omniomni/omni-engineering huggingface dataset:
Rotax 916 iS. The Rotax 916 iS is an Austrian piston aircraft engine, designed and produced by Rotax of Gunskirchen for use in light aircraft, light sport, ultralight, homebuilt aircraft and Unmanned aerial vehicle.

The engine was publicly introduced in March 2023 and first used in the CubCrafters Carbon Cub UL.

Design and development
The engine is a turbocharged four-cylinder, four-stroke, horizontally-opposed,  displacement, gasoline engine design, with a mechanical gearbox reduction drive with a reduction ratio of 2.54:1. It employs dual electronic ignition and produces  at 5800 rpm for takeoff and  at 5500 rpm continuous operation, with a maximum operating altitude of .

It has electronic fuel injection; air cooling, with liquid-cooled cylinder heads; a stainless steel exhaust system; a dry sump, forced lubrication system with a separate oil tank; FADEC control and a 12 volt or 24 volt electric starter.

The initial time between overhaul is 2,000 hours.

Operational history
The Rotax 916 iS was chosen to power the CubCrafters Carbon Cub UL due to the engine's light weight and ability to burn unleaded automotive gasoline, to facilitate exports to areas of the globe where avgas is not available, such as South America and Africa.

Cub Crafters said of the engine that the "key to the development of the new aircraft is CubCrafters’ collaboration with BRP-Rotax, which is launching their new 160 HP turbocharged engine on the Carbon Cub UL. The new 916 iS engine is lighter, more fuel efficient, and can produce more power than the normally aspirated CC340 engine on the Carbon Cub SS in higher density altitude scenarios."

Applications
CubCrafters Carbon Cub UL

Zlin Aviation Norden UL and LSA
Elbit Hermes 900
TL Sport Sparker
Sling (TSi, HW)
SW-51 MUSTANG
VL3
Bristell 916RG Turbo

Specifications (916 iS)

See also

References

External links

Rotax engines
2020s aircraft piston engines
Boxer engines
Cerium monosulfide. Cerium monosulfide is a binary inorganic compound of cerium and sulfur with the chemical formula CeS. This is the simplest of cerium sulfides.

Synthesis
 Heating stoichiometric amounts of pure substances at 2450 °C:

 Reduction reaction of dicerium trisulfide and cerium hydride:

Physical properties
Cerium sulfide forms yellow crystalline solid of cubic syngony crystals, space group Fm3m, cell parameter a = 0.5780 nm, Z = 4, of NaCl-type structure.

The compound melts congruently at a temperature of 2450 °C.

Chemical properties
Cerium monosulfide has a wetting effect on metals, and it is relatively stable to metals other than platinum. It can react violently with platinum to form an intermetallic compound, platinum cerium.

References

Cerium compounds
Sulfur compounds
Monosulfides
Rock salt crystal structure
Martin I. Reiman. Martin I. Reiman is an American engineer and Professor in the Industrial Engineering and Operations Research Department at Columbia University.

Biography 
Reiman received his A.B. from Cornell University and his M.S. and Ph.D. from Stanford University. He began his career at Bell Labs in 1977 after graduating from Stanford. He was a Distinguished Member of Technical Staff at Bell Labs from 1998 until 2015. His research has focused on teletraffic theory and stochastic networks.

Reiman joined the faculty of the Fu Foundation School of Engineering and Applied Science at Columbia University in 2017.

Recognition 
Reiman received the John von Neumann Theory Prize from INFORMS in 2016.

He was elected to the National Academy of Engineering in 2022 for his "contributions to network theory and applications in large-scale stochastic systems." He is also a Fellow of the Institute for Operations Research and the Management Sciences (INFORMS).

References 

Living people
American engineers
Columbia School of Engineering and Applied Science faculty
Cornell University alumni
Stanford University alumni
Scientists at Bell Labs
Members of the United States National Academy of Engineering
Fellows of the Institute of Mathematical Statistics
Fellows of the Institute for Operations Research and the Management Sciences
Year of birth missing (living people)
Quantum battery. A quantum battery is a type of electric battery that uses the principles of quantum mechanics to store energy. They have the potential to be more efficient and powerful than traditional batteries. 

Quantum batteries are in the early stages of development.

History 
The concept of quantum batteries was first proposed in 2013. The amount of work that can be produced by a quantum battery is called ergotropy. By making the battery and the device being powered inseparable, such as by using quantum entanglement, more battery output than that having been stored is possible.

The first model proposed for a quantum battery was the Dicke model in 2018. Initially, the Dicke quantum battery appeared to show a quantum advantage in charging power. However, in 2020, it was demonstrated that the battery's Hamiltonian needed to be adjusted. Researchers found that the Dicke quantum battery, in fact, does not provide any quantum advantage.

The SYK quantum battery, proposed in 2020, is the first many-body quantum battery that shows a quantum advantage in the charging process.

Experiments on quantum batteries are in their infancy, and to date, there is no fully functional quantum battery.

Models

Dicke Quantum Battery 
The Dicke quantum battery uses the Dicke model to store energy. This battery was first proposed due to its relation with superradiant emission and its practical feasibility.

The Dicke model describes the collective interaction of an ensemble of N two-level atoms (TLSs) with a single mode of the cavity field. Cavities are typically composed of two or more mirrors that reflect light back and forth, creating a standing wave of electromagnetic radiation, with frequencies determined by the cavity’s geometry.

The first term describes the energy of the photons. The second term describes the energy of the qubits. The third term describes the interaction between photons and qubits.  is the coupling parameter. This model initially seemed to show that the mean charging power scaled in a super-extensive manner: . However, this Hamiltonian is not well-defined in the thermodynamic limit ( while keeping  constant).

To fix this, it is necessary to substitute:  By doing so, scientists found that this battery does not provide any quantum advantage.

SYK Quantum Battery 
The SYK quantum battery uses the Sachdev–Ye–Kitaev model to store energy. This battery uses the direct charging protocol: where 
   is the battery hamiltonian
  is the interaction hamiltonian.
This is the first many-body model that shows a super extensive charging power.

References 

Battery types
Quantum mechanics
Multi-unit abutment. A multi-unit abutment (MUA) is an abutment most commonly used with dental implants in "All-on-Four" protocols. They are designed for screw-retained group restorations, which are often used in combination with angled dental implants and whole arch replacements, as well as screw fixation of bridges made of zirconium or metal-ceramic group restorations to the implant.

Medical uses 
Multi-unit abutments are used to align the prosthesis on a level restorative platform, adjust for variations in implant heights, and place the implant connection at the same level as or just below the gingival surface.

Terminology
 Abutment (dentistry)
 a supporting element fixed in the implant, a prosthesis is directly attached to the abutment: a crown, multiple restoration or a splinted restoration of a complete dentition.

 Multi-unit abutment 
 A multi-unit abutment is a type of abutment that allows for the connection of multiple implant fixtures to a single prosthesis. They can be angled or straight, and come in various sizes and shapes to fit different implant systems and clinical situations.

References 

Implants (medicine)
Dental surgical procedures
Oral surgery
Dental equipment
Aprilia SXR. The Aprilia SXR is a scooter from the Italian manufacturer Aprilia.

History
Previewed at the Auto Expo at Delhi in February 2020, production takes place in the factory Piaggio of Baramati in end of November.

The SXR was initially launched in the Indian market in the displacement from 160 cm3, followed by two more cubicles, the 50 that made its debut in April 2021 and 125 in July.

All engines are characterized by having a single cylinder a cycle eight four stroke, of Piaggio derivation of the I-Get family and approved Euro 5, equipped with a system of electronic injection and characterized by distribution SOHC 3-valve.
 
The frame is composed of a single-cradle structure in tubes of steel assisted by elements in pressed sheet metal. At the front there is one telescopic fork hydraulic while at the rear axle a single shock absorber, adjustable in 5 positions. The gearbox is an automatic CVT with continuous variation.
 
On the 50 cm3 version the circles are 12” and fit tires measuring 120/70. On this engine, the engine delivers a maximum torque of 3.3 Nm at 6250 rpm and a power of 2.4 Kw at 7000 rpm. The braking system consists of a 220 mm front disc with a double piston caliper and a 140 mm rear drum.
 
Only version 50 is imported on the European market, replacing the previous one Aprilia SR Max released production in 2020.

References

External links

Motor scooters
Aprilia motorcycles
Single-cylinder motorcycles
Motorcycles introduced in 2020
Susan Mantell. Susan C. Mantell is an American mechanical engineer interested in the design, fabrication, and longevity of structures made from polymers and composite materials, and the use of these structures in renewable energy systems and energy-efficient architecture. Her research has also included work on microelectromechanical systems. She is James J. Ryan Professor, Morse Alumni Distinguished Teaching Professor, and head of the Department of Mechanical Engineering at the University of Minnesota.

Education and career
Mantell majored in mechanical engineering at Stanford University, graduating in 1981. After working in industry in Massachusetts for several years, she returned to graduate study for a master's degree at Northeastern University in 1987, and then a Ph.D. from Stanford in 1991.

She became an assistant professor at the University of Minnesota in 1991, choosing the university in part to solve a two-body problem with her husband, who was entering graduate study at the same time. There, she became the only woman in the university's Department of Mechanical Engineering. She was promoted to associate professor in 1998 and full professor in 2003. She has been James J. Ryan Professor, and head of the mechanical engineering department, since 2019.

Recognition
Mantell was elected as an ASME Fellow in 2016.

The University of Minnesota Alumni Association gave Mantell the Horace T. Morse Award for Outstanding Contributions to Undergraduate Education, and she was given the permanent designation as a Distinguished University Teaching Professor, in 2011.

References

External links

Year of birth missing (living people)
Living people
American mechanical engineers
American women engineers
Stanford University alumni
Northeastern University alumni
University of Minnesota faculty
Fellows of the American Society of Mechanical Engineers
Pamela J. Martin. Pamela Jean Martin is a TARRC scientist recognized for her work on silica fillers in epoxidized natural rubber tire tread compounds to understand impacts on rolling resistance, wet grip and wear.

Education 

Martin studied chemistry, graduating from the University of Exeter in 2003 with a first class MChem.  In 2008 she completed her doctorate at the University of York on the subject of liquid crystals.

Career 

Martin joined TARRC in 2008 as a materials scientist.  Her initial work focused on the development of tire tread compounds based on epoxidised natural rubber (ENR or Ekoprena™).  In 2017 she was awarded patent for a mixing procedure suitable for incorporating silica filler into polar rubbers, such as epoxidised natural rubber, resulting in low resistance and high wet grip.

Awards and recognition

 2019 - Sparks–Thomas award from the ACS Rubber Division.

References 

Polymer scientists and engineers
Living people
Women materials scientists and engineers
Alumni of the University of Exeter
Alumni of the University of York
Year of birth missing (living people)
Ikechukwu Emetu. Ikechukwu Lekwachi Emetu (born 09 April 1984) is a Nigerian engineer and politician who has served as deputy governor of Abia State since 2023.

Life and career 
Emetu is from Ohafia. He is a petrochemical engineer. According to govornor Alex Otti in a press briefing released by the News Agency of Nigeria, Emetu was picked because of his "youth, his outstanding community development service and humanitarian gestures". He received his certificate of return on 29 March 2023.

References 

21st-century Nigerian politicians
1985 births
Nigerian engineers
Living people
People from Abia State
Mercedes-Benz Vision EQ Silver Arrow. The Mercedes-Benz Vision EQ Silver Arrow is an electric concept car produced by German manufacturer Mercedes-Benz, in collaboration Daimler AG, and revealed at the 2018 Pebble Beach Concours d'Elegance, announcing the arrival of the manufacturers EQ electric vehicle range. It uses retro styling, and pays homage to the Mercedes-Benz W125 Rekordwagen.

Presentation 

The Mercedes Vision EQ Silver Arrow was presented on 24 August 2018 at the 2018 Pebble Beach Concours d'Elegance in California, United States, before its European exhibition at the 2018 Paris Motor Show.

The latest Mercedes-Benz concept cars are called “Vision” and the manufacturer’s future electric range is called “EQ”. With this new electric concept car, Mercedes pays homage to the Silver Arrows and in particular the Mercedes-Benz W125 Rekordwagen which established the speed record for a kilometre, achieving 432.7 km/h in 1938. Unlike its predecessor, the 2018 Silver Arrow is 100% electric, it swaps the 5,573cc V12 for a 750hp electric motor with a 80 kWh battery.

Technical specifications 

The Silver Arrow features a carbon fibre body and its steering wheel is equipped with a touch screen in its centre. On the dashboard it also receives a screen which reproduces images in 3D.

The rear of the car has a retractable two-part pressure wing and a flip-up cover of the cockpit intended only for the driver, as there is only one seat in the car. The battery has a capacity of 80 kWh. The electric motor provides a power output of 550kW, equivalent to 750hp, and benefits from a range of 400km from its 80kWh battery.

The car has Pirelli tires measuring 255/25 R24 at the front and 305/25 R26 at the rear.

Design

Exterior 
The car is 530 centimetres long. At the front is a digital grille, featuring narrow headlights connected by an LED strip.

Interior 
The interior features a wooden floor, a leather sports seat, ambient lighting and a sports steering wheel. There are also a pair of digital displays, of which the far one monitors the route, and the one on the steering wheel shows speed and other important data.

Gallery

References

See also 

 Audi AI:RACE
 Electric vehicle
 Mercedes-Benz Vision EQXX

Mercedes-Benz concept vehicles
2010s cars
Coupés
Electric vehicles
Sports cars
Luxury vehicles
Concept cars
Retro-style automobiles
Iqbal Mujtaba. Professor Iqbal Mujtaba is an academic and engineer who specializes in chemical engineering. He is currently serving as the associate dean at the University of Bradford. 

As of March 2023, he has published over 390 technical papers in major engineering journals, with a focus on distillation, desalination, wastewater treatment, and refineries.

Career 
Following  his PhD, Mujtaba became a research fellow at Process Systems Engineering, Imperial College, London. He remained at the Imperial College until 1994, when he joined the University of Bradford as a lecturer in Chemical Engineering.

In 2000, he became the secretary of IChemE Computer Aided Process Engineering Subject Group. He later held the position of chair at the subject group between 2015 and 2019. In 2001, he edited the book, Application of Neutral Networks and Other Learning Technologies in Process Engineering. In 2004, he published "Batch Distillation - 
Design and Operation" with World Scientific on the subject of 
batch distillation. He edited several books, "Composite Materials Technology: Neutral Network Applications (2009)", "The Water-Food-Energy Nexus: Processes, Technologies and Challenges (2017)," "Water Management: Social & Technological Perspectives (2018)." In 2020, he published "Wastewater Treatment by Reverse Osmosis Process," and then in 2022 published "Desalination Technology: Design and Operation."

Mujtaba works in an editorial capacity for numerous peer-reviewed and open access journals, including as an Associate Editor for South African Journal for Chemical Engineering, 
Editorial Board Member for Energies and Processes.

He recently became a fellow of both the Institution of Chemical Engineers and the Royal Academy of Engineering.

Mujtaba is a world leader in batch distillation. Much of Mujtaba's recent research has focused on three topic areas - water, energy and 
food.

References

Living people
British engineers
Year of birth missing (living people)
Berkelium tetrafluoride. Berkelium tetrafluoride is a binary inorganic compound of berkelium and fluorine with the chemical formula .

Synthesis
Berkelium tetrafluoride may be formed by the fluorination of  berkelium trioxide, dioxide, or trifluoride with elemental fluorine at elevated temperatures:

Physical properties
Berkelium(IV) fluoride forms light brown crystals of monoclinic crystal structure of uranium tetrafluoride type. Cell parameters: a = 1.2396 nm, b = 1.0466 nm, c = 0.8118 nm, angle β = 126.33°.

Chemical properties
Berkelium tetrafluoride is reduced by lithium at elevated temperatures to metallic berkelium:

References

Fluorides
Berkelium compounds
Actinide halides
Julie Champion. Julie Anne Champion is a professor of chemistry who holds the William R. McLain Endowed Term Professorship at Georgia Institute of Technology. She is known for her work on biomaterials used for drug delivery.

Education and career 
Champion attended the University of Michigan, where she earned a Bachelor of Science degree in chemical engineering in 2001. After completing her undergraduate studies, Champion continued her education at the University of California, Santa Barbara, where she earned a Ph.D. in chemical engineering in 2007 under Samir Mitragotri. Following the completion of her Ph.D., Champion conducted postdoctoral research at the California Institute of Technology where she worked with David A. Tirrell. In 2009, Champion joined the faculty of the Georgia Institute of Technology. As of 2023 Champion is the William R. McLain Endowed Term Professorship.

Research
Champion is known for her work on the development of biomaterials for use in drug delivery, tissue engineering, and regenerative medicine. Her doctoral research focused on the design and synthesis of polystyrene particles with different geometry and their impact to cellular uptake.  More recently, her research includes work with nanoparticles investigating how to prevent bacterial growth on surfaces.

Selected publications

Awards and honors 
The American Chemical Society gave Champion their Rising Star Award in 2021. That same year she was named a fellow of the American Institute for Medical and Biological Engineering in recognition of her work on "the creation of materials made from therapeutic proteins that enable their delivery and function in immunomodulatory and cancer applications."

"References

External links 
 

Living people
University of Michigan alumni
University of California, Santa Barbara alumni
Georgia Tech faculty
American women chemists
American medical researchers
Year of birth missing (living people)
Dreame Technology. Dreame Technology (; referred to simply as Dreame), with the full name Dreame Technology Co., Ltd., also known as Dreametech, is a Chinese household appliance manufacturer founded by Yu Hao in 2017. Its main products include cordless vacuums, scrubbers, hairdryers, robotic lawn mowers and robot vacuum cleaners and mops. The company specializes in the production of vacuum cleaners. In addition, it owns and operates an app called Dreamehome.

Outside of China, Dreame products are available in overseas markets such as Malaysia, Australia, and the US. After its establishment, the company was backed by Xiaomi, Yunfeng Capital, and Shunwei Capital. In October 2021, it raised $563 million in a Series C funding round.

History
The company originated as a campus organization called "Skyworks". In 2017, Dreame was officially formed. In December 2018, the firm launched its first product.

In 2020, Dreame developed a 150,000-rpm digital motor. In August, it secured an investment from IDG Capital. In December, its Suzhou smart factory started operations.

In October 2021, Dreame reached a partnership with Borussia Dortmund. The company introduced its first robot vacuum-mop in January 2022. In September 2023, it exhibited at the IFA.

References

Companies based in Suzhou
Manufacturing companies established in 2017
Electronics companies established in 2017
Robotic vacuum cleaners
Vacuum cleaner manufacturers
Chinese brands