Prof. Tandong Yao and Prof. Fahu Chen describe our growing understanding of climate change impacts in the “Pan-Third Pole” region, discussing both coping strategies and research initiatives focusing on the region.
Demographic challenges of regional development of Poland. The goals of the article are dichotomous. First of all, it is the recognition of the main problems of regional development in Poland, resulting from the current and forecast demographic and settlement situation, including depopulation and population aging. An increasing mismatch between jobs, housing, education and services, increasingly scattered and inefficient settlement and inefficiency of the administrative and territorial system in terms of income and expenditure balancing and ensuring an adequate standard of services resulting from the administrative hierarchization of the settlement network, territorial delimitation and spatial accessibility have been identified. Then, in the second place, an attempt was made to formulate remedial measures related mainly to the optimization of spatial development and stimulation of innovative economic growth based in particular on endogenous poles of growth. In the article, among others the results of the author’s research and analyzes were used, which were carried out for practical purposes for government diagnostic and strategic documents in the years 2000–2017 [incl. “Report of the spatial development of Poland”, “Concept of Spatial Development of Poland 2030”, “National Strategy for Regional Development 2010–2020”, delimitation of “State Intervention Strategic Areas: Growth Areas and Problem Areas” and “Responsible Development Strategy”].
To study the principle of loss and heat at the end region of large 4-poles nuclear power turbine generator, 3D transient electromagnetic field and 3D steady temperature field finite element (FE) models of the end region are established respectively. Considering the factors such as rotor motion, core non-linearity and time-varying of electromagnetic field, the anisotropic heat conductivity and different heat dissipation conditions of stator end region, a 50 Hz, 1150 MW, 4-poles nuclear power turbine generator is investigated. The loss and heat at the generator end region are calculated respectively at no-load and rated-load, and the calculation results are compared with the test data. The result shows that the calculation model is accurate and the generator design is suitable. The method is valuable for the research of loss and heat at the end region of large 4-poles nuclear power turbine generator and the improvement of the generator’s operation stability. The method has been applied successfully for the design of the larger nuclear power turbine generators.
The motto of Zofia Nałkowska’s short-story collection Medaliony [Medalions] – “People doomed people to this fate” [Polish, “Ludzie ludziom zgotowali ten los”] – as obvious as it may apparently seem, has aroused various controversies. Henryk Grynberg believed that the only right formula, the one that would do justice to those persecuted, would have been “People doomed Jews to this fate”. Recently, the discussion was resumed in a book on the portrayal of the Holocaust in Medaliony – Zagłada w „Medalionach” Zofii Nałkowskiej, edited by Tomasz Żukowski: one of its essays (by Żukowski and Aránzazu Calderón Puerta) notices that endeavours to universalise the Holocaust is at least premature for the Poles tending to avoid facing the truth about their own contribution to annihilation of the Jews. While the threads addressed in these debates are important, they disregard the beliefs and the system of values Nałkowska adhered to. The Polish novelist adopted the view that man and the pleasure he takes in inflicting pain is the actual cause of evil. This inclination revealed itself not only during the war. This more general observation was rooted in her knowledge of life, relations between people, and daily cruelty. Supported by an ideology and furnished with technical resources, the war added a historical dimension to this bent. Moreover, Nałkowska was definitely not one among those who stayed silent in respect of the Jewish victims. Conversely, a few of the stories in Medaliony speak exactly about this problem, never trying to conceal anti-Semitic attitudes among Poles.
The paper addresses the problem of constrained pole placement in discrete-time linear systems. The design conditions are outlined in terms of linear matrix inequalities for the Dstable ellipse region in the complex Z plain. In addition, it is demonstrated that the D-stable circle region formulation is the special case of by this way formulated and solved pole placement problem. The proposed principle is enhanced for discrete-lime linear systems with polytopic uncertainties.