GUIDE TO CHOOSING THE RIGHT AGRI PHOTOVOLTAIC MOUNTING SYSTEM

The aim of this work is to create a guide for the selection and planning of an agri-photovoltaic mounting system. The mounting systems available on the market were analyzed and those that can be used in agri-photovoltaics were selected. Since there are many mounting systems on the market and there are hardly any technical differences between them, four systems were selected and described in this work. The systems are those that almost every manufacturer offers in a modified form. Three of the four systems are produced by the same manufacturer "ZIMMERMANN PV-Stahlbau GmbH & Co. KG", while the remaining system is produced by the manufacturer "Next2Sun GmbH". Through this collected knowledge about mounting systems, it was possible to create a questionnaire, which was then sent to farmers. The online questionnaire was sent via e-mail to the desired target group throughout Austria. It was sent to as many farmers as possible in order to obtain a large database. The data resulting from the questionnaire made it possible to create a guideline to support technicians in the planning of new Agri-PV systems.

Effect of Pericytes on Cerebral Microvasculature at Different Time Points of Stroke

Pericyte, as an important component of the blood-brain barrier, has received increasing attention in the study of cerebrovascular diseases. However, the mechanism of pericytes after the occurrence of cerebral ischemia is controversial. On the one hand, the expression of pericytes increases after cerebral ischemia, constricting the blood vessels to restrict blood supply and aggravating the damage caused by ischemia; on the other hand, pericytes participate in capillary angiogenesis in the ischemic area, which facilitates the repair of the ischemic injury area. The multifunctionality of pericytes is an important reason for this phenomenon, but the different time points of observation for the outcome indicators in each study are also an important factor that leads to the controversy of pericytes. Based on the review of a large database of original studies, the authors’ team summarized the effects of pericytes on cerebral microvasculature at different time points after stroke, searched the possible markers, and explored possible therapeutic.

Efficient Characterization of Quantum Evolutions via a Recommender System

We demonstrate characterizing quantum evolutions via matrix factorization algorithm, a particular type of the recommender system (RS). A system undergoing a quantum evolution can be characterized in several ways. Here we choose (i) quantum correlations quantified by measures such as entropy, negativity, or discord, and (ii) state-fidelity. Using quantum registers with up to 10 qubits, we demonstrate that an RS can efficiently characterize both unitary and nonunitary evolutions. After carrying out a detailed performance analysis of the RS in two qubits, we show that it can be used to distinguish a clean database of quantum correlations from a noisy or a fake one. Moreover, we find that the RS brings about a significant computational advantage for building a large database of quantum discord, for which no simple closed-form expression exists. Also, RS can efficiently characterize systems undergoing nonunitary evolutions in terms of quantum discord reduction as well as state-fidelity. Finally, we utilize RS for the construction of discord phase space in a nonlinear quantum system.