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Předběžná a výsledná cena stavebního díla - porovnání a zdůvodnění rozdílů / Preliminary and final cost of the construction - comparing and reasoning of differencesNowak, Jiří January 2018 (has links)
The aim of this diploma thesis is to compare price differences between preliminary and final price of a given construction. Thus, the basis is the given construction, whose price was increased in pursuance of construction operations from preliminary to final price, supplemented with price variations, which is, in this case, the basic concept. This thesis is divided into theoretical and practical parts. The theoretical part defines terms and concepts associated with this issue and the practical part deals with an actual case, in which the situation is laid out and the individual prices are described, along with the comparison and explanation.
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Záznamového zařízení pro oblast civilního letectví / Data storage system for area of civil aviationKotulič, Dominik January 2018 (has links)
In the thesis the design of the Data Storage System (DSS) is proposed with the respect to the V-Model methodology. The design is based on users requirements, from which the system requirements are created and the technical specification of the DSS is developed. In the technical specifications the functionality of the DMM and HMI DSS subsystems are described and sub-system requirements are assigned to them, then they are subdivided and assigned to individual DMM (Data memory module) and HMI hardware items. Moreover, requirements are analyzed on hardware items, specific electronic components, are selected and implemented into the block design of the DMM hardware. Based on the block design of hardware, the hardware of the DMM subsystem is designed, selectively simulated and implemented along with the printed circuit board. On the implemented hardware of the DMM subsystems measurements are performed in order to verify the basic functionality of the hardware and the calculated, assimilated and measured values are compared as well. At the end of the thesis there is a short description of the implementation of the software design and its use for basic initialization of the selected processor, together with the verification of its basic function - measuring the frequency of the internal clock sources and the clock domains. The work is completed by sending a message of defined parameters to the selected communication line and sapling it by an oscilloscope, so that the basic function of the DMM subsystem is verified.
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Autobusové nádraží ve variantě ŽUB A-Řeka / Coach station by the Brno River railway stationPelc, Norbert January 2019 (has links)
This diploma thesis deals with a design of the coach station in option A-River of the Brno railway hub. The aim of the thesis is alternative design of the coach station configuration located under the bridge of the new passenger’s railway station. Furthermore, the proof of coach station Zvonařka preservation has been given in accordance with the estate road system change in relation with the new railway infrastructure development. The preliminary design is processed in four options. The complement of this thesis is a traffic survey.
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Analýza a optimalizace nákladů dřevostavby / Analysis and optimization of timber construction costsZvonař, Tomáš Unknown Date (has links)
This diploma thesis deals with the cost analysis and cost optimization of an exact project of a wooden house in a construction company. The thesis is divided into two parts. The first part is the research part, where basic concepts are defined. The second part of this thesis is the practical part which includes a brief description of the concerned wooden house with its preliminary and final budget. Individual parts of these budgets are subject to the cost analysis. As a result of the cost analysis the price differences between the budgets are shown. In the next step the verification bill of quantities with an item based budget in the ÚRS price system is put together. It is used for comparison and determination of price differences. According to the obtained data, optimization of the preliminary budget is proposed. At the end of this thesis an overall evaluation of price differences and proposed measures are described.
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Postavení Soudního dvora EU v oblasti policejní a justiční spolupráce v trestních věcech / Standing of the Court of Justice of the EU in the Area of the Police and Judicial Cooperation in Criminal MattersShepard, Lucia January 2017 (has links)
5 Abstract This dissertation examines the standing of the Court of Justice of the European Union in the area of police and judicial cooperation in criminal matters, which was formally included under the umbrella of the European Union as a result of the Maastricht Treaty in the early nineties. Yet this area was excluded from the Community framework, which had a significant impact on the jurisdiction and competencies of the Court of Justice. Despite limitations arising from the construct of the third pillar, the Court of Justice took an opportunity through case law to overcome some of these limitations. The most recent milestone in the development of this area is the entry into force of the Lisbon Treaty which removed the so-called pillar structure and further limitations disappeared with the end of the transitional period. Further, existing case law of the Court of Justice in this area has been closely linked to the framework decision on the European arrest warrant, which is based upon the principle of mutual recognition and mutual trust between the EU Member States, and thus became an important part of the case law of the Court of Justice. Given the scope of this framework decision, the Court of Justice has also been frequently dealing with the issue of fundamental rights, the protection of which plays an...
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Analytické hodnocení písemných projevů žáků gymnázií / Analytical assessment of grammar school pupil's ESL writingsŠiprová, Hedvika January 2020 (has links)
The theoretical part of this diploma thesis provides a broader academic context for the research presented in the theoretical part and is concerned with the specifics of the writing assessment. It proposes reasons why writing should be assessed, describes methods of assessment and scoring, and also examines writing tests. At the end of the theoretical part, the presumed controlling idea, called the washback effect, which significantly influenced the course of the research in the practical part of the thesis, is presented. The practical part is divided into two parts. The first part focuses on the types of scoring ESL grammar school teachers employ for assessing grammar school pupils. The aim was to discover how many of them use analytical and/or multiple-trait scoring. It was revealed that analytical scoring the most used means of assessment. Holistic scoring was next, followed by multiple-trait and lastly primary-trait scoring. Other scoring procedures are rarely employed. The second part is a case study of assessment criteria of selected teachers which compares these criteria against those used in Cambridge English: Preliminary examination and the Czech state secondary school-leaving exam. The author of the thesis tried to identify criteria or descriptors which appear across these systems and could,...
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Školní zralost a připravenost u žáků v přípravné třídě / School maturity and school readiness of pupils in preparatory classRejmanová, Adéla January 2020 (has links)
The diploma thesis deals with the issue of school maturity and readiness of pupils in the preparatory class. In the theoretical part the basic terminology from the field of pre-school education and problems of entering the elementary school is defined. There are also the principles of the preliminary test of school maturity described in detail. They are subsequently applied in practical research. The research part focuses on the comparison of the level of school maturity and readiness of pupils in the preparatory class and children in kindergarten. The survey was mainly conducted using qualitative methods, specifically through interviews, questionnaires and anamnesis. However, one quantitative method was also included - the standardized preliminary test of school maturity. This test focuses on fine motor skills and visuo-motor coordination ability. The research was carried out in preparatory classes and kindergartens in Mladá Boleslav and its surroundings. The goal of this diploma thesis was to find out whether education in a certain kind of preschool facility can affect children's readiness for school. Research results showed, that preparatory classes have better conditions for the development of a preschool pupil with postponement of school attendance than kindergartens. KEY WORDS Preschool...
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Utilization of a tailormade condition monitoring device for third party motorsGrahn, Pontus January 2018 (has links)
Our society moves towards digitalization and the industry is not an exception. Siemenshas developed a wireless condition monitoring device called Simotics Connect in order tohelp them to move forward in the world of digitalization. The Simotics Connect has threeinbuilt sensors. One for temperature, one for vibrations and one for magnetic flux density,a product that is new in the market. This master thesis has investigated its usability forthird party motors, which has not been done.Four areas were investigated, the status in the current market, creating a motorgeometry estimation based on nameplate data, presenting a temperature model to calculatea motor’s cross section temperature and, finally, proposed a stator current model using themagnetic field measurement.Market research has shown that a space for the Simotics Connect to thrive in mostdefinitely exists.The motor geometry estimation, that is based on preliminary electromagnetic sizing,creates a digital twin for the motor that has sufficient accuracy as a tool when calculatinge.g. temperature calculations but lacks accuracy for more advanced and sensitivecalculations e.g for magnetic flux density measurement usability.The temperature model that is presented shows great accuracy when calculating thecross section temperature in the stator but the accuracy decreases for the cross sectiontemperature in the rotor.A stator current model is proposed using a proportional relationship between themagnetic flux density and stator current. The results indicates a linear relationship, thoughusing the digital twin to calculate the proportional constant were concluded to not beaccurate enough. / Sammhället rör sig idag mot digitalisering och industrin är ej ett undantag. Siemens harutvecklat en trådlös underhållsmätare kallad Simotics Connect för att hjälpa dem strävamot en värld inom digitalisering. Simotics Connect hat tre inbyggda sensorer. En för temperatur,en för vibrationer och en för magnetisk flödestäthet, vilket är nytt på marknaden.Detta masterprojekt har undersökt användningen av Simotics Connect för tredjepartsmotorer,vilket ej har gjorts tidigare.Fyra områden undersöktes, statusen på den nuvarande marknaden, en motorgeometriuppskattningmodellbaserad på namnskylsdata, en temperaturmodell för att beräknamotorns tvärsnittstemperatur och, slutligen, en statorströmmodell som använder sig avmagnetiska flödestäthetsmätningen.Marknadsundersökningen har visat att det finns ett utrymme för Simotics Connectatt blomstra inom på den nuvarande marknaden.Motorns geometriska uppskattning, som är baserad i preliminär elektromagnetiskgeometribestämning, skapar en digital tvilling av motorn som är tillräckligt noggrann föratt aggera som ett verktyg vid t.ex. temperatursberäkningar men saknar noggrannhet förmer avancerade och känsliga beräkningar, t ex för användbarhet inom magnetisk flödestäthetsberäkningar.Temperaturmodellen som presenteras visar stor noggrannhet vid beräkning av statornstvärsnittstemperatur, men noggrannheten minskar för rotorns tvärsnittstemperatur.En statorströmmodell föreslås med ett proportionellt förhållande mellan magnetflödesdensitetenoch statorströmmen. Resultaten indikerar ett linjärt förhållande, men användandetav den digitala tvillingen för att beräkna proportionell konstant konstateras attinte vara tillräckligt noggrann metod.
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Design of a modular small-scale PMMA/Air hybrid rocket research enginevon Platen, Gustaf January 2023 (has links)
Rocket propulsion using the hybrid-propellant scheme is a technology that offers much promise in applications where high-performance liquid rocket engines are deemed too complex and solid rocket motors are considered to lack performance or safety. However, despite extensive research, there is still a lack of knowledge in the theoretical aspects of hybrid rocketry, especially in the area of fuel-oxidizer mixing and fuel regression rate. This lack of a good theoretical model makes the implementation of good, practical solutions and mature, well-functioning designs more diffcult. This disadvantages the hybrid rocket engine when compared to liquid rocket engines or solid rocket motors.In this study, a hybrid rocket engine burning polymethyl methacrylate (PMMA) with compressed air has been designed to the point of a preliminary design defnition. PMMA is a transparent material, and this has been utilized to create a transparent-chamber rocket engine where engine processes can be studied with various optical methods withoutinterrupting or disturbing the operation of the engine. The function of hybrid rocket engines, the technological solutions involved in designing working hybrid rocket engines and the constituent parts of hybrid rocket engines have been studied. The nature of the trade-offs between performance and simplicity that occur when designing a rocket engine are also studied, with a focus on maximizing simplicity, safety and minimizing expenses, while still designing an engine that fulfills basic requirements. The results include a design defnition with a preliminary user’s guide, a feasibility study, and a summary of the results of the hybrid rocket performance model that was used to determine appropriate design parameters.
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Architecting Safe Automated Driving with Legacy PlatformsMohan, Naveen January 2018 (has links)
Modern vehicles have electrical architectures whose complexity grows year after year due to feature growth corresponding to customer expectations. The latest of the expectations, automation of the dynamic driving task however, is poised to bring about some of the largest changes seen so far. In one fell swoop, not only does required functionality for automated driving drastically increase the system complexity, it also removes the fall-back of the human driver who is usually relied upon to handle unanticipated failures after the fact. The need to architect thus requires a greater rigour than ever before, to maintain the level of safety that has been associated with the automotive industry. The work that is part of this thesis has been conducted, in close collaboration with our industrial partner Scania CV AB, within the Vinnova FFI funded project ARCHER. This thesis aims to provide a methodology for architecting during the concept phase of development, using industrial practices and principles including those from safety standards such as ISO 26262. The main contributions of the thesis are in two areas. The first area i.e. Part A contributes, (i) an analysis of the challenges of architecting automated driving, and serves as a motivation for the approach taken in the rest of this thesis, i.e. Part B where the contributions include, (ii) a definition of a viewpoint for functional safety according to the definitions of ISO 42010, (iii) a method to systematically extract information from legacy components and (iv) a process to use legacy information and architect in the presence of uncertainty to provide a work product, the Preliminary Architectural Assumptions (PAA), as required by ISO 26262. The contributions of Part B together comprise a methodology to architect the PAA. A significant challenge in working with the industry is finding the right fit between idealized principles and practical utility. The methodology in Part B has been judged fit for purpose by different parts of the organization at Scania and multiple case studies have been conducted to assess its usefulness in collaboration with senior architects. The methodology was found to be conducive in both, generating the PAA of a quality that was deemed suitable to the organization and, to find inadequacies in the architecture that had not been found earlier using the previous non-systematic methods. The benefits have led to a commissioning of a prototype tool to support the methodology that has begun to be used in projects related to automation at Scania. The methodology will be refined as the projects progress towards completion using the experiences gained. A further impact of the work is seen in two patent filings that have originated from work on the case studies in Part B. Emanating from needs discovered during the application of the methods, these filed patents (with no prior publications) outline the future directions of research into reference architectures augmented with safety policies, that are safe in the presence of detectable faults and failures. To aid verification of these ideas, work has begun on identifying critical scenarios and their elements in automated driving, and a flexible simulation platform is being designed and developed at KTH to test the chosen critical scenarios. / Efterfrågan på nya funktioner leder till en ständigt ökande komplexitet i moderna fordon, speciellt i de inbyggda datorsystemen. Införande av autonoma fordon utgör inte bara det mest aktuella exemplet på detta, utan medför också en av de största förändringar som fordonsbranschen sett. Föraren, som ”back-up” för att hantera oväntade situationer och fel, finns inte längre där vid höggradig automation, och motsvarande funktioner måste realiseras i de inbyggda system vilket ger en drastisk komplexitetsökning. Detta ställer systemarkitekter för stora utmaningar för att se till att nuvarande nivå av funktionssäkerhet bibehålls. Detta forskningsarbete har utförts i nära samarbete med Scania CV AB i det Vinnova (FFI)-finansierade projektet ARCHER. Denna licentiatavhandling har som mål att ta fram en metodik för konceptutveckling av arkitekturer, förankrat i industriell praxis och principer, omfattande bl.a. de som beskrivs i funktionssäkerhetsstandards som ISO 26262. Avhandlingen presenterar resultat inom två områden. Det första området, del A, redovisar, (i) en analys av utmaningar inom arkitekturutveckling för autonoma fordon, vilket också ger en motivering för resterande del av avhandlingen. Det andra området, del B, redovisar, (ii) en definition av en ”perspektivmodell” (en s.k. ”viewpoint” enligt ISO 42010) för funktionssäkerhet, (iii) en metod för att systematiskt utvinna information från existerande komponenter, och (iv) en process som tar fram en arbetsprodukt för ISO 26262 – Preliminära Arkitektur-Antaganden (PAA). Denna process använder sig av information från existerande komponenter – resultat (iii) och förenklar hantering av avsaknad/osäker information under arkitekturarbetet. Resultaten från del B utgör tillsammans en metodik för att ta fram en PAA. En utmaning i forskning är att finna en balans mellan idealisering och praktisk tillämpbarhet. Metodiken i del B har utvärderats i flertalet industriella fallstudier på Scania i samverkan med seniora arkitekter från industrin, och har av dessa bedömts som relevant och praktiskt tillämpningsbar. Erfarenheterna visar att metodiken stödjer framtagandet av PAA’s av lämplig kvalitet och ger ett systematiskt sätt att hantera osäkerhet under arkitekturutvecklingen. Specifikt så gjorde metoden det möjligt att identifiera komponent-felmoder där arkitekturen inte var tillräcklig för åstadkomma önskad riskreducering, begränsningar som inte hade upptäckts med tidigare metoder. Ett prototypverktyg för att stödja metodiken har utvecklats och börjat användas på Scania i projekt relaterade till autonoma fordon. Metodiken kommer sannolikt att kunna förfinas ytterligare när dessa projekt går mot sitt slut och mer erfarenheter finns tillgängliga. Arbetet i del B har vidare lett till två patentansökningar avseende koncept som framkommit genom fallstudierna. Dessa koncept relaterar till referensarkitekturer som utökats med policies för personsäkerhet (Eng. ”safety”) för att hantera detekterbara felfall, och pekar ut en riktning för framtida forskning. För att stödja verifiering av dessa koncept har arbete inletts för att identifiera kritiska scenarios för autonom körning. En flexibel simuleringsplattform håller också på att designas för att kunna testa kritiska scenarios. / Vinnova-FFI funded Project ARCHER
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