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Integration of electric vehicles with the home power system

24.06.2018

Audi will offer future owners of its e-tron electric cars an intelligent battery pack recharging system.

We are talking about the integration of an electric car with a home power system. The standard compact charger delivers up to 11 kW, while the optional Connect system doubles this to 22 kW. To use the Connect system, the car can be equipped with an additional charger. In addition, this system connects to the home infrastructure via a Wi-Fi network, working in conjunction with energy management tools (HEMS).

The combination of Connect and HEMS allows you to optimize the process of recharging an electric car, taking into account the most favorable electricity rates (for example, at night) and individual needs of the owner, such as departure time and required battery level. The Connect system receives fare information via HEMS or uses data entered manually by the customer.

If the household is equipped with solar panels, the charging process can be configured to give preference to photovoltaic energy. In this case, the weather forecast for the next few days is taken into account, as well as the current flow of electricity at the point where the house is connected to the mains.

The system takes into account the energy consumption of other consumers in the process of operation. This prevents overloading the home electrical network and tripping the emergency switch.

In general, charging always takes place at the maximum power that the home electrical system and vehicle allow. The customer can view charging statistics and track the progress on the myAudi portal and on the myAudi mobile app.

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Studying the features of remembering terrible events, scientists from Linkoping University have identified an enzyme that affects anxiety and addiction to alcohol.

Certain areas of the brain are especially important for processing fear-related memories. For example, the amygdala, which is activated in case of danger and cooperates with the prefrontal cortex. All of them start the process of regulating emotions.

"We know that the network of nerve cells connecting the frontal lobes to the amygdala is involved in fear responses. The connections between these brain structures change in people with post-traumatic stress disorder and other anxiety disorders," said Estelle Barbier, study leader and associate professor at the Center for Social and Affective Neuroscience (CSAN) and the Department of Biomedical and Clinical Sciences (BKV) at the University of Linköping.

However, the molecular mechanisms involved remained unknown for a long time. In the new study, the scientists found and analyzed the PRDM2 protein, an epigenetic enzyme that represses the expression of many genes. PRDM2 levels have been found to decrease in alcohol dependence, leading to exaggerated stress responses.

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The team of scientists was also able to identify genes that affect the reduction of PRDM2 levels. According to them, this leads to an increase in the activity of nerve cells connecting the frontal lobes and the amygdala.

Patients with anxiety disorders may benefit from treatment that reduces or erases memories of fear. The biological mechanism we have identified involves downregulation of PRDM2, and we currently have no way to increase this. But this mechanism may be part of the explanation for why some people are more vulnerable to developing anxiety-related conditions. It may also explain why these conditions and alcohol addiction are so often found together.

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