Archive for the ‘engineering’ category

Nov 14, 2018

Bosch Boosts IOTA With New Device Connectivity For IoT Data Collection

Posted by in categories: bitcoin, cryptocurrencies, engineering, internet

Multinational engineering and electronics giant Bosch recently highlighted a new device connectivity method which will work with the Iota marketplace, among other things, for real-time IoT (Internet of Things) data collection and sales.

Data Collection for the IOTA Marketplace

In a recent blog post the firm opened with a quote from 1999 from Nobel Prize winner Milton Friedman extolling the virtues of anonymously transferring funds on the internet, way before cryptocurrencies were even conceived. It continued to elaborate on the Iota ecosystem, its advantages over Bitcoin, and why it has been chosen as a partner.

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Nov 14, 2018

Apollo Astronaut claims Aliens PREVENTED a NUCLEAR WAR on Earth to ensure our existence

Posted by in categories: alien life, engineering, existential risks, military

The write up provides few sources but the phone interview with Mitchell on Fox News is good…

The Sixth Man to walk on the Moon – Edgar Mitchell made fainting claims about alien life when he stated that the existence of the alien visitors is kept a secret from the public, not due to fear of widespread disbelief, rather, a fear that the monetized interests of big business could go into a state of irrelevance if we were given a chance to harbor the technology.

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Nov 14, 2018

Ears Grown From Apples? The Promise of Plants for Engineering Human Tissue

Posted by in categories: biotech/medical, engineering, food

Inspiration for game-changing science can seemingly come from anywhere. A moldy bacterial plate gave us the first antibiotic, penicillin. Zapping yeast with a platinum electrode led to a powerful chemotherapy drug, cisplatin.

For Dr. Andrew Pelling at the University of Ottawa, his radical idea came from a sci-fi cult classic called The Little Shop of Horrors. Specifically, he was intrigued by the movie’s main antagonist, a man-eating plant called Aubrey 2.

What you have here is a plant-like creature with mammalian features, said Pelling at the Exponential Medicine conference in San Diego last week. “So we started wondering: can we grow this in the lab?”

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Nov 14, 2018

Stretchable thermoelectric coils for energy harvesting in miniature flexible wearable devices

Posted by in categories: biotech/medical, engineering, internet, wearables

Miniaturized semiconductor devices with energy harvesting features have paved the way to wearable technologies and sensors. Although thermoelectric systems have attractive features in this context, the ability to maintain large temperature differences across device terminals remains increasingly difficult to achieve with accelerated trends in device miniaturization. As a result, a group of scientists in applied sciences and engineering has developed and demonstrated a proposal on an architectural solution to the problem in which engineered thin-film active materials are integrated into flexible three-dimensional (3D) forms.

The approach enabled efficient thermal impedance matching, and multiplied heat flow through the harvester to increase efficient power conversion. In the study conducted by Kewang Nan and colleagues, interconnected arrays of 3D thermoelectric coils were built with microscale ribbons of the active material monocrystalline silicon to demonstrate the proposed concepts. Quantitative measurements and simulations were conducted thereafter to establish the basic operating principles and key design features of the strategy. The results, now published on Science Advances, suggested a scalable strategy to deploy hard thermoelectric thin-films within energy harvesters that can efficiently integrate with soft material systems including human tissue to develop wearable sensors in the future.

Thermoelectric devices provide a platform to incorporate ubiquitous thermal gradients that generate electrical power. To operate wearable sensors or the “Internet of Things” devices, the temperature gradient between the surrounding environment and the human body/inanimate objects should provide small-scale power supplies. Continued advances in the field focus on aggressive downscaling of power requirements for miniaturized systems to enhance their potential in thermoelectric and energy harvesting applications. Integrated processors and radio transmitters for example can operate with power in the range of subnanowatts, some recent examples are driven via ambient light-based energy harvesting and endocochlear potential. Such platforms can be paired with sensors with similar power to enable distributed, continuous and remote environmental/biochemical monitoring.

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Nov 9, 2018

New flexible, transparent, wearable biopatch, improves cellular observation, drug delivery

Posted by in categories: biotech/medical, engineering, wearables

Purdue University researchers have developed a new flexible and translucent base for silicon nanoneedle patches to deliver exact doses of biomolecules directly into cells and expand observational opportunities.

“This means that eight or nine nanoneedles can be injected into a single cell without significantly damaging a cell. So we can use these nanoneedles to deliver biomolecules into cells or even tissues with minimal invasiveness,” said Chi Hwan Lee, an assistant professor in Purdue University’s Weldon School of Biomedical Engineering and School of Mechanical Engineering.

A surgeon performs surgery on the back of a hand of a patient who has melanoma. Purdue researchers are developing a new flexible and translucent base for silicon patches to deliver exact doses of biomolecules directly into cells and expand observational opportunities. The researchers say skin cancer could be one of the applications for the patches.

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Nov 8, 2018

How science fared in the midterm elections

Posted by in categories: biotech/medical, engineering, government, science

This year, more candidates with degrees in science, medicine and engineering ran for Congress than ever before. Of the nearly two-dozen new candidates in this crop, at least seven won seats in the House of Representatives.

This year, scientists, doctors and engineers ran for office like never before. Here’s how they did.

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Nov 6, 2018

Japan Develops World’s First Test to Detect Cancer via Urine Samples

Posted by in categories: biotech/medical, engineering

Scientists in Japan have developed the world’s first test that can detect cancers in patient urine samples. The breakthrough technology by Japanese researchers from engineering firm Hitachi has been in development for two years and it may be made available by 2020.

According to Agence France-Presse, the research team will work with Nagoya University to analyze 250 urine samples to check for breast, colon, and childhood forms of the disease in central Japan. The experiments will begin this month and end in September.

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Nov 5, 2018

Scientists Are About to Redefine the Kilogram

Posted by in categories: engineering, particle physics, transportation

The kilogram is one of the most important and widely used units of measure in the world — unless you live in the US. For everyone else, having an accurate reading on what a kilogram is can be vitally important in fields like manufacturing, engineering, and transportation. Of course, a kilogram is 1,000 grams or 2.2 pounds if you want to get imperial. That doesn’t help you define a kilogram, though. The kilogram is currently controlled by a metal slug in a French vault, but its days of importance are numbered. Scientists are preparing to re define the kilogram using science.

It’s actually harder than you’d expect to know when a measurement matches the intended standard, even when it’s one of the well–define d Systéme International (SI) units. For example, the meter was originally define d in 1793 as one ten-millionth the distance from the equator to the north pole. That value was wrong, but the meter has since been re define d in more exact terms like krypton-86 wavelength emissions and most recently the speed of light in a vacuum. The second was previously define d as a tiny fraction of how long it takes the Earth to orbit the sun. Now, it’s pegged to the amount of time it takes a cesium-133 atom to oscillate 9,192,631,770 times. Again, this is immutable and extremely precise.

That brings us to the kilogram, which is a measurement of mass. Weight is different and changes based on gravity, but a kilogram is always a kilogram because it comes from measurements of density and volume. The definition of the kilogram is tied to the International Prototype of the Kilogram (IPK, see above), a small cylinder of platinum and iridium kept at the International Bureau of Weights and Measures in France. Scientists have created dozens of copies of the IPK so individual nations can standardize their measurements, but that’s a dangerous way to go about it. If anything happened to the IPK, we wouldn’t have a standard kilogram anymore.

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Nov 3, 2018

In a Land of Quakes, Engineering a Future for a Church Made of Mud

Posted by in categories: engineering, futurism

High in the Andes Mountains, conservators are testing traditional methods for strengthening adobe buildings.

The bell tower of the church of Santiago Apóstol in Kuño Tambo, Peru. Built by the Spanish in 1681, it has been weakened by earthquakes, but traditional techniques are helping with its restoration. Credit Credit Angela Ponce for The New York Times.

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Nov 3, 2018

Manta rays feed using ricochet separation, a novel nonclogging filtration mechanism

Posted by in categories: biological, engineering, particle physics

Solid-liquid filtration is a ubiquitous process found in industrial and biological systems. Although implementations vary widely, almost all filtration systems are based on a small set of fundamental separation mechanisms, including sieve, cross-flow, hydrosol, and cyclonic separation. Anatomical studies showed that manta rays have a highly specialized filter-feeding apparatus that does not resemble previously described filtration systems. We examined the fluid flow around the manta filter-feeding apparatus using a combination of physical modeling and computational fluid dynamics. Our results indicate that manta rays use a unique solid-fluid separation mechanism in which direct interception of particles with wing-like structures causes particles to “ricochet” away from the filter pores. This filtration mechanism separates particles smaller than the pore size, allows high flow rates, and resists clogging.

Several fundamental mechanisms for solid-fluid separation have been described in the biological and engineering literature, including sieve (1, 2), cross-flow (3–6), hydrosol , and cyclonic separation. Sieve filtration passes a mixture of particles and fluid through a structure with regularly sized pores, causing the particles to be retained while the fluid is drained. Although effective, sieve filters must have pore sizes smaller than the particle size, and they inevitably clog in use (2, 8, 9). Cross-flow filtration is similar to sieving, except that the incoming flow runs parallel rather than perpendicular to the filter. This configuration shears captured particles off the filter’s surface, which reduces but does not eliminate clogging (5, 6). Unlike sieve and cross-flow filters, hydrosol and cyclonic filtration do not require regularly sized pores.

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