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Rugged PC Connect Tech ESG501

30.03.2016

Connect Tech has unveiled the ESG501 Computing System, housed in a highly rugged enclosure. The basis of the novelty was the Nvidia Jetson TX1 module based on 64-bit ARM Cortex-A57 CPU cores and a 256-core Maxwell architecture GPU.

The Connect Tech ESG501 enclosure protects electronics from dust and liquid ingress when operating at depths greater than 1m, meeting the IP68 standard. Shock and vibration protection complies with military standards MIL-STD 810G and DO-160G, operating temperature range -40°C to 85°C. With dimensions of 163,6 x 108 x 96,3 mm (without mounting brackets), the weight of the device is 1,43 kg.

In addition to being ready for adversity, the Connect Tech ESG501 Mini PC boasts a wide range of connectors. Their list includes an HDMI port, two USB 2.0, one RS-232, four CSI-2 using SMA mounts, two Gigabit Ethernet ports, and antenna mounts for an 802.11ac 2?2 Wi-Fi adapter and Bluetooth 4.0. Power is supplied from an external PSU with a voltage of 9-36 V.

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Water freezing point record broken 01.01.2022

Knowing how and why water turns to ice is essential to understanding a wide range of natural processes. Climate fluctuations, cloud dynamics and the water cycle are affected by the transformation of water and ice, as are animals living in freezing conditions.

Tree frogs, for example, survive the winter on land by allowing their bodies to freeze. This allows them to emerge from hibernation faster than species that hibernate deep underwater without freezing. But ice crystals can rupture cell membranes, so animals that use this technique need to find a way to prevent ice from forming in their cells and tissues. A better understanding of how water freezes can lead to a better understanding of these extreme species.

Although the rule of thumb is that water freezes at 0 degrees Celsius, water can remain liquid in the low temperature range under certain conditions. Until now, it was believed that this range stopped at minus 38 degrees Celsius. A little lower - and the water should freeze. For the first time, researchers have managed to keep water droplets in a liquid state at temperatures down to -44 degrees Celsius.

The opening was aided by very small droplets and a very soft surface. They started with droplets ranging in size from 150 nanometers, slightly larger than an influenza virus particle, to two nanometers, a cluster of just 275 water molecules. This range of droplet sizes has helped researchers unravel the role of size in the transformation of water into ice.

Since it is virtually impossible to observe the freezing process on such a small scale, the researchers used measures of electrical conductivity - since ice is more conductive than water - and light emitted in the infrared spectrum to capture the exact moment and temperature at which droplets transform from water to ice.

It has been found that the smaller the drop size, the colder it must be for ice formation, and for droplets 10 nanometers in size and smaller, the rate of ice formation drops sharply. In the smallest droplets they measured, ice did not form until the water reached -44°C.

The discovery could go a long way in preventing icing of man-made materials such as aviation and power systems, Ghasemi said. If water takes longer to freeze on soft surfaces, engineers can incorporate a mixture of soft and hard materials into their designs to keep ice from forming on those surfaces.

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