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Engineering News

Astronomers find plane of dwarf satellites orbiting Centaurus A — ScienceDaily

An international team of astronomers has determined that Centaurus A, a massive elliptical galaxy 13 million light-years from Earth, is accompanied by a number of dwarf satellite galaxies orbiting the main body in a narrow disk. In a paper published today in Science, the researchers note that this is the first time such a galactic arrangement has been observed outside the Local Group, home to the Milky Way. “The significance of this finding is that it calls into question the…

New radiation detectors developed at Sandia used for New START inspections

Sandia National Laboratories designed new radiation detection equipment for New START Treaty monitoring. This new equipment detects neutron levels to confirm that objects are non-nuclear, consistent with the provisions of the treaty. Credit: Randy Montoya Sandia National Laboratories designed, tested and delivered new radiation detection equipment for monitoring under the New START Treaty. Defense Threat Reduction Agency inspectors recently used this equipment for the first time in Russia for a New START inspection. New START, or the New Strategic Arms…

Cloudflare Workers is now on Open Beta

Cloudflare Workers Beta is now open! Cloudflare Workers lets you run JavaScript on Cloudflare’s edge, deploying globally to over 120+ data centers around the world in less than 30 seconds. Your code can intercept and modify any request made to your website, make outbound requests to any URL on the Internet, and replace much of what you might need to configure your CDN to do today. Even better, it will do this from all our edge locations around the world,…

Machine tools receiving a check-up

The researchers configure the measuring nest. Credit: Fraunhofer IWU Influences like temperature variation, drafts, and air humidity can heavily compromise precision. The Fraunhofer Institute for Machine Tools and Forming Technology IWU is exposing machines to various climate zones around the world without actually shipping them to Southeast Asia, Canada, or Brazil: A newly inaugurated climate chamber is able to test how ambient conditions affect the function of lathes and other machines. Machine tools are thermally sensitive: operational precision can be…

Interdisciplinary interests lead IT student to forge unique educational path

Anthony Greer chose to pursue a more individualized path that would better fit his range of interests and aspirations. He found this within the Interdisciplinary Studies degree, selecting an emphasis in IT, communications and sociology. Photo courtesy of Anthony Greer. by Megan Schaltegger Following his sophomore year at the University of Missouri, now-senior Anthony Greer decided he wasn’t fulfilling his potential as solely an information technology major. In fact, he didn’t see a direct fit with any one program. Greer…

Efficient use of resources in manufacture of metal components

Structurally optimized wheel bearing for an ultralightweight vehicle designed for Additive Manufacturing – made in the 3D-Printing Lab for Metals and Structural Materials at Fraunhofer EMI. Credit: Fraunhofer EMI Additive Manufacturing has established itself in many industrial sectors as a method for making plastic parts. The 3-D printing of metals is on the road to becoming a similar success story. In the newly opened 3-D-Printing Lab for Metals and Structural Materials at the Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI,…

3-D printing of living cells

A tube with an outer diameter of approximately 15 mm and a modular internal architecture is printed in one step, by depositing core-shell alginate microparticles onto a rotating substrate. The nozzles are just visible in the top of the image. Credit: C.W. Visser and T. Kamperman Using a new technique they call “in-air microfluidics,” University of Twente scientists succeed in printing 3-D structures with living cells. This special technique enable the fast and ‘on-the-fly’ production of micro building blocks that…

Fast JSON API serialization with Ruby on Rails – Netflix TechBlog – Medium

by Shishir Kakaraddi, Srinivas Raghunathan, Adam Gross and Ryan Johnston We are pleased to announce the open source release of the Fast JSON API gem geared towards Ruby on Rails applications. Introduction Fast JSONAPI is aimed at providing all the major functionality that Active Model Serializer (AMS) provides, along with an emphasis on speed and performance by meeting a benchmark requirement of being 25 times faster than AMS. The gem also enforces performance testing as a discipline. AMS is a…

Genes suppressed by sound stimulation — ScienceDaily

In a new PLOS ONE study, scientists from Kyoto University’s Graduate School of Biostudies have shown that certain ‘mechanosensitive’ genes are suppressed when subjected to audible sound. Moreover, these effects vary depending on cell type, where some don’t show any sensitivity. Cells, the fundamental units of life, are equipped with a variety of environmental recognition systems. Aside from substances such as chemical signals, they can recognize and respond to pressure, gravity, temperature, and light. For example, the cells in your…