula are especially that of niobium, with lesser amount of aluminium, barium, potassium, neodymium and lanthanum. Dualite is chemically similar to labyrinthite and rastsvetaevite.

Notes on crystal structure
Dualite has doubled c value when compared to ordinary eudialyte. Its structural framework has 24 layers.

References

Further reading
 Johnsen, O., Ferraris, G., Gault, R.A., Grice, D.G., Kampf, A.R., and Pekov, I.V., 2003. The nomenclature of eudialyte-group minerals. The Canadian Mineralogist 41, 785-794

Cyclosilicates
Sodium minerals
Calcium minerals
Zirconium minerals
Titanium minerals
Manganese minerals
Trigonal minerals
Minerals in space group 160
Labyrinthite. Labyrinthite is a very rare mineral of the eudialyte group. When compared to other species in the group, its structure is extremely complex – with over 100 sites and about 800 cations and anions – hence its name, with its complexity expressed in its chemical formula . The formula is simplified as it does not show the presence of cyclic silicate groups. Complexity of the structure results in symmetry lowering (likely due to ordering of cations) from the typical centrosymmetrical group to R3 space group. Other eudialyte-group representatives with such symmetry lowering include aqualite, oneillite, raslakite, voronkovite. Labyrinthite is the second dual-nature (both zircono- and titanosilicate) representative of the group after dualite and third with essential titanium after dualite and alluaivite.

Occurrence and association
Labyrinthite was discovered in hyperagpaitic (ultra-alkaline) pegmatite at Mt. Nyorkpakhk, Khibiny massif, Kola Peninsula, Russia, where it represents a late-stage mineral. It coexists with aegirine, alkaline amphibole, lamprophyllite, lomonosovite, potassium feldspar, pectolite, sodalite, and villiaumite.

Notes on chemistry
Beside that given in the formula, other elements substituting the main ones in labyrinthite are manganese, fluorine, and cerium.

Notes on crystal structure
Labyrinthite is two-modular – its structure contains alluaivite-like and eudialyte-like module. The framework of labyrinthite is 24-layered. It also characterize in doubled c unit cell parameter.

References

Further reading
 Johnsen, O., Ferraris, G., Gault, R.A., Grice, D.G., Kampf, A.R., and Pekov, I.V., 2003. The nomenclature of eudialyte-group minerals. The Canadian Mineralogist 41, 785–794

Cyclosilicates
Sodium minerals
Calcium minerals
Iron minerals
Zirconium minerals
Titanium minerals
Trigonal minerals
Minerals in space group 146
National Buildings Organisation. National Buildings Organisation (NBO) is an autonomous organisation of the Indian Government established in 1954. The organisation is responsible for collecting, collating, validating, analysing, disseminating and publishing housing and building construction statistics. NBO is also responsible for organising training programmes for staff of Indian state governments working in similar fields. In addition, the NBO is involved in a documentation centre for statistics relating to housing, poverty and slums.

References

1954 establishments in India
Government agencies of India
Government agencies established in 1954
Unique set size. In computing, unique set size (USS) is the portion of main memory (RAM) occupied by a process which is guaranteed to be private to that process. The unshared memory of a process is reported as USS.

This concept is used for software running under the Linux operating system. It was proposed by Matt Mackall because of the complications that arose when trying to count the "real memory" used by a process. The concepts of resident set size or virtual memory size (VmSize) weren't helping developers who tried to know how much memory their programs were using.

See also 
 Proportional set size
 Resident set size

References

Memory management
Shri Labhubhai Trivedi Institute of Engineering & Technology, Rajkot. The Shri Labhubhai Trivedi Institute of Engineering and Technology (SLTIET) is a technical institute located in Rajkot, India.

It was established in 2010. It is accredited by AICTE, and it is affiliated with the GTU.

The school is managed by Mahatma Gandhi Charitable Trust and offers Computer Science, Mechanical, Electrical and Civil Engineering degrees.

References

External links
 

Education in Rajkot
Engineering colleges in Gujarat
Proportional set size. In computing, proportional set size (PSS) is the portion of main memory (RAM) occupied by a process and is composed by the private memory of that process plus the proportion of shared memory with one or more other processes. Unshared memory including the proportion of shared memory is reported as the PSS.

Example:
 Process A has 50 KiB of unshared memory
 Process B has 300 KiB of unshared memory
 Both process A and process B have 100 KiB of the same shared memory region

Since the PSS is defined as the sum of the unshared memory of a process and the proportion of memory shared with other processes, the PSS for these two processes are as follows:
 PSS of process A = 50 KiB + (100 KiB / 2) = 100 KiB
 PSS of process B = 300 KiB + (100 KiB / 2) = 350 KiB

This concept is mostly related (if not unique) to the Linux operating system. It was proposed by Matt Mackall because of the complications that arose when trying to count the "real memory" used by a process. The concepts of resident set size or virtual memory size (VmSize) weren't helping developers who tried to know how much memory their programs were using.

See also 
 Unique set size
 Resident set size

References

External links 
 PSS (Proportional Set Size) Calculation
 How much memory are applications really using?

Memory management
Computer bureau. A computer bureau is a service bureau providing computer services.

Computer bureaus developed during the early 1960s, following the development of time-sharing operating systems. These allowed the services of a single large and expensive mainframe computer to be divided up and sold as a fungible commodity. Development of telecommunications and the first modems encouraged the growth of computer bureau as they allowed immediate access to the computer facilities from a customer's own premises.

The computer bureau model shrank during the 1980s, as cheap commodity computers, particularly the PC clone but also the minicomputer allowed services to be hosted on-premises.

See also 
 Batch processing
 Cloud computing
 Grid computing
 Service Bureau Corporation
 Utility computing

References

Time-sharing
Computer systems
Business models
Raleigh Bomber. The Raleigh Bomber was a bicycle aimed at the boys/youth market which first appeared in 1981.  The Bomber had wide balloon tyres, a low slung frame and a sprung saddle with wide "cowhorn" style handlebars in the general style of a "cruiser" bicycle.

Concept
The Bomber was visually based on the American "clunkers", a homemade style of bicycle used on a Californian downhill course known as Repack during the late 1970s. These bicycles were fitted with wide tyres, wide motorcycle handlebars and a rear coaster (back pedal) brake. (The name Repack came from the need to repack the rear hub with grease after a downhill run). Many of the original riders of this course became the big early names in what became the genre of Mountain Bikes.  Meanwhile in the UK, another homemade genre known as the Tracker (or Cruiser) was popular. But owing to the lack of low slung frames and wide tyres, the UK bikes were adapted from old "sit up and beg" roadsters or road bikes. As a result, they had a less agricultural appearance, but were essentially of the same ilk. Indeed, this style of bicycle and rough, technically difficult, off road riding had been featured on television in England as early as 1961, when the Darlington "Bogwheelers" were interviewed by the BBC complete with their homemade bikes. It is therefore perhaps surprising that Raleigh took as long as they did to consider making their own version of these bicycles for the UK market. The prototypes included the 1980 Cruiser, which had the basic Bomber frame that Raleigh had created from two of their old designs, the rear half of which was from an old Nigerian roadster. This prototype was fitted with the typically slim UK tyres but the eventual Raleigh Bomber was shod with huge 26 x 2 1/4" tyres, on virtually unheard of 559mm rims.  These wheels would soon become the standard for Mountain Bikes which would sweep Britain a few years later. However, Raleigh decided not to fit a rear coaster brake to the Bomber which was a popular American standard but a very rare fitment in the UK. Instead it had either a single speed or Sturmey Archer 3 speed hub. It was also fitted with the Chainset from the Grifter and other generic Raleigh items like brakes and pedals.
The Bomber was successful enough to soon be accompanied by a Super Bomber version and later a 5 speed derailleur geared model. However, Raleigh discontinued the Bomber range in favour of the new Maverick Mountain Bike model in 1985.

References

Bicycles
Raj Kumar Goel Engineering College. Raj Kumar Goel Engineering College (RKGEC), founded in 2007, was a technical institute in the city of Pilkhuwa, Hapur district, Uttar Pradesh, India. It was recognized by the All India Council for Technical Education. It was managed by an educational trust known as the Raj Kumar Goel Educational Foundation. The college shut down in 2017.

Academic programmes
RKGEC, Pilkhuwa offers undergraduate and postgraduate programmes in engineering and management. The college provides degree courses in Civil Engineering, Computer Science & Engineering, Electrical & Electronics Engineering, Electronics & Communication Engineering, Mechanical Engineering, and Information Technology.

Facilities
 Library with more than 35,000 books
 Stationery shop with photocopying facility
 In-campus 24-7 Wi-Fi-enabled hostel facility
 Conveyance available for medical cases and all placement activities
 Computer centres are equipped with Core i3 3.2 GHz, 2 GB RAM systems with 40 Mbit/s fiber optic connectivity
 Cricket grounds, football field, cemented basketball court, volleyball court, cemented badminton court, table tennis tables.

References

Engineering colleges in Uttar Pradesh
Hapur district
Educational institutions established in 2007
2007 establishments in Uttar Pradesh
Oneillite. Oneillite is a rare mineral of the eudialyte group with the chemical formula . The formula is based on the original one but extended to show the presence of cyclic silicate groups and domination of Si at the M4 site. The mineral has lowered symmetry (space group R3, instead of more specific for the group R3m one) due to Ca-Mn ordering.  Similar feature is displayed by some other eudialyte-group members: aqualite, labyrinthite, raslakite, and voronkovite. Oneillite is strongly enriched in rare earth elements (REE, mainly cerium), but REE do not dominate any of its sites.

Notes on chemistry
Rare earth elements in oneillite include cerium, lanthanum, neodymium, and yttrium, with minor praseodymium and gadolinium. Other impurities are potassium, and minor amounts of aluminium, hafnium, strontium and tantalum.

Occurrence and association
Oneillite is one of four eudialyte-group minerals discovered within alkaline rocks of Mont Saint-Hilaire, Quebec, Canada. It associates with aegirine, albite, sodalite, and pyrite.

References

Cyclosilicates
Sodium minerals
Calcium minerals
Manganese minerals
Iron(II) minerals
Zirconium minerals
Niobium minerals
Trigonal minerals
Minerals in space group 146
Beacon Motors. Beacon Motors Ltd was a British automobile manufacturer based in Hindhead, Surrey from 1912 to 1913 moving to Liphook, Surrey until 1914.

The first Beacon was equipped with an air-cooled JAP V-twin engine which had a displacement of 1248 cc. The  wheelbase,  track chassis was a conventional one with half elliptic leaf spring suspension front and rear, but the bodywork could be specified to be made from cane basketwork. Drive was to the rear axle through a variable ratio friction drive and chains.

Later models had a slightly smaller engine with 1089 cc capacity, made by the French company Griffon. The later cars had shaft drive and a three-speed transmission located with the rear axle.

Production stopped on the outbreak of World War I.

Models

References

1910s cars
Cyclecars
Defunct motor vehicle manufacturers of England
Vehicle manufacturing companies established in 1912
Defunct companies based in Surrey
Ammineite. Ammineite is the first recognized mineral containing ammine groups. Its formula is [CuCl2(NH3)2]. The mineral is chemically pure. It was found in a guano deposit in Chile. At the same site other ammine-containing minerals were later found:

 Chanabayaite, CuCl(N3C2H2)(NH3)·0.25H2O (an alternative formula), a triazolate mineral
 Joanneumite, Cu(C3N3O3H2)2(NH3)2, an isocyanurate mineral
 Shilovite, Cu(NH3)4(NO3)2

Crystal structure
The characteristic features of the structure of ammineite are:
 layers of trans form of the copper complex, parallel to (001), connected by Cu-Cl bonds
 presence of CuN2Cl4 distorted octahedron ([4+2] coordination)
 edge-sharing of the octahedra produce zigzag chains along the [001] direction
 hydrogen bonds between NH3 and Cl atoms

Associated minerals
Ammineite coexists with atacamite, darapskite, halite and salammoniac.

Origin
Ammineite is supposed to be a result of an interaction of an earlier copper mineral, likely from a plutonic rock, with ammonia in guano. Ammonia may be produced in decomposition of compounds like urea or uric acid.

References

Copper(II) minerals
Orthorhombic minerals
Minerals in space group 63
Minerals described in 2010
Chanabayaite. Chanabayaite is the first recognized triazolate mineral, having the formula .

Minor iron admixture is also present. It is also one of a few currently known minerals containing ammine groups, including also ammineite, joanneumite and shilovite. All the minerals are rare and were found in a single guano deposit in Chile, called Pabellón de Pica. A similar natural phase, formula , likely a precursor of chanabayaite, is described by Zubkova et al. 2016.

Crystal structure
The main features of the crystal structure of chanabayaite are:
 copper forms octahedra, part of which share corners
 1,2,4-triazolate anions link the octahedra

Association
Chanabayaite coexists with halite, joanneumite, nitratine, salammoniac and paragenetically-unrelated chalcopyrite. Chalcopyrite is present in an amphibole- and plagioclase-bearing gabbro, that contacts the guano deposit.

Formation
Three suggested processes account for the formation of chanabayaite:
 leaching of sodium from the precursor phase
 leaching of chlorine from the precursor phase
 partial dehydratation of the precursor phase

References

Copper minerals
Organic minerals
Orthorhombic minerals
Minerals in space group 74
Chloride minerals
Osbornite. Osbornite is a naturally occurring variety of titanium nitride. It was first discovered in the Bustee meteorite in the late nineteenth century.  Its crystals are golden-yellow octahedrons, combined with oldhamite.  It is friable and does not dissolve in acids.

Osbornite is usually found only in meteorites, but osbornite of terrestrial origin has been found in one location in the continental collision zone of Tibet. Osbornite requires extraordinarily low redox potential and very high temperatures (2500–3000 K) to form.

References

Meteorite minerals
Marie Pistilli Award. The Marie R. Pistilli Women in Engineering Achievement Award is issued annually since 2000 by the Design Automation Conference (DAC) to honor the outstanding achievements of women in Electronic Design Automation. It is named after the co-founder of DAC, Marie Pistilli. Originally named as the "Marie R. Pistilli Women in EDA Achievement Award", it is named the "Marie R. Pistilli Women in Engineering Achievement Award" since 2016.

Recipients
2000: Penny Herscher, then with Cadence Design Systems
2001: Deirdre Hanford, Synopsys, Inc.
2002: Ann Rincon,  then senior technical staff member at IBM Microelectronics, Burlington, Vermont, "For her significant contributions in helping women advance in the field of DA technology"
2003: Karen Bartleson, Synopsis, Inc.
2004: Mary Jane Irwin, Pennsylvania State University
2005: Kathryn Kranen, Jasper Design Automation
2006: Ellen J. Yoffa, IBM
2007: Jan Willis, then with Cadence Design Systems - "Jan's leadership and dedication in serving as a mentor and role model to women in EDA, and young girls and boys as they begin to consider career options, exemplifies what the Marie R. Pistilli Women in Electronic Design Automation Achievement Award is all about."
2008: Louise Trevillyan IBM Research Center
2009: Telle Whitney
2010: Mar Hershenson, Vice President of Product Development in the Custom Design Business Unit at Magma Design Automation
2011: Limor Fix, senior principal engineer and director of academic programs and research at Intel
2012: Belle Wei, then Dean of Engineering, San Jose State University
2013: Nanette Collins, a public relations consultant from Boston, active in EDA industry
2014: Diana Marculescu,  Professor of Electrical and Computer Engineering, Carnegie Mellon University
2015: Margaret Martonosi, Princeton University
2016: Soha Hassoun, Tufts University
2017: Janet Olson, then with Synopsys, Inc. 
2018: Anne Cirkel, Senior Director for Technology Marketing at Mentor, a Siemens Business
2019: R. Iris Bahar, Brown University
2020: Alessandra Nardi, Cadence Design Systems Software Engineering Group Director 
2021: Renu Mehra, Vice President Engineering, Synopsys, Inc.  
2022: Michelle Clancy, President and CEO, Cayenne Global
2023: Xiaobo Sharon Hu, Professor in the Department of Computer Science and Engineering, University of Notre Dame

See also
 List of engineering awards

References

Awards established in 2000
Electronic design automation people
Electronic engineering awards
Lists of award winners