Baigiamajame magistro darbe analizuojami Lietuvos geodezinio vertikaliojo pirmosios klasės tinklo linijos Jonava – Zarasai niveliavimo rezultatai. Darbe apžvelgtos vertikaliojo tinklo sudarymo nuostatos, šalies dalyvavimas tarptautiniuose projektuose, sudarytas vertikalusis pirmosios klasės tinklas, vertikaliojo tinklo sudarymo metodika bei prietaisai ir priemonės, naudojami šio tinklo matavimuose. Darbe pateikti eksperimentiniai nivelyrų sistemos kalibravimo rezultatai ir pavienių matuoklių kalibravimo rezultatai. Pateikiama niveliavimo duomenų apdorojimo metodika. Baigiamajame darbe pagal nivelyrų sistemos bei pavienių matuoklių kalibravimo rezultatus nagrinėjamos kalibravimo, refrakcijos ir temperatūros pataisos, analizuojamas nesąryšių ir temperatūros kitimas vertikaliojo tinklo linijoje Jonava – Zarasai, skaičiuojamas niveliavimo rezultatų tikslumas. Darbo pabaigoje pateikiamos išvados. Darbą sudaro: įvadas, 4 skyriai , išvados, literatūros ir kitų šaltinių sąrašas. Darbo apimtis – 70 p. teksto be priedų, 44 iliustr., 11 lent., 34 bibliografiniai šaltiniai. Atskirai pridedami darbo priedai. / Master's thesis aim - analysis of the levelling results of the vertical network line Jonava – Zarasai. At work is described technical regulations of the vertical network, first order vertical network and also used measurement technique. At work is presented experimental results of digital levels system calibration and results of levelling stuffs calibration. By these results in this work is performed analysis of refraction, calibration and temperature corrections, and also analysis of the air temperature and heights differences mismatching. At work also was calculated leveling accuracy. In the end of the work is presented conclusions. Structure: introduction, 4 chapters, conclusions and suggestions, references. Thesis consist of: 70p. text without appendixes, 44 pictures, 11tables, 34 bibliographical entries. Appendixes included.

This study is devoted to the determination of a high resolution gravimetric geoid model for Uganda based on the optimal combination of terrestrial and satellite gravity anomalies using the method of Least Squares Modification of Stokes’ formula with additive corrections. Specifically the study investigates the current status of the existing Uganda Vertical Network relative to the requirements of a modern height datum and includes a detailed evaluation and validation of terrestrial gravity data, several digital elevation models and some recent global geopotential models. Finally a new height datum based on a gravimetric quasigeoid model and Global Navigation Satellite Systems (GNSS)/levelling is proposed. In this thesis, the Uganda Gravimetric Geoid Model 2014 (UGG2014) is computed from several datasets which, include 7839 terrestrial gravity data points from the International Gravimetric Bureau, the 3 arc second Shuttle Radar Topography Mission digital elevation model and a recent Gravity field and steady-state Ocean Circulation Explorer-only global geopotential model. To compensate for the missing gravity data in the target area, the surface gravity anomalies extracted from the World Gravity Map 2012 were used. Outliers in the terrestrial gravity data were detected using the cross-validation technique which, also estimated the accuracy of the remaining terrestrial gravity data as 9 mGal. Based on 12 GNSS/levelling data points distributed over Uganda, the root mean square fit of UGG2014 before and after the 4-parameter fit is 16 cm and 9 cm, respectively. The study has revealed that the heights of the Uganda Vertical Network are normal-orthometric heights for which the quasigeoid is the closest approximation to the zero reference surface. Consequently, the Uganda Gravimetric Quasigeoid Model 2014 (UGQ2014) was derived from the UGG2014 with the quasigeoid-geoid separation computed from the Earth Gravitational Model 2008 complete to degree/order 2160 of spherical harmonics. The root mean square fit of UGQ2014 versus GNSS/levelling is 15 cm and 8 cm before and after the 4-parameter fit, respectively, which shows that the quasigeoid model fits GNSS/levelling better than the geoid model. Thus a new height datum based on UGQ2014 and GNSS/levelling was determined as a practical solution to the determination of heights directly from GNSS. Evaluated with 4 independent GNSS/levelling points, the root mean square fit of the new height datum is 5 cm better than using the quasigeoid model alone. With an average parts-per-million of 29 in the relative test, the new height datum satisfies the precision and accuracy requirements of third order precise levelling. Overall, the results show that UGG2014 and UGQ2014 agree considerably better with GNSS/levelling than any other recent regional/global gravimetric geoid models. Therefore, both gravimetric solutions are a significant step forward in the modelling of a “1-cm geoid” over Uganda given the poor quality and quantity of the terrestrial gravity data used for computation. / <p>QC 20150831</p>

Магистерская диссертация посвящена изучению муниципальных практик сетевого взаимодействия в общеобразовательных организациях г. Екатеринбурга и разработке технологий их развития. В работе рассмотрены концептуальные и нормативно-правовые основы развития сетевого взаимодействия в системе среднего образования в Российской Федерации. В ней представлены результаты эмпирического исследования, посвященного практикам сетевого взаимодействия в среднем общем образовании г. Екатеринбурга. Автор диссертации предлагает рекомендации и проект по совершенствованию организации сетевого взаимодействия в среднем общем образовании г. Екатеринбурга. / The master's dissertation is devoted to the study of municipal practices of network interaction in education organizations in Yekaterinburg and development of technologies for their development. The dissertation considers the conceptual and regulatory framework for the development of network interaction in the secondary education system in the Russian Federation. It presents the results of an empirical study on the practices of networking in secondary education in Yekaterinburg. The author of the dissertation offers recommendations and a project to improve the organization of network interaction in secondary education in Yekaterinburg.