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The University of Edinburgh is one of the world’s top 20 institutions of higher education.....
- Recruiter: The University of Edinburgh
- Bristol, England / Cumbria, Barrow-In-Furness, England
Principal Electrical Engineer - Power Join our Electrical Power team and help design the self-contained generation and distribution system for the Successor submarine - a new generation of submarine designed to carry the UK's independent nuclear deterrent
- Recruiter: BAE Systems
- England, Cambridgeshire
- £33000 - £39000 per annum
Operations Supervisor - (Mechanical/Electrical/Instrumentation) Salary: Circa £33k - 39k dependant on experience + vehicle and great additional benefits (share scheme, pension, potential bonus).Location: Wisbech - Cambridgeshire We currently have an excit
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- England, Lancashire
- Competitive package
Would you like to be involved with training UK and international teams in Non Destructive Inspection (NDI) to support the in service fleet (Typhoon Tornado, and Hawk)?
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What?s the opportunity? There are fantastic opportunities in Systems Design for engineers to work within Future Systems. These are highly visible, fast paced roles, in...
- Recruiter: MBDA
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- £24,109 - £27,961 plus EO Electronics PE of £8,090.00
We are now looking for a Metering Engineer to deliver RD’s In-Service Testing (IST) scheme for gas and electricity meters.
- Recruiter: Department for Business, Innovation and Skills
- Shrewsbury, Shropshire
- £46,625 to £57,640 per annum
As an experienced Estates Manager, you will play a key role in helping to shape the future of the Estates service.
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- York, North Yorkshire
- c£45,000 + Car Allowance + Bonus + Excellent Benefits
Nestlé Product Technology Centre in York currently has an excellent opportunity for an Engineering Project Manager
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- Zurich, Canton of Zürich (CH)
The successful candidate is expected to develop a strong and visible research programme in the area of control and diagnostics of building systems
- Recruiter: ETH Zurich
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- £60k - 75k plus extensive Compensation and benefits package, dependent upon experience
Experienced Process Control Leader providing leadership and technical support for Oil Refinery. Extensive Compensation and benefits package.
- Recruiter: Phillips 66
Printing in 4D with ‘shape memory’ polymer fibres
3D printers could soon be printing in 4D thanks to the use of ‘shape memory’ polymer fibres'
Manufacturing in four dimensions is now possible after researchers incorporate ‘shape memory’ polymer fibres into 3D printing.
Researchers at the University of Colorado Boulder (CU-Boulder) believe the innovation, which adds a time-dimension to the 3D printing process, will open up possibilities for the creation and use of adaptive, composite materials in manufacturing, packaging and biomedical applications.
A team led by H. Jerry Qi, associate professor of mechanical engineering at CU-Boulder, and his collaborator Martin Dunn of the Singapore University of Technology and Design introduced the novel fibres into the composite materials used in traditional 3D printing, resulting in the production of an object fixed in one shape that can later be changed to take on a new shape.
“In this work, the initial configuration is created by 3D printing, and then the programmed action of the shape memory fibres creates time dependence of the configuration; the 4D aspect,” said Dunn, a former CU-Boulder mechanical engineering faculty member.
The 4D printing concept, which allows materials to “self-assemble” into 3D structures, was initially proposed by Massachusetts Institute of Technology faculty member Skylar Tibbits in April of this year. Tibbits and his team combined a strand of plastic with a layer made out of “smart” material that could self-assemble in water.
“We advanced this concept by creating composite materials that can morph into several different, complicated shapes based on a different physical mechanism,” said Dunn.
“The secret of using shape memory polymer fibres to generate desired shape changes of the composite material is how the architecture of the fibres is designed, including their location, orientation and other factors.”
The CU-Boulder team’s findings are published in the journal Applied Physics Letters. The paper was co-authored by Qi “Kevin” Ge, who joined MIT as a postdoctoral research associate in September.
“The fascinating thing is that these shapes are defined during the design stage, which was not achievable a few years ago,” said Qi.
The CU-Boulder team demonstrated that the orientation and location of the fibres within the composite determines the degree of shape memory effects like folding, curling, stretching or twisting. The researchers also showed the ability to control those effects by heating or cooling the composite material.
Qi says 3D printing technology, which has existed for about three decades, has only recently advanced to the point that active fibres can be incorporated into the composites so their behaviour can be predictably controlled when the object is subjected to thermal and mechanical forces.
The technology promises exciting new possibilities for a variety of applications. Qi said that a solar panel or similar product could be produced in a flat configuration onto which functional devices can be easily installed.
It could then be changed to a compact shape for packing and shipping. After arriving at its destination, the product could be activated to form a different shape that optimizes its function.
As 3D printing technology matures with more printable materials and higher resolution at larger scales, the researchers hope their work will help provide a new approach to creating reversible or tunable 3D surfaces and solids in engineering like the composite shells of complex shapes used in automobiles, aircraft and antennas.
"As the dust settles after the referendum result, we consider what happens next. We also look forward to an international summer of sport."
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