The Demographic Characteristics of the historic districts of Eger according to selected indexes

Eger az Észak-Magyarország régió második legnépesebb települése; központi funkciókkal rendelkező igazgatási, gazdasági, oktatási, egészségügyi, kulturális és egyházi központ. Jól elkülöníthető, jellegzetes településrészekből áll, amelyek demográfiai jellemzői is igen eltérőek. Legnépesebb lakófunkciójú területeinek népességszáma több tízszeresen múlja felül az egyéb funkciójú városrészekét. Az elöregedő városok közé tartozik, fiatalosabb korösszetételű északi területei társadalmi szempontból nem homogének, sőt jelentősen különböznek egymástól: magas, illetve alacsony státuszú lakosságot magas arányban koncentráló részeket egyaránt találunk itt. Egerben az országos átlagnál magasabb az iskolázottsági szint, viszont ebből a szempontból is nagymértékű területi differenciák figyelhetők meg (Rác Hóstya, Felnémet, Felsőváros versus Almagyardomb, belváros). ----- Eger is the second largest settlement of the North Hungarian Region, it has central functions in administration, economy, education healthcare, culture and religion. It consists of well-separable, typical districts having special demographic functions as well. The number of inhabitants in its most populous residential quaters outperforms ten times that of the districts with other functions. Eger is an ageing town. Its Northern district has the youngest age structure, but its society is not homogenous as there are poeple of the higher and the lower social strata as well. Although the level of education in the town is higher than that of the national average, there are huge spatial differences in it. (Rác Hóstya, Felnémet, Felsőváros v.s. Almagyardomb, Belváros)

Vidékfejlesztés versus globalitás, avagy vidékfejlesztés a globalitás jegyében

A cikk felvázolja a modern vidékfejlesztési politikák születésének szükségességét. Kitér az ún. közösségalapú fejlesztések főbb sajátosságaira és bemutat ezek közül néhány - nemcsak európai - metódust

"Áldd meg határunkat..." : szakrális emlékek a röszkei tanyavilágban

Röszke is a village between the Serbian border and Szeged. The village and the farmsteads around it used to belong to Szeged until the 1950 administrative reorganisation. There are 11 sacred monuments in the area of the village. Three crucifixes are erected with the donations of the believers beside farmland schools built by the town of Szeged from the second half of the 19* century on. Other crucifixes were also raised with the donations offarmers to protectthe land and the crops, or individually, to express gratitude or as a memorial of some fatal event e. g. an epidemic. The two storm bells and the crucifixes beside them played a special role in the protection of the lands. They were erected beside the vineyards around the town. The field guard fought against the devastating hail from the beginning of the storm until the end by the chimes of the bells and prayers, thus protecting the crops. The statue of Saint Peter with Chains was raised as a memorial of surviving the plague of 1783 in Szeged. By the beginning of the 1900s, the veneration of the saint had faded away and the statue was placed into the yard of a farmstead where it still stands. The study discusses the history of the raising and the fate of the monuments and the customs related to them

Backflipping With Miniature Quadcopters by Gaussian-Process-Based Control and Planning

This article proposes two control methods for performing a backflip maneuver with miniature quadcopters. First, an existing feedforward control approach is improved by finding the optimal sequence of motion primitives via Bayesian optimization, using a surrogate Gaussian process (GP) model. To evaluate the cost function, the flip maneuver is performed repeatedly in a simulation environment. The second method is based on closed-loop control and it consists of two main steps: first, a novel robust, adaptive controller is designed to provide reliable reference tracking even in case of model uncertainties. The controller is constructed by augmenting the nominal model of the drone with a GP that is trained using measurement data. Second, an efficient trajectory planning algorithm is proposed, which designs feasible trajectories for the flip maneuver using only quadratic programming. The two approaches are analyzed in simulations and in real experiments using Bitcraze Crazyflie 2.1 quadcopters

Payload Grasping and Transportation by a Quadrotor with a Hook-Based Manipulator

The paper proposes an efficient trajectory planning and control approach for payload grasping and transportation using an aerial manipulator. The proposed manipulator structure consists of a hook attached to a quadrotor using a 1 DoF revolute joint. To perform payload grasping, transportation, and release, first, time-optimal reference trajectories are designed through specific waypoints to ensure the fast and reliable execution of the tasks. Then, a two-stage motion control approach is developed based on a robust geometric controller for precise and reliable reference tracking and a linear--quadratic payload regulator for rapid setpoint stabilization of the payload swing. The proposed control architecture and design are evaluated in a high-fidelity physical simulator with external disturbances and also in real flight experiments.Comment: Submitted to IEEE Robotics and Automation Letters (2023

Backflipping with Miniature Quadcopters by Gaussian Process Based Control and Planning

The paper proposes two control methods for performing a backflip maneuver with miniature quadcopters. First, an existing feedforward control approach is improved by finding the optimal sequence of motion primitives via Bayesian optimization, using a surrogate Gaussian Process model. To evaluate the cost function, the flip maneuver is performed repeatedly in a simulation environment. The second method is based on closed-loop control and it consists of two main steps: first a novel robust, adaptive controller is designed to provide reliable reference tracking even in case of model uncertainties. The controller is constructed by augmenting the nominal model of the drone with a Gaussian Process that is trained by using measurement data. Second, an efficient trajectory planning algorithm is proposed, which designs feasible trajectories for the flip maneuver by using only quadratic programming. The two approaches are analyzed in simulations and in real experiments using Bitcraze Crazyflie 2.1 quadcopters.Comment: Submitted to IEEE Transactions on Control Systems Technology (2022

Backflipping With Miniature Quadcopters by Gaussian-Process-Based Control and Planning

This article proposes two control methods for performing a backflip maneuver with miniature quadcopters. First, an existing feedforward control approach is improved by finding the optimal sequence of motion primitives via Bayesian optimization, using a surrogate Gaussian process (GP) model. To evaluate the cost function, the flip maneuver is performed repeatedly in a simulation environment. The second method is based on closed-loop control and it consists of two main steps: first, a novel robust, adaptive controller is designed to provide reliable reference tracking even in case of model uncertainties. The controller is constructed by augmenting the nominal model of the drone with a GP that is trained using measurement data. Second, an efficient trajectory planning algorithm is proposed, which designs feasible trajectories for the flip maneuver using only quadratic programming. The two approaches are analyzed in simulations and in real experiments using Bitcraze Crazyflie 2.1 quadcopters