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Mussel-strong glue bonds underwater sensors
Even the strongest glues collapse when soaked. Just watch a plaster slide off a finger or toe whilst in the shower. However, with support from the Office of Naval Research (ONR), one researcher has developed a nature-inspired adhesive that stays sticky when wet.

Dr. Bruce Lee, an assistant professor of biomedical engineering at Michigan Technological University, is using a protein produced by mussels to create a reversible synthetic glue that not only can bond securely underwater – but also may be turned on and off with electricity.

http://news.scubatravel.co.uk/mussel-strong-glue-bonds-underwater-sensors.html
Photo credit: Brocken Inaglory, CC BY-SA 3.0
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Novel Sensing Technologies Present Growth Opportunities across Industries
The sensors and instrumentation technologies need to: achieve a high signal-to-noise ratio; minimise false positives and negatives; consume less power; enhance accuracy of sensed data; and be fit for operation across a wide temperature range in order to fulfill their growth opportunities. That's according to a new report from Frost and Sullivan.
http://ww2.frost.com/news/frost-commentary/novel-sensing-technologies-present-growth-opportunities-and-increase-connectivity-across-industries/
2016 Top Technologies in Sensors and Instrumentation is part of the TechVision (Sensors & Instrumentation) Growth Partnership Service programme. The study looks at technologies that are poised to have the highest impact over the next two to three years, such as nanosensors; next-generation, real-time location systems (RTLS); commercial drones; biosensors; and terahertz (THz) sensing. Understanding the impact of these technologies on businesses wi...
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Read our underwater automation news stories on SCUBA News
http://news.scubatravel.co.uk/author/windmill-software/

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Latest issue of Monitor ( ISSN 1472-0221) - the data acquisition and control newsletter - now up at http://www.windmill.co.uk/monitor218.html
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Mix of Graphene With 'Silly Putty' Yields Extremely Sensitive Sensor
Mixing graphene-a material made of single-atom-thick layers of carbon-with homemade "Silly Putty" produces a sensor so sensitive that it can detect the tiny footsteps of spiders, according to new research at Trinity College Dublin
https://www.tcd.ie/news_events/articles/scientists-use-graphene-and-toy-silly-putty-to-make-state-of-the-art-sensors/7469
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Learning Morse Code without Trying

Researchers at the Georgia Institute of Technology have developed a system that teaches people Morse code within four hours using a series of vibrations felt near the ear. Participants wearing Google Glass learned it without paying attention to the signals - they played games while feeling the taps and hearing the corresponding letters. After those few hours, they were 94 percent accurate keying a sentence that included every letter of the alphabet and 98 percent accurate writing codes for every letter.

http://www.news.gatech.edu/2016/10/27/learning-morse-code-without-trying
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Sensing the stresses in advanced composite structures
http://www.bristol.ac.uk/news/2016/november/advanced-composite-structures.html
Advanced composites such as glass fibre reinforced polymers are light, stiff, strong, durable materials that can be flexibly shaped to build large load-bearing structures. New research using data logged from sensors on a GFRP structure has found it is possible to directly observe stresses in advanced composite structures.
Press release issued: 23 November 2016. Advanced composites such as glass fibre reinforced polymers (GFRPs) are light, stiff, strong, durable materials that can be flexibly shaped to build large load-bearing structures. New research using data logged from sensors on a GFRP structure at the 2016 ...
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Shaking Things Up With More Control

This month, Samsung recalled 2.8 million top-loading washing machines due to excessive vibrations that could cause the top to break off -- a problem that led to at least nine reported injuries. The vibrations happen when the normal oscillations of the washing machine become trapped in resonance, causing it to shake harder and harder at the resonant frequency.

It's a problem that doesn't just afflict washing machines. It can be an issue with all kinds of machines that rely on vibrations and oscillations, such as industrial shaking devices used to separate different-sized gravel and other raw materials, or riddling machines that loosen the sediment stuck on the insides of a champagne bottle and make the debris easier to remove.

But now researchers have developed an algorithm that could help machines avoid getting trapped in this resonant motion. Using a combination of computer simulations and experiments, the researchers found that by carefully increasing and decreasing the speed of a rotor, they could nudge it past its resonant frequency. The rotor doesn't get stuck in resonance like the faulty washing machine.

http://www.newswise.com/articles/shaking-things-up-with-more-control
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If, in Excel, you create a link to a cell, eg =F3, then insert a column before column F, your formula will automatically change to =G3. This occurs even when you use absolute references like =$F$3. To prevent this change, use the INDIRECT function.

For example, if you wanted to sum part of a row of cells, instead of using

=SUM(F6:Z6)

you would use

=SUM(INDIRECT("F6:Z6"))

Now if you insert a new column the formula will still refer to the original values.

http://www.windmill.co.uk/excel/excel-tips.html
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‘Sensing Skin’ Detects Cracks, Harmful Chemicals in Structures
Researchers have developed a multi-layered “sensing skin” to detect corrosive or otherwise harmful substances in structures. The skin can also detect cracks and other structural flaws that are invisible to the naked eye.
https://news.ncsu.edu/2016/10/sensing-skin-detects-cracks-2016/
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Robomussels monitor climate change
http://news.scubatravel.co.uk/robomussels-monitor-climate-change.html
Tiny robots have been helping researchers study how climate change affects biodiversity. Developed by Northeastern University scientist Brian Helmuth, the “robomussels” have the shape, size and colour of actual mussels, with miniature built-in sensors that track temperatures inside the mussel beds.

For the past 18 years, every 10 to 15 minutes, Helmuth and a global research team of 48 scientists have used robomussels to track internal body temperature, which is determined by the temperature of the surrounding air or water, and the amount of solar radiation the devices absorb. They place the robots inside mussel beds in oceans around the globe and record temperatures. The researchers have built a database of nearly two decades worth of data enabling scientists to pinpoint areas of unusual warming, intervene to help curb damage to vital marine ecosystems, and develop strategies that could prevent extinction of certain species.
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Data Acquisition and Control with Windows Software. Publisher of the Monitor newsletter - ISSN 1472-0221.
Introduction
Using a PC for data acquisition and control. Home of Windmill ComDebug, the free software to monitor RS232, RS485, RS422, Modbus, TCP/IP, Ethernet and Internet devices.

Our web site - http://www.windmill.co.uk/ - gives loads of tutorials and articles on making measurements: ask our advice on your logging and control project. Or visit our internet data acquisition shop.

For over 20 years Windmill Software has been providing people with cost-effective measurement and control systems. Our free and low-cost software programs have helped thousands of scientists and engineers log data from instruments and devices on their PCs, and send data to applications like Excel in real-time.

Since 1998 we've published the Monitor newsletter - ISSN 1472-0221 - a monthly publication on instrumentation and control. We offer free data acquisition software to subscribers.