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Glacial modelation of cirques and stratigraphy of moraines in the High Tatras
Mida, Peter ; Křížek, Marek (advisor) ; Kalvoda, Jan (referee)
The submitted diploma thesis is concerned with the geomorphological analysis of specific landforms in the High Tatras which are the result of its Quaternary mountain glaciation. The traces of the last three glacials (Mindel, Riss and Würm) are well documented in the studied area. The presence of the Early Pleistocene glaciations (Biber, Donau, Günz) is more difficult to prove. The aim of this thesis is 1) to define the rate of glacial shaping of glacial erosional landforms - cirques; 2) to determine the number of glacials or stadial oscillations of glaciers on the basis of relative dating of moraines during the Last Glaciation. A total number of 122 cirques were analysed. Cirques were classified as follows: simple cirque, termination cirque, stepped cirque and highest cirque. Morphometric characteristics that were implemented are consistent with other studies (e. g. Federici & Spagnollo, 2004, García-Ruiz et al., 2000). A degree of glacial overdeepening of a cirque was quantified by use of k coefficient which is derived from k-curve (sensu Haynes, 1968). Value of k coefficient depends on profile location and cirque headwall foot location. Range of values of k coefficient for the cirques in High Tatras is between 0,503 and 1,951. Based on morphometric analysis the northern mountainside cirques are...
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The spread of moisture from sources of Mondi SCP and their impact on the microclimate after the project ECO PLUS - Installation of a new paper machine PM19
Sokol, Zbyněk ; Řezáčová, Daniela
The report summarizes the results of the assessment of the impact of changes in humidity and heat emissions from sources of Mondi SCP for selected climatic characteristics associated with the expansion of production at the new paper machine PS19A. The assessment is based on a comparison of impacts to the existing system resources, including an increase in pulp production (Project 2000), and extended system of resources associated with the operation of PS19A. The results were obtained by applying a mathematical model CT-PLUME/MONDI_R. The calculations were performed for the winter part of the years 2011 to 2014 and included an assessment of the impact of point and diffuse sources on the climatic characteristics of the model area.
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Optimization of Signalling Traffic in IMS Subsystem of NGN Networks
Nagy, Ľuboš ; Orgoň, Miloš (referee) ; Bezpalec, Pavel (referee) ; Novotný, Vít (advisor)
One of causes of increased latency service over the whole IMS network can be unbalanced SIP (Session Initiation Protocol) signalling traffic through CSCF (Call Session Control Function). This thesis is devoted to the proposal of weight-based load balancing algorithm which can be used for the S-CSCF assignment performed by I-CSCF during the initial registration procedure of subscribers over the IMS architecture. The designed mechanism is implemented and evaluated in the mathematical model of IMS subsystem based on single servers with FIFO queues with the unlimited capacity in the numerical computing environment - Matlab. Two test-cases with different performance conditions of available S-CSCFs are described. The influence of measured latency affected by performance of other nodes (e.g. P-CSCF, I-CSCF, HSS, etc.) is minimized. Each of simulated test-cases is measured with various service times of SCSCFs and inter-arrival times. The obtained results of designed algorithm are compared with well-known selection algorithm – the round-robin algorithm. It is shown that new selection mechanism improved the service latency of whole IMS network. The possible weakness of the designed weight-based algorithm is sensitivity to traffic model over the modelled IMS architecture.
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