Max Velocity Tactical

Your Ad Here - Email for Info

Recent Posts

Pages: 1 2 3 4 5 6 7 8 9 10
Chatter / Re: Hope Everybody Had a Wonderful Turkey Day
« Last post by Ken on November 27, 2015, 11:20:10 AM »
Wish everyone a belated, Happy Thanksgiving, and a Happy Black Friday.

Me, everything was fine, except missed out on Honey Ham.......

Gonna see what Cyber Monday brings.....
Electronics / New ‘Self-Healing’ Gel Makes Electronics More Flexible
« Last post by Ken on November 27, 2015, 11:08:34 AM »

University of Texas at Austin

[size=1.125rem]AUSTIN, Texas — Researchers in the Cockrell School of Engineering at The University of Texas at Austin have developed a first-of-its-kind self-healing gel that repairs and connects electronic circuits, creating opportunities to advance the development of flexible electronics, biosensors and batteries as energy storage devices.[/size][/color]

Self-repaired supergel supports its own weight after being sliced in half.[size=1.125rem]Although technology is moving toward lighter, flexible, foldable and rollable electronics, the existing circuits that power them are not built to flex freely and repeatedly self-repair cracks or breaks that can happen from normal wear and tear.[/size][/color]
[size=1.125rem]Until now, self-healing materials have relied on application of external stimuli such as light or heat to activate repair. The UT Austin “supergel” material has high conductivity (the degree to which a material conducts electricity) and strong mechanical and electrical self-healing properties.[/size][/color]
[size=1.125rem]“In the last decade, the self-healing concept has been popularized by people working on different applications, but this is the first time it has been done without external stimuli,” said mechanical engineering assistant professor [/size][/color]Guihua Yu, who developed the gel. “There’s no need for heat or light to fix the crack or break in a circuit or battery, which is often required by previously developed self-healing materials.”
[/size][size=1.125rem]Yu and his team created the self-healing gel by combining two gels: a self-assembling metal-ligand gel that provides self-healing properties and a polymer hydrogel that is a conductor. A paper on the synthesis of their hydrogel appears in the November issue of [/size]Nano Letters.
[/size][size=1.125rem]In this latest paper, the researchers describe how they used a disc-shaped liquid crystal molecule to enhance the conductivity, biocompatibility and permeability of their polymer hydrogel. They were able to achieve about 10 times the conductivity of other polymer hydrogels used in bioelectronics and conventional rechargeable batteries. The nanostructures that make up the gel are the smallest structures capable of providing efficient charge and energy transport.[/size][size=1.125rem]
[/size][size=1.125rem]In a separate paper published in [/size]Nano Letters in September, Yu introduced the self-healing hybrid gel. The second ingredient of the self-healing hybrid gel is a metal-ligand supramolecular gel. Using terpyridine molecules to create the framework and zinc atoms as a structural glue, the molecules form structures that are able to self-assemble, giving it the ability to automatically heal after a break.
[/size][size=1.125rem]When the supramolecular gel is introduced into the polymer hydrogel, forming the hybrid gel, its mechanical strength and elasticity are enhanced.[/size][size=1.125rem]
[/size][size=1.125rem]To construct the self-healing electronic circuit, Yu believes the self-healing gel would not replace the typical metal conductors that transport electricity, but it could be used as a soft joint, joining other parts of the circuit.[/size][size=1.125rem]
[/size][size=1.125rem]“This gel can be applied at the circuit’s junction points because that’s often where you see the breakage,” he said. “One day, you could glue or paste the gel to these junctions so that the circuits could be more robust and harder to break.”[/size][size=1.125rem]
[/size][size=1.125rem]Yu’s team is also looking into other applications, including medical applications and energy storage, where it holds tremendous potential to be used within batteries to better store electrical charge.[/size][size=1.125rem]
[/size][size=1.125rem]Yu’s research has received funding from the National Science Foundation, the American Chemical Society, the Welch Foundation and 3M. [/size][size=1.125rem]
[/size][size=1.125rem]For more information, contact: [/size]Ashley Lindstrom, Cockrell School of Engineering, 512-232-7121.
Chatter / Hope Everybody Had a Wonderful Turkey Day
« Last post by Bill Quick on November 27, 2015, 10:49:59 AM »
Since I don't like turkey, I had duck -  Peking Duck.  And boy, was it ever good:
News Items / Re: Who Needs Bolt Cutters When You Can Burn Through Locks At 5,000 Degrees?
« Last post by Ken on November 24, 2015, 01:23:01 PM »
pictures of the tec torch
General Discussions / Re: ISIS Threat in U.S.
« Last post by Langenator on November 24, 2015, 12:17:40 PM »
I just read through the NORTHCOM/ARNORTH holiday threat briefing.  Pretty much everything is FOUO, but the gist is that there are no specific directed threats indicated at this time, but large gatherings, public holidays events, etc, are a higher threat.

I did notice that they actually used the term "Radical Islamist," something POTUS and all the Dem Pres candidates refuse to do.  Also included a whole page on ISIS.
News Items / Re: Is China Heading to a 1930s-Style Crash?
« Last post by Langenator on November 24, 2015, 08:23:48 AM »
More people have died in Chinese civil wars (although I think some of those are only "civil wars" in that they are contained within what is now thought of as China, and would more properly be thought of as wars of conquest fought between two ethnically similar groups (like Austrians and Prussians)) than in all of mankind's other wars.

Any break up had the potential to be quite messy.

WASHINGTON, DC—A small company from Utah has developed a composite material that combines carbon fibers with a nickel coating. The result is an extremely lightweight electric-conducting material with the properties of plastic. And now that material is being used to create cases and computer enclosures that are essentially lightweight Faraday cages—containing electromagnetic radiation from digital devices and shielding them from electronic eavesdropping or electromagnetic pulse attacks. Ars got a brief hands-on with some of the materials at the Association of the United States Army expo this week.

Conductive Composites

News Items / Re: Is China Heading to a 1930s-Style Crash?
« Last post by Ken on November 24, 2015, 05:05:53 AM »
Well, once upon a time, China was really into communism, because they were really into big families, and it's not such a "Great Leap"(heh) to communism.  But, after many decades of population control, not so much....

Now, the ChiCom's are into preserving...ChiCom's.  Problem with that, is the ChiCom's only really control Beijing(Shanghai) area.  The national government is having a really tough time, controlling the rest of the country. (It's now just about standard procedure, for the local area government's to ignore the big government projects, and do their own thing.)  GuangDong (Hong Kong, Macau, etc)  is going great guns, with industry and tech. the more Western, inland areas are doing weird things, like Organ-legging...(shudder)

Talk about a Technocratic Feudalism......with a lot of the Red Army Generals, acting like Warlords.....

I'd be surprised, if China didn't split into at *least* five countries.


Quote from: Dale00 on November 23, 2015, 08:27:24 PMThe Tulsa World has come out with a story that contradicts the bluster of the KFOR news article. According to a USGS geophysicist the maximum likely quake magnitude is only 6.0. And he points out that reduced salt water injection activity has greatly reduced quake incidents - it is a manageable situation and is being managed.

Problem is, there's good evidence that the earthquakes are caused by "springback" AFTER a cold winter, and nothing to do with salt water injections.  Also when the New Madrid Fault, ripped, it was so bad, that there was severe liquefaction. (land ran like water)  So a lot of mini-quakes are a good thing.  New Madrid isn't that far from Oklahoma, and had a  Mag. 8.2 earthquake.  NMFZ is also 150 miles long.

Scenarios / Re: The Cold Cometh
« Last post by Ken on November 24, 2015, 01:30:21 AM »

Ya'll realize, this is supposed to just be a Scenario, and I was hoping for more time......
Pages: 1 2 3 4 5 6 7 8 9 10

Your Ad Here - Email for Info
Help Support
Even A Buck Makes A Difference!
Or Make Convenient Monthly
Donations By Selecting
A Payment Option
Payment Options