The notch in the sample affects the results of the impact test, thus it is necessary for the notch to be of regular dimensions and geometry. The size of the sample can also affect results, since the dimensions determine whether or not the material is in plane strain. This difference can greatly affect conclusions made.
At any point if you would like to enable touch screen functionality again, simply go back to the Device Manager, right-click HID compliant touch screen, and select Enable. Remember, you will be required to restart your PC to enable the touch screen functionality again.
1 Click System Tools. 2  Click Activate Windows. 3  Click Use the automated phone system to activate. 4  Click the drop-down menu, select the location that is nearest to you, and then click Next. 5  The Product Activation Center telephone number is displayed at the top of the window.o start the Product Activation Wizard, follow these steps: 1  At the Start screen, swipe in from the right side, or hover your mouse in the upper-right corner of the screen to display the charms menu. 2  Tap or click the Settings charm. 3  Tap or click Change PC Settings. 4  Tap or click Activate Windows.