6 ABSTRACT Thermal and moisture regime of patterned ground is closely associated with the presence of the regelation phenomenon. Generally, the regelation includes all processes leading to the water freeze-thaw alternations in soil or bedrock. As a result of cyclic freezing and thawing of soil water under specific conditions, processes, such a moisture migration, ice segregation or frost heaving, operate. Termal and moisture regime is the main factor of these processes and consequentely, of the patterned ground formation. The submited diploma thesis is concerned with thermal and moisture regime of patterned ground in the High Tatras. The main aims of the thesis was to characterize thermal and moisture regime of patterned ground, to evaluate and confront the patterned ground regelation activity depending on the diverse soil depths and different types of the patterned ground and to evaluate the soil temperature relationship to the air temperatures, soil moisture content and the water level regime of the nearest lakes. The partial purpose of the thesis was to assess the applicability of different methods of the regelation cycle determination based on the soil temperature measurements. During the study period 2007 - 2012 the regelation activity of sorted paterned ground (Hincove oká, Lúčne sedlo and Skalnaté...

This diploma thesis should have tested growth abilities during different temperature and oxygen regime in hybrid between brook trout (Salvelinus fontinalis) and arctic charr (Salvelinus alpinus) culture. There were survival, growth, feed conversion, weight heterogeneity of fish and somatic indexes as followed indicators. The hypothesis was discovery of differences in growth and mentioned indicators during rearing in water with different temperature and oxygen regime. This thesis consists of two done experiments. There were tested five temperature regimes (7, 10, 13, 16 and 19 °C) in the first experiment. Each of tested groups was repeated four times. The experiment took place 84 days and biometric data were measured always after 21 days period. Results showed that the highest weight growth was achieved in fish reared at 13 °C as specific growth rate achieved 4,12 ? 0,21 % × day-1. Higher temperature regimes (16, 19 °C) are not suitable for rearing of Salvelinus hybrid. Survival of tested group reared at 19 °C were only 41,4 ? 27,3 % after the end of the first experiment. At lower temperatures efficient feed conversion were not managed and specific growth rate were lower than at mentioned temperature 13 °C. There were four tested groups permanent hyperoxia (120 130 %), hyperoxia only during a light part of a day, oscillating hyperoxia/normoxia and permanent normoxia (85 95 %) in the second experiment. Each of tested groups was repeated three times. The experiment took place 63 days and biometric data were measured always after 21 days. There were no difference in survival among tested groups and after the end of the second experiment survival was 86,0 ? 1,4 %. The highest specific growth rate were achieved at the normoxia group 1,48 ? 0,05 % × day-1 and at the group where fish were reared under hyperoxia only during a light part of a day - 1,38 ? 0,10 % × day-1. The most efficient feed conversion was mentioned at the fish reared in permanent normoxia and permanent hyperoxia.

Kiekvienas vandens telkinys daugiau ar mažiau veikia savo aplinką. Viena iš tokio poveikio formų yra poveikis mikroklimatui, atsirandantis dėl garavimo metu iš vandens. Visoms bendrijoms yra būdingi reiškiniai, suderinti su natūraliai pasikartojančiais procesais. Kiekvienai rūšiai būdingas nuoseklus augimo ir žydėjimo periodas, kurį daugiausia derina ir reguliuoja pagrindiniai aplinkos klimatiniai gradientai. Darbo objektas – Tyrimui pasirinktas objektas – Karkliškės tvenkinys esantis Akademijos miestelyje. Darbo tikslas – Nustatyti vandens telkinio pakrantės temperatūros variacija dirvožemio paviršiuje įvairaus nuolydžio ir orientacijos šlaituose. Darbo metodai. Buvo pasirinkti ir išmatuoti du tvenkinio šlaitai šiaurinis ir pietinis. Šiaurinis šlaitas buvo pasirinktas 25, o pietinis 37 laipsnių nuolydžio. Kiekviename variante buvo atliekami matavimai šešiose vietose. Matavimai buvo vykdomi nuo balandžio mėnesio 12 dienos iki spalio mėnesio 28 dienos, kas 10 dienų. Visi matavimai atlikti 10 valandą ryte. Iš viso atlikta 21 matavimas. Darbo rezultatai – Kontrastas tarp pietinio ir šiaurinio šlaito augalijos rodo, kad Šiauriniame šlaite, kuris yra šaltesnis ir drėgnesnis. Todėl nestebina ir atitinkami temperatūros bei drėgmės skirtumai. Bet jeigu padarę pjūvį nuo vieno šlaito iki kito, tirtume ir toliau pastebėtume labiau nuoseklų, o ne pertraukiamą mikroklimato ir augmenijos gradientą. Daugelis žolinių augalų formuoja žiedynus, žydi arba dera vėlai pavasarį. Tačiau... [toliau žr. visą tekstą] / Each water reservoir more or less influences its surroundings. One of the forms of influence is an effect on microclimate that occurs owing to evaporation. All communities have typical phenomena consentaneous with natural repetitive processes. Every species has characteristic successive periods of vegetation and bloom that are harmonized and adjusted by basic climatic gradients. Subject of research-The Karkliškės pond in Akademija small town has been chosen for the experiment. Aim of research-The purpose of the work is to establish the influence of temperature variation on flora in differently inclined and orientated slopes of a water reservoir. Eethodology-Two pond slopes – northern and southern – have been chosen and measured. The northern slope has incline of 250 and the southern one of 370. The measurements have been fulfilled in six places of each variant. The measurements were carried out from the 12th of April to the 28th of October every 10 days. All measurements were fulfilled at 10 am, altogether 21 measurements. Results of research-The contrast of flora between the southern and the northern slope shows that it is situated out of continuity due to position and orientation. Appropriate differences in temperature and humidity are observed too. However, if we made a section of both slopes we would observe more successive gradient of microclimate and flora. On northern slope, which is cold and wet, most grass form truss, blossom and crop in late spring. On dry and... [to full text]

Разработан метод определения предела огнестойкости по потере несущей способности с использованием нелинейной деформационной модели, произведена оценка предела огнестойкости по теплоизолирующей способности и потере целостности на примере расчета железобетонной плиты. Представлены методы решения теплотехнической задачи огнестойкости. / A method has been developed for determining the fire resistance limit for loss of bearing capacity using a nonlinear deformation model, and an assessment of the fire resistance limit for thermal insulation ability and loss of integrity has been made using the example of calculating a reinforced concrete slab. The methods of solving the heat engineering problem of fire resistance are presented.