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Engineering News

Using fabric to ‘listen’ to space dust

A team of MIT researchers has sent a panel of passive smart fabric samples to the International Space Station for a year to help determine how well these fabrics survive low Earth orbit. Credits: JAXA/Space and edited by MIT News Earlier this month a team of MIT researchers sent samples of various high-tech fabrics, some with embedded sensors or electronics, to the International Space Station. The samples (unpowered for now) will be exposed to the space environment for a year…

Effect of odor on helpfulness in rats — ScienceDaily

Despite their reputation, rats are surprisingly sociable and actually regularly help each other out with tasks. Researchers at the Universities of Göttingen, Bern and St Andrews have now shown that a rat just has to smell the scent of another rat that is engaged in helpful behaviour to increase his or her own helpfulness. This is the first study to show that just the smell of a cooperating individual rat is enough to trigger an altruistic and helpful response in…

China and Japan race to dominate the future of high-speed rail

Credit: Pixabay/CC0 Public Domain Japan and China are racing to build a new type of ultra-fast, levitating train, seeking to demonstrate their mastery over a technology with big export potential. Magnetic levitation, or maglev, trains use powerful magnets to glide along charged tracks at super fast speeds made possible by the lack of friction. A handful of short distance and experimental maglev trains are already in operation, but Asia’s two biggest economies are vying to develop what would be the…

Offshore submarine freshwater discovery raises hopes for islands worldwide — ScienceDaily

Twice as much freshwater is stored offshore of Hawai’i Island than was previously thought, according to a University of Hawai’i study with important implications for volcanic islands around the world. An extensive reservoir of freshwater within the submarine southern flank of the Hualālai aquifer has been mapped by UH researchers with the Hawai’i EPSCoR ‘Ike Wai project. The groundbreaking findings, published in Science Advances, reveal a novel way in which substantial volumes of freshwater are transported from onshore to offshore…

Open- Versus Closed-Circuit Filtration for Hydraulics Performance

At a Glance: Know the basics of open- and closed-circuit filtration designs. Factors to consider when specifying a return line filter system. Selecting the appropriate filtration system when designing a hydraulic circuit is critical for maintaining fluid cleanliness and preventing premature wear, both of which contribute to optimal system operation and service life. Contamination of the hydraulic system can occur during assembly and during operation. Contamination can come in many forms, including water or other fluids, air, solid particles, or…

Scientists improve 3-D printing technology for aerospace composites using oil waste

Aviation parts printed on a 3D printer from new metal powders Credit: Sergey Gnuskov/NUST MISIS Scientists from NUST MISIS have improved the technology of 3-D printing from aluminum, having achieved an increase in the hardness of products by 1.5 times. The nanocarbon additive to aluminum powder, which they have developed, obtained from the products of processing associated petroleum gas, will improve the quality of 3-D printed aerospace composites. The research results are published in the international scientific journal Composites Communications…

Driving LEDs for High-Power Machine-Vision Flash

>> Electronic Design Resources.. >> Library: Article Series.. .. >> Topic: Power Management .. .. .. >> Series: Driving LED Designs Machine-vision systems use very short flashes of intense light to produce high-speed images employed in a wide variety of data-processing applications. For instance, fast-moving conveyor belts are run through machine-vision systems for quick label and defect inspections. IR and laser LED flashes are commonly used for proximity- and motion-sensing machine vision. Security systems send out high–speed, hard-to-detect LED flashes…

Life During the Pandemic: How Are You Connected?

This article appeared in Microwaves & RF and has been published here with permission. Scientists say that we humans owe our large-ish brains and capacity for adaptive behavior to the rapidly changing landscape our earliest ancestors faced over the first 5 million years of existence. Coming up with new solutions to new threats (massive climate and resulting geographical changes)—and then sharing those solutions—created a path to survival. Human brains are essentially social brains, according to Rick Potts, paleoanthropologist and director…

Scientists invent ultrafast way to manufacture perovskite solar modules

A perovskite solar module produced by rapid-spray plasma processing. Stanford Prof. Reinhold Dauskardt’s lab has shown that perovskite modules can be produced cheaper and four times faster than conventional silicon panels. Credit: Nick Rolston Most solar cells today are made with refined silicon that turns sunlight into clean electricity. Unfortunately, the process of refining silicon is far from clean, requiring vast amounts of energy from carbon-emitting power plants. For a greener alternative to silicon, researchers have focused on thin-film perovskites—low-cost,…

Moving Quicksilver into production

One of the great arts of software engineering is making updates and improvements to working systems without taking them offline. For some systems this can be rather easy, spin up a new web server or load balancer, redirect traffic and you’re done. For other systems, such as the core distributed data store which keeps millions of websites online, it’s a bit more of a challenge. Quicksilver is the data store responsible for storing and distributing the billions of KV pairs…