Showing posts with label application. Show all posts
Showing posts with label application. Show all posts

Soon, wrap your smartphone on the wrist

Soon, wrap your smartphone on the wrist

Soon you may be able to use your smartphone on your wrist or bend your computer to fit in your pocket!

Researchers have taken a step towards more flexible devices by fabricating a thin film that keeps her even when very curved electric and magnetic properties useful.

Flexible electronics have been difficult to manufacture because many materials with useful electronic properties tend to be rigid.

Researchers have addressed this problem by taking small pieces of material such as silicon and embedded in the flexible plastic.

A team of physicists and engineers from South Korea took the same approach with bismuth ferrite (BiFeO3) - one of the most promising materials whose properties can be controlled with a magnetic field, and vice versa.

These materials are called multiferroic and attract interest for applications such as energy efficient, instant-on computing.

The researchers synthesized bismuth ferrite nanoparticles and mixed in a polymer solution. The solution was dried in a series of steps at increasing temperatures to produce a thin, flexible film.

When the researchers tested the electrical and magnetic properties of the film they found that their new material did much more than preserving the useful properties of bismuth ferrite more - it actually made them better.

And the improved properties are maintained even when the film curled into a cylindrical shape.

"Bulk bismuth ferrite is crucial problems for some applications, such as a high leakage current hampering strong electrical properties," said YoungPak Lee, a professor at Hanyang University in Seoul, South Korea.

Mixed bismuth ferrite nanoparticles in an improved polymer leakage current problem, he said, and gave the film, flexible tensile properties.

Flexible Multiferrorics could allow new portable devices such as surveillance equipment health or virtual reality attire, Lee said.

The multiferroric materials could be used in high density, energy efficient memory and switches on these devices, he said.

The research was published in the journal Applied Physics Letters.

iOS 8 How to: Monitor and track your battery usage

iOS 8 How to: Monitor and track your battery usage

 Have you ever wondered how much your battery is being used? Or have you ever wondered why sometimes when you use certain applications dramatically drains the battery? New in iOS 8 Configuration application is the ability to track usage of the battery for each application you have installed on your device. This method is very similar to track your cellular data usage. 

In iOS 7, which shows how much the battery has been used and how long the battery was on alert since last full charge, but does not define or describe how it was made. To monitor and track your battery usage on iOS 8, ​​first go to Settings.

iOS 8 How to: Monitor and track your battery usage 1
Then tap on General and after use.

iOS 8 How to: Monitor and track your battery usage 2
iOS 8 How to: Monitor and track your battery usage 3


                 
With iOS 8 by default, the battery percentage off. I recommend turning it on, and they immediately give you a better idea of what your battery life is so contrary to the image of the battery.

Touching on battery usage, is displayed the first time since last full charge. This information was available in iOS 7 Shows you use, how long has actually been committed to using the device and the screen will display pending the time the device has been idle and has not been used.

iOS 8 How to: Monitor and track your battery usage 4
f moves down further, there are suggestions to increase battery usage. One suggestion would be to reduce the brightness of the disply. Personally, I have my devices set to maximum brightness. I want to be able to fully enjoy the high definition Retina screen on my iPhone 6 and not force my eyes. As for the screen, another suggestion would be to allow automatic brightness automatically adjusts the screen brightness according to your environment. Another suggestion might show is to turn Wi-Fi. Using Wi-Fi to access the data, it uses less battery power a cellular network connection.

Also, you will see a list of applications and see how much the application uses the battery. This information can help you determine if you are constantly using certain applications or could be due to background activity. You can see the battery usage in the last 24 hours, or in the last 7 days.

iOS 8 How to: Monitor and track your battery usage 6iOS 8 How to: Monitor and track your battery usage 5
























There are several reasons application use a lot of battery: 


  1. The application is constantly being used by you. In my example above, is precisely the case of Tweetbot. 
  2. The application is being used in the background. It could be the content download, upload content, use location services or streaming audio. In my example, the mail application is downloading new emails in the background. 
  3. The application is being used in an area with poor cell service. When this happens, it gets more work and drains the battery quickly. If this happens, the phone application appears in the list and a list of low signal appears. 
  4. The application does not work properly. For example, the application may be constantly crashing. Or just the application that is used, but however, is in the top of the list. 
  5. The application is using AirPlay. The application is audio streaming to AirPlay speakers or video to an Apple TV. 

By using this tool, a usage percentage is a percentage of the battery being used. For example, if your iPhone has 80% battery but lists that music has been used for 50%, that means that the music uses 10% of battery power. This tool must be used occasionally. I recommend checking that when you think that there are problems with the battery, which is faster than normal drainage, which then gives you an idea on how to solve any of the applications that are draining the battery.