The transition to a zero-carbon economy is the inclusive growth story of the twenty-first century. It needs to be managed with effective and cohesive policies, whilst recognizing that sustainable development, inclusive growth and climate action are interwoven and mutually supportive.
The problem of zeroing of the state variables in fractional descriptor electrical circuits by state-feedbacks is formulated and solved. Necessary and sufficient conditions for the existence of gain matrices such that the state variables of closed-loop systems are zero for time greater zero are established. The procedure of choice of the gain matrices is demonstrated on simple descriptor electrical circuits with regular pencils.
Presented article contain the teachers opinions of the perceived social expectations in relation to their own expectations of both the institutions of school and local educational authorities. The starting point is a thesis that asymmetrical and disproportionate expectations conducive to the construction of the reduced school reality a specified group of students. as reality shows school does not always reflect the social expectations, which is closely connected with the attitudes of teachers in mainstream schools. however, their expectations of working conditions and the same students with disabilities often remain inconsistent. To identify and interpret the reality that create the appearance of the school, the topic is examined in the context of the concept of the reduced space and the theory of games.
Although the explicit commutativitiy conditions for second-order linear time-varying systems have been appeared in some literature, these are all for initially relaxed systems. This paper presents explicit necessary and sufficient commutativity conditions for commutativity of second-order linear time-varying systems with non-zero initial conditions. It has appeared interesting that the second requirement for the commutativity of non-relaxed systems plays an important role on the commutativity conditions when non-zero initial conditions exist. Another highlight is that the commutativity of switched systems is considered and spoiling of commutativity at the switching instants is illustrated for the first time. The simulation results support the theory developed in the paper.