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Category: engineering – Page 238

Improving computer graphics with quantum mechanics

Nice article; I do need to mention that more and more screen displays are moving to Q-Dot technology. So, computer graphics is being enriched in multiple ways by Quantum.

Caltech applied scientists have developed a new way to simulate large-scale motion numerically using the mathematics that govern the universe at the quantum level.

The , presented at the International Conference and Exhibition on Computer Graphics & Interactive Techniques (SIGGRAPH), held in Anaheim, California, from July 24–28, allows computers to more accurately simulate vorticity, the spinning motion of a flowing fluid.

A smoke ring, which seems to turn itself inside out endlessly as it floats along, is a complex demonstration of vorticity, and is incredibly difficult to simulate accurately, says Peter Schröder, Shaler Arthur Hanisch Professor of Computer Science and Applied and Computational Mathematics in the Division of Engineering and Applied Science.

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Japan is about to test out plans for a real-life space elevator

The idea of a space elevator to lift us into orbit is one of the oldest concepts in sci-fi, but thanks to the efforts of scientists in Japan, we might soon be seeing this fantastic feat of engineering become a reality at last.

A mini satellite called STARS-C (Space Tethered Autonomous Robotic Satellite-Cube) is heading to the International Space Station in the coming months and is a prototype design that could form the basis of a future space elevator.

Once STARS-C has been delivered – on some to-be-determined date after the Northern Hemisphere’s summer – its makers at Shizuoka University will put it to the test: the orbiter will split into two 10-cm (3.94-inch) cubes and spool out a thin 100-metre tether made of Kevlar between them.

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BioCryptography and Biometric Penetration Testing

I do love biometrics for security; however, many know that we will not only leverage biometrics alone for certifying identification given how easy it is for folks to retrieve others DNA information, etc. from commercial DNA sites, etc.

In the world of security, there are many tools at the IT Staff’s disposal which can be used to fight Cybercrimes of all types and levels. Regarding Physical Access Entry, Smart Cards and FOB’s are available to help alleviate the probability of a Social Engineering attack. Regarding Logical Access Entry, Network Intrusion Devices, Firewalls, Routers, etc. are also all ready to be installed and used.

But, there is one problem with all of these tools above: To some degree or another, all of them can be hijacked, stolen, or even spoofed so that a real Cyber hacker can find their way into a corporation very quickly and easily. For instance, a Smart Card can be easily lost or stolen; or even malformed data packets can be sent to a router and tricking it that it is a legitimate employee trying to gain access.

But, there is one Security technology out there which, for the most part, cannot be spoofed or tricked. As a result, it can provide 100% proof positive of the identity of an end user. This technology is known as Biometrics.

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Enterprise Fellowships to kick-start the quantum technology industry

Luv this.

The University of Bristol’s Quantum Technology Enterprise Centre (QTEC) is looking to recruit its first cohort of Enterprise Fellows that will be the next generation of quantum technology entrepreneurs.

Merging training in systems thinking, quantum engineering and entrepreneurship, QTEC will provide the necessary skills for budding innovators to develop their own business ideas and for them to branch out into the emerging field of quantum technologies.

The Centre, which is the first of its kind in the world, was funded as part of the UK’s £270 million investment into quantum technologies. These technologies exploit the laws of quantum mechanics to create practical and useful technologies that will outperform their classical rivals and that have the potential to transform artificial intelligence, healthcare, energy, finance, cyber security and the internet.

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One of the First Real-World Quantum Computer Applications Was Just Realized

Luv it; and this is only the beginning too.

In the continued effort to make a viable quantum computer, scientists assert that they have made the first scalable quantum simulation of a molecule.

Quantum computing, if it is ever realized, will revolutionize computing as we know it, bringing us great leaps forward in relation to many of today’s computing standards. However, such computers have yet to be fabricated, as they represent monumental engineering challenges (though we have made much progress in the past ten years).

Case in point, scientists now assert that, for the first time ever, using this technology, they have made a scalable quantum simulation of a molecule. The paper appears in the open access journal Physical Review X.

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Researchers develop plastic flexible magnetic memory device

A new technique has been developed to implant high-performance magnetic memory chip on a flexible plastic surface without compromising performance.

It looks like a small piece of transparent film with tiny engravings on it, and is flexible enough to be bent into a tube. Yet, this piece of “smart” plastic demonstrates excellent performance in terms of data storage and processing capabilities. This novel invention, developed by researchers from the National University of Singapore (NUS), hails a breakthrough in the flexible electronics revolution, and brings researchers a step closer towards making flexible, wearable electronics a reality in the near future.

The technological advancement is achieved in collaboration with researchers from Yonsei University, Ghent University and Singapore’s Institute of Materials Research and Engineering. The research team has successfully embedded a powerful magnetic memory chip on a flexible plastic material, and this malleable memory chip will be a critical component for the design and development of flexible and lightweight devices. Such devices have great potential in applications such as automotive, healthcare electronics, industrial motor control and robotics, industrial power and energy management, as well as military and avionics systems.

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Study shows continuous dehydration kills cells during dry preservation

A new finding in experiments studying the dry preservation of living cells — a potentially revolutionary alternative to cryopreservation — has defined a clear limit where continuing dehydration kills cells. The data, combined with molecular dynamics simulations, provides insight into an important processing factor that has limited recent attempts at dry preservation.

“What we have done is identified what appears to be a materials constraint in our method of dry preservation. I think this new understanding suggests some interesting avenues to pursue in developing a successful process,” said Gloria Elliott, Professor of Mechanical Engineering at the University of North Carolina at Charlotte, one of the study’s authors.

The findings, reported in the July 8 issue of Scientific Reports, analyzes changes in the molecular arrangements of trehalose (a sugar) and water molecules during a typical dehydration process that they use to immobilize cells in a stable trehalose glass for long-term storage.

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Scientists develop way to upsize nanostructures into light, flexible 3D printed materials

For years, scientists and engineers have synthesized materials at the nanoscale level to take advantage of their mechanical, optical, and energy properties, but efforts to scale these materials to larger sizes have resulted in diminished performance and structural integrity.

Now, researchers led by Xiaoyu “Rayne” Zheng, an assistant professor of mechanical engineering at Virginia Tech have published a study in the journal Nature Materials that describes a new process to create lightweight, strong and super elastic 3D printed metallic nanostructured with unprecedented scalability, a full seven orders of magnitude control of arbitrary 3D architectures.

Strikingly, these multiscale metallic materials have displayed super elasticity because of their designed hierarchical 3D architectural arrangement and nanoscale hollow tubes, resulting in more than a 400 percent increase of tensile elasticity over conventional lightweight metals and ceramic foams.

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Columbia Engineering Researchers Use Acoustic Voxels to Embed Sound with Data

Columbia Engineering Professor Changxi Zheng’s new approach could lead to better tagging and coding, leveraging 3D printing of complex geometries.

New York — July 18, 2016 — Columbia Engineering researchers, working with colleagues at Disney Research and MIT, have developed a new method to control sound waves, using a computational approach to inversely design acoustic filters that can fit within an arbitrary 3D shape while achieving target sound filtering properties. Led by Computer Science Professor Changxi Zheng, the team designed acoustic voxels, small, hollow, cube-shaped chambers through which sound enters and exits, as a modular system. Like Legos, the voxels can be connected to form an infinitely adjustable, complex structure. Because of their internal chambers, they can modify the acoustic filtering property of the structure—changing their number and size or how they connect alters the acoustic result.

“In the past, people have explored computational design of specific products, like a certain type of muffler or a particular shape of trumpet,” says Zheng, whose team is presenting their paper, “Acoustic Voxels: Computational Optimization of Modular Acoustic Filters,” at SIGGRAPH 2016 on July 27. “The general approach to manipulating sound waves has been to computationally design chamber shapes. Our algorithm enables new designs of noise mufflers, hearing aids, wind instruments, and more — we can now make them in any shape we want, even a 3D-printed toy hippopotamus that sounds like a trumpet.” VIDEO: http://www.cs.columbia.edu/cg/lego/

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