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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.
671

Dynamic Mission Planning for Unmanned Aerial Vehicles

Rennu, Samantha R. January 2020 (has links)
No description available.
672

Energetický model lineární osy s kuličkovým šroubem a servopohonem / Energetic model of linear axis with ball screw and servodrive

Sládek, Vojtěch January 2019 (has links)
The aim of the thesis was to study the Energy Models of Linear Axes with Ball Screws and Servo Drives, to analyze the individual parts of the axis with respect to losses, the methodology of calculating the losses on the electrical part and the mechanical part of the drive and creating a complex algorithm that calculates the energy consumed for the specified motion. The thesis is divided into a theoretical and practical part, where the theoretical part is divided into the treatise on the electrical part of the axis and its losses and the part that deals with the mechanical part and its losses. The calculation is divided into the basic verification algorithm and the calculation on the given example. Each calculation is calculated for both linear acceleration and S-curve acceleration. For both types of acceleration, the result of energy and its course over time is also the waveforms of position, velocity, acceleration, angular acceleration, moments, powers, power, speed and currents over time.
673

Riktvärdet på tomtmark : En jämförelse mellan lantbruk och småhus som visar värdeskillnader över tid

Hellner, Sandra January 2021 (has links)
Riktvärdet på tomtmark har visat sig skilja mellan småhus på lantbruk och småhus på landsbygd. Detta uppmärksammades första gången av Lantmäteriet vid en jämförelse av taxeringen för lantbruk 2017 och småhus 2018. De har efter detta lyft problemet i arbetsgruppen som arbetar med förberedelsearbetet inför taxering. Syftet med studien är att undersöka om och i så fall hur skillnaderna i riktvärdet på tomtmark ser ut för småhus- respektive lantbruksenheter mellan taxeringarna 2017–2018 och 2020–2021. Studien går ut på att undersöka om det finns ett tydligt mönster eller om skillnaderna varierar mellan dessa olika taxeringsår. Studien avgränsades till Stockholms län och fokuserar på de värdeområden som 2017–2018 visade att tomtmarken hade fått ett högre riktvärde på lantbruksenheter än på småhusenheter, där skillnaden var minst 20 %. Studien omfattar även de värdeområden som 2020–2021 visade skillnaden på minst 20 % men som 2017–2018 hade en skillnad som var mindre än 20 %.Resultatet visade en relativt stor variation där några värdeområden fortfarande hade en skillnad på minst 20 %, några värdeområden hade denna gång inte någon skillnad alls och inågra andra värdeområden hade riktvärdena istället blivit högre på småhusenheter än på lantbruksenheter. Studien tar även upp hur förberedelsearbetet går till inför fastighetstaxering vad gäller småhus respektive lantbruk. Denna information är svår att läsa sig till på internet och i litteratur vilket gjort att den har tagits del av genom tre intervjuer med anställda på Skatteverket, Lantmäteriet och värderingsföretaget Svefa. / The guide value of plots of land have been shown to vary between small houses on farms and small houses in rural areas. This was first noticed by Lantmäteriet (the Swedish mapping, cadastral and land registration authority) when comparing the assessment of value for agriculture land in 2017 and single-family houses in 2018. The problem has been highlighted in the working group focusing on the preparation for assessment values. The purpose of this thesis is to investigate whether, and if so, what the differences in the guide value of plots of land look like for single-family and agricultural units between the assessments 2017–2018 and 2020–2021. The study is focused on whether there is a clear pattern or whether the differences vary between these different assessment years. The geographical area was chosen in the Stockholm County and focuses on the value areas that in 2017–2018 showed that the plot land had received a higher guide value of agricultural units than on single-family houses, where the difference was at least 20 %. The study also covers the value areas that in 2020-2021 showed differences of at least 20 % but which in 2017-2018 had a difference of less than 20 %.The result showed a fairly large variation where some value areas still had a difference of at least 20 %, some value areas had this time no difference at all, and some value areas had instead become higher for single-family units than for agricultural units. The study also addresses how the preparation work is done for property assessment in terms of single-family house and agricultural. This information is difficult to find on the internet and in literature, which has meant that it has been accessed through three interviews with employees at Skatteverket (the Swedish Tax Agency), Lantmäteriet and the valuation company Svefa.
674

A Conductor's Guide to the Choral Music of Joshua Rist

Brown, Joshua R. (Joshua Ray) 05 1900 (has links)
Composed exclusively in the last decade, Joshua Rist's works have received significant performances by numerous high-profile ensembles including prominent high school, collegiate, and community choirs. Although conductors continue to program his works with increased frequency, minimal scholarly work is published about this music and its composer. The quality of Rist's body of work coupled with a scarcity of scholarly research provides opportunity for further study. Closer examination of Rist's works could provide a framework for conductors who perform his music. This study provides background and bibliographic information on the composer. It contains a review of choral works by Rist highlighting critical elements within each work that provide a framework for future performances of his works. This dissertation identifies stylistic characteristics that define Rist's compositional style. Additionally, it highlights the evolution of Rist's artistic growth and development.
675

Návrh speciálního manipulátoru / Project of special manipulator

Martinů, Jan January 2009 (has links)
This thesis describes the design of a special manipulator, driven by a special mechanism with a pushed chain. The chain is conducted from the bottom branch of a horizontal guide slot via a chain wheel to the upper branch of a guide slot. To the end of the chain there is connected a frame manipulator via a tap connection. In this work there are described and suggested the most important component units of a manipulator, including a drive.
676

Variabilní článkový dopravník / Variable apron conveyor

Trávníček, Jiří January 2009 (has links)
This thesis deals with construction proposal of variable sectional conveyer for lump loads transportation. With regard to request for floor prices, purchased parts and components were used as much as possible. Chain - belt and other atypical conveyer parts had to be designed. Design was executed on the basis of calculations followed with solidity and deformation verification.
677

Výtah pro přepravu osob 675 kg / Passenger lift 675 kg

Špunar, Martin January 2011 (has links)
This master’s thesis deals with the design of the carrying frame of a lift cage with lift capacity of 675 kg. It’s main content is follow up strength analysis by Finite elements method (FEM). Thesis also contains the calculation of counterweight mass. Further is performed the calculation of the guide anchoring instituted for this steel structure and the strength analysis of the used guides according to norm ČSN EN 81-1. The thesis also includes the drawing of the carrying frame of the lift cage. Master’s thesis was carried out in co-operation with the LIFTMONT CZ company, Ltd.
678

Konstrukce multifunkčního obráběcího centra / Design of multi-functional machining centre

Sedlák, Pavel January 2011 (has links)
This master thesis deals with the construction of multi-functional machining centre. The theoretical part describes the history of lathes, trends in production of lathes and individual machine parts. The practical part is the structural design of the spindle with positioning in the C axis, the second spindle (including drive in Z axis) and the turret (including drive in the X and Z axis). A 3-D model of the entire lathe assembly modeled in Autodesk Inventor 2010 is also included.
679

Ocelová konstrukce sportovní haly / Steel construction of Sports Hall

Badin, Vít January 2017 (has links)
The subject of this thesis is the proposal of main supporting steel structure of multipurpose sports hall with the floor plan dimensions of 36x45 meters. Location of the building is in Znojmo. Total height of the structure is 16 meters. The support structure material is 235 JR. Construction is drafted in three possible options. For the selected option is elaborated project documentation and calculated guide details.
680

Posuzování projektů výzkumu a vývoje z pohledu zákona o daních z příjmů / Assessment of Research and Development Projects in Terms of Income Tax Act

Kolářová, Magdalena January 2017 (has links)
This diploma thesis deals with evaluating of research and development projects from the viewpoint of income taxes in business corporation. The thesis defines legislation of the problematics. On the basis of acquired knowledge a methodological guide is created. It can be used in business corporation while evaluating research and development projects in accordance with income taxes. In this diploma thesis the chosen research and development projects in existing business corporation are solved by the created methodological guide. Illustrative examples of situations which can appear during realization of research and development projects and its financial impacts on business corporation are given at the end of this thesis.

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