G.Skill Ripjaws 4 DDR4-2800 Memory Module Set. Free Technical Library News

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G.Skill Ripjaws 4 DDR4-2800 Memory Kit

22.04.2015

G.Skill has unveiled what it calls the world's first 4GB DDR2800-128 memory module kit. The set includes eight modules with a capacity of 16 GB. The modules included in the kit operate at a supply voltage of 1,35 V with delays of CL16-16-16-36.

4 GB G.Skill Ripjaws 4 DDR2800-128 Kit Includes Eight Memory Modules
The modules use 8Gb memory chips manufactured by Samsung Electronics using 20nm technology.

The set can work in a four-channel configuration, which was demonstrated by the manufacturer using the Asus X99 Rampage V Extreme motherboard and Intel Haswell-E processor.

The new 16 GB modules are also available in other kits for effective frequencies from 2133 to 2800 MHz. All of them support the Intel XMP 2.0 standard.

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Acoustic control in the nanoworld 13.10.2023

Engineers from Germany and Switzerland presented innovative microrobots controlled by sound.

These devices respond to fluctuations in the external sound field by maneuvering in narrow tubes. This technology can be adapted for precise intravascular drug delivery and minimally invasive surgery.

The researchers were inspired by the mechanics of movement of spirochete bacteria when developing this concept. The cells of these microorganisms have a spiral shape and, moving in a viscous liquid, move forward.

Engineers have created microrobots using similar principles of movement. Using a 3D printer, they made a microscopic vortex mechanism from a non-toxic polymer measuring 350 microns in length and 100 microns in diameter. The device was placed in a glass tube filled with water. Under the influence of an external acoustic field, the liquid molecules vibrate, creating a vortex that moves the robot forward.

In a series of experiments, scientists demonstrated that by changing the characteristics of sound waves, it is possible to control the speed and direction of the robot's movement. The microrobot responds to sound stimuli with a frequency of 12 to 19 kHz. As the frequency of sound vibrations increases, the robot moves up the pipe, inclined at an angle of 45°.

Scientists around the world are working to develop various systems for precise drug delivery. One common solution is microrobots controlled by a magnetic field. But this approach has challenges and limitations, such as complex manufacturing and massive control equipment. Sound-controlled robots are seen by engineers as a promising alternative solution.

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