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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Vidurinio kambro Pajūrio svitos geoterminis potencialas / The geothermal potential of the middle cambrian pajūrio formation

Bičkūnas, Juozas 04 July 2014 (has links)
The geothermal potential of the Middle Cambrian Pajūrio formation Juozas Bičkūnas Paper for the Master’s degree Geology Master’s Program Vilnius University, Faculty of Natural Sciences, Geology and Mineralogy Department Supervisor – dr. Dainius Michelevičius Vilnius, 2012 SUMMARY The purpose of this thesis is to evaluate the reservoir properties and the geothermal potential of the Middle Cambrian Pajūrio formation in western Lithuania and to produce maps of the effective thicknesses, permeability, temperature and the maximum potential for both horizontal and vertical boreholes. Firstly, a database of 34 boreholes, which had reached the Pajūrio system and were equally spread out in the area, was created. The reservoir properties of the formation have been evaluated using different methods. The shale content was evaluated using gamma-ray logging data, the porosity was calculated according sonic log data. Reservoir thickness was determined according above mentioned interpretation of shale content and porosity. Finally, the values of the permeability of the reservoir layers was taken from the laboratory core analysis. As a result, maps of the reservoir thickness and permeability of the Pajūrio formation were produced using the GeoGraphix software. To produce the temperature map, temperatures from the top of the Cambrian system were taken from the database of Lithuania‘s geological survey. Geotermal potential was evaluated calculating maximum productivities of vertical and 300m... [toliau žr. visą tekstą] / The geothermal potential of the Middle Cambrian Pajūrio formation Juozas Bičkūnas Paper for the Master’s degree Geology Master’s Program Vilnius University, Faculty of Natural Sciences, Geology and Mineralogy Department Supervisor – dr. Dainius Michelevičius Vilnius, 2012 SUMMARY The purpose of this thesis is to evaluate the reservoir properties and the geothermal potential of the Middle Cambrian Pajūrio formation in western Lithuania and to produce maps of the effective thicknesses, permeability, temperature and the maximum potential for both horizontal and vertical boreholes. Firstly, a database of 34 boreholes, which had reached the Pajūrio system and were equally spread out in the area, was created. The reservoir properties of the formation have been evaluated using different methods. The shale content was evaluated using gamma-ray logging data, the porosity was calculated according sonic log data. Reservoir thickness was determined according above mentioned interpretation of shale content and porosity. Finally, the values of the permeability of the reservoir layers was taken from the laboratory core analysis. As a result, maps of the reservoir thickness and permeability of the Pajūrio formation were produced using the GeoGraphix software. To produce the temperature map, temperatures from the top of the Cambrian system were taken from the database of Lithuania‘s geological survey. Geotermal potential was evaluated calculating maximum productivities of vertical and 300m... [to full text]
2

Beetle (Insecta,Coleoptera) fauna and its distribution in seashore habitats of Lithuania / Vabalų (Insecta, Coleoptera) fauna ir paplitimas Lietuvos pajūrio buveinėse

Ferenca, Romas 06 October 2014 (has links)
Typical habitats of Baltic seashore habitats are characterized by infertile saline sands and predominant western winds. The current Baltic sea coast habitats are the result of human activities. This landscape is one of the youngest and the same time one of the most sensitive. The beetles of Baltic seashore habitats have been investigated only fragmentarly, and there is no research data about the Baltic Sea costal beetle complexes. The aim of this study is to investigate the beetle fauna and distribution in different habitats of Baltic seashore of Lithuania. / Baltijos pajūriui būdingi nederlingi ir druskingi smėlio dirvožemiai, dominuojantys vakarų vėjai.Dabartinės Baltijos pajūrio buveinės, tai aktyvios žmonių veiklos rezultatas, ir tuo pačių vienas jauniausių ir labiausiai pažeidžiamų Lietuvos kraštovaizdžių. Baltijos pajūrio vabzdžiai buvo tyrinėjami tik fragmentiškai, Iki šiol nebuvo atlikti Baltijos pakrančių buveinių vabalų kompleksų tyrimai. Šio darbo tikslas - ištirti Baltijos pajūrio buveinių vabalų fauną ir paplitimą buveinėse.
3

Aplinkosaugos priemonių veiksmingumas Baltijos jūros Lietuvos pajūrio teritorijoje / Efficiency of Enviromental Protection Measures of Baltic Coastal Areas in Lithuania

Balsytė, Judita 16 June 2014 (has links)
Šis magistrantūros studijų baigiamasis darbas atskleidžia ir leidžia labiau įsigilinti į Lietuvos pajūrio išsaugojimą, skiriamas priemones, susipažinti su gaunamomis paramomis aplinkosaugai, sužinoti, kur jos panaudojamos bei labiau įsigilinti į pajūrio svarbą Lietuvai. Gilintasi, kokie veiksniai daro didžiausią žalą mūsų pajūriui, bei kokią iniciatyvą aplinkosaugos atžvilgiu rodo ir kaip prisideda turistai, vietos bei kiti Lietuvos gyventojai. Tiriamojoje dalyje buvo vykdomas ekspertų apklausos tyrimas vakarų Lietuvoje (Palangos, Klaipėdos, Kretingos, taip pat rajonų savivaldybių specialistų). Ekspertų pagalba vertintos pajūrio apsaugos priemonės, veiksniai, darantys žalą Lietuvos pajūriui. Atlikta norminių dokumentų analizė, išanalizuotos gaunamos lėšos ir parama Lietuvos pajūriui išsaugoti bei padaryti darbai. Atlikta stiprybių, silpnybių, galimybių ir grėsmių (SSGG) analizė, teikiami pasiūlymai kaip pagerinti ir išsaugoti stabilią teritorijų būklę. Taip pat išanalizuoti norminiai dokumentai Baltijos šalyse (Latvijoje ir Estijoje), nagrinėta, kaip saugomas pajūris ir kokią reikšmę jis turi kaimyninėse šalyse. Informacija palyginta su Lietuvos teisine sistema. Aptarta kokia pajūrio teritorijų svarba ir kaip jis saugomas Latvijoje ir Estijoje. Darbe nagrinėjama Baltijos pajūrio pakrantės aplinkosauginė situacija (tarša, atliekų rūšiavimas, ekologinės būklės gerinimas ir išsaugojimas, analizuoti teisės aktai, paramos, projektai). Aptariama Baltijos jūros pakrantės svarba... [toliau žr. visą tekstą] / This Master's thesis reveals and allows more insight into the Lithuanian coastal conservation measures on access to the support they received for the Environment, to find out where they are used, and more aware of the importance of coastal Lithuania. Jurisprudence which factors have the greatest damage to our beaches, as well as any environmental initiative, demonstrates and contributes to tourists, locals and residents of Lithuania. The research was carried out in the expert survey in west Lithuania (Palanga, Klaipeda in municipality, as well as areas of municipal officers). It has been questioned by experts whose opinion then analyzed and conclusions drawn about the coastal protection measures, factors which caused the Lithuanian coast. Normative document analysis was performed, analysis of received funds and support for the preservation of Lithuania seaside as well as the work performed. The survey and analysis of the strengths, weaknesses, documenting the opportunities and threats (SWOT) analysis and conclusions on how to improve and change the state of preservation. Also analyze regulatory documents in the Baltic States (Latvia and Estonia) were analyzed, protected seashore and the significance of the neighborhood were researched. A comparison of the Lithuanian legal system. Comparable any seaside importance and how it is stored in Latvia and Estonia. The paper examines the Baltic seaside coastal environmental side (pollution, waste handling, treatment, preservation... [to full text]

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