This thesis studies the positions of the political groups in the European Parliament by examining the debates, focusing on the question of migration and more specifically on the policy of relocation of migrants. With the increasing number of people migrating into Europe, migration is an important question to study in the context of the European Union. The European Parliament consists of 200 different national parties composed in eight different political groups trying to agree upon common policies for legislation, which makes the political battle taken place in the Parliament even more interesting.    This thesis seeks to describe the positions of the groups within the Parliament by using dimensions and categories of state security vs. human security and EU-integration vs. state sovereignty. The study finds that a majority of the party groups in the Parliament emphasises further integration, however there is a more evident difference between seeing the issue of migration as a state security or a human security matter between the political groups. These findings are interesting, demonstrating that even in a sensitive issue as migration, related to states’ sovereignty, a majority seems to emphasise cooperation between states, indicating that further cooperation may be taken in other policy areas as well.    Key words: European Union, European Parliament, European integration, Migration, Security, Securitization, Human security, Human rights, State sovereignty, Dimension analysis.

The response of beams resting on viscoelastically damped foundation under moving SDoF oscillators is scrutinized through a novel state-space formulation, in which a number of internal variables is introduced with the aim of representing the frequency-dependent behaviour of the viscoelastic foundation. A suitable single-step scheme is provided for the numerical integration of the equations of motion, and the Dimensional Analysis is applied in order to define the dimensionless combinations of the design parameters that rule the responses of beam and moving oscillator. The effects of boundary conditions, span length and number of modes of the beam, along with those of the mechanical properties of oscillator and foundation, are investigated in a new dimensionless form, and some interesting trends are highlighted. The inaccuracy associated with the use of effective values of stiffness and damping for the viscoelastic foundation, as usual in the present state-of-practice, is also quantified.

В современном машиностроении трудоемкость сборочных работ составляет 30-40% и более от общей трудоемкости изготовления изделия. В условиях, когда большинство предприятий использует устаревшие технологические процессы. Перед предприятиями возникла проблема модернизации производства по современным требованиям. Для этого требуется изменение технологии изготовления деталей, плановых объемных и календарных показателей. Актуальность темы обусловлена необходимостью России вступить в пятый и шестой технологический уклад. Цели данной научно-исследовательской работы: оптимизация технологического процесса, выявление узких мест и их нивелирование, устранение простоев и недостатков существующей схемы модели, возможное увеличение производительности. Областью применения может являться любое предприятие. данные аналитические методы возможно применять на всех машиностроительных предприятиях, но в данный момент их применяют только передовые компании. / In modern mechanical engineering, the labor intensity of assembly work is 30-40% or more of the total labor intensity of the product. In a situation where most enterprises use outdated technological processes. Enterprises faced the problem of modernizing production according to modern requirements. To do this, you need to change the manufacturing technology of parts, planned volume and calendar figures. The objectives of this research work are: Refinement of the technological process designed in the first section; - Identification of bottlenecks and their levelling; Eliminate downtime and deficiencies of the existing model layout; - Possible productivity boosting. An application field can be every enterprise. These analytical methods can be used in all engineering enterprises, but at the moment they are used only by advanced companies.)

Invasive plants can displace native species, deteriorate native forest, and change plant communities and ecosystem functions. Native plant populations are fundamentally impacted by invasive species because of the interactions between invasive species and native plants. This study focuses on understanding the extent, mechanisms and consequences of interaction between a non-indigenous invader Ailanthus altissima and its functionally similar native species Robinia pseudoacacia in the Mid-Appalachian region, from an individual scale to a regional scale. These two subject species are common and coexist in early-successional eastern deciduous forest. The interactions between these two common species are important to community structure and canopy tree regeneration. To address the type and extent of interactions of these two species, a greenhouse experiment utilizing various species proportions, nutrient levels and seed sources was performed. In addition, a common-garden experiment with various species densities and proportions over three consecutive growing seasons was performed in a more natural condition than that of the greenhouse experiment. We found at the seedling stage, the dominant interaction was competition, and R. pseudoacacia was the winner both above- and belowground. The allelopathic compounds of A. altissima may have inhibited nodulation of R. pseudoacacia. Ailanthus altissima seedlings from its native region had slightly stronger competitive abilities compared with the seedlings from its invaded range. In the common garden experiment, R. pseudoacacia plants grew quicker than A. altissima, but A. altissima inhibited the growth of R. pseudoacacia by interspecific competition. The negative impact of A. altissima on R. pseudoacacia became larger as time progressed. To assess the community-level consequences of the two species, we conducted a forest mapping and a complete target-tree-based forest survey, and analyzed regional-scale data from the Forest Inventory Analysis Data Base. The two target species were significantly associated with themselves and with each other. Community species composition and diversity were significantly different across sites. A negative impact of both species on the understory community diversity and tree regeneration at the neighborhood scale was detected; while at a regional level, tree diversity in the FIA plots with either A. altissima or R. pseudoacacia was higher than the reference plots. / Ph. D.