Dissertations / Theses on the topic 'STDMA'
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Oh, Inhee Electrical Engineering & Telecommunications Faculty of Engineering UNSW. "Spatial reuse in TDMA wireless networks." Publisher:University of New South Wales. Electrical Engineering & Telecommunications, 2008. http://handle.unsw.edu.au/1959.4/40910.
Full textJohansson, Anders. "Kommunikationsgränssnitt mot GP&C transponder." Thesis, Linköping University, Department of Science and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1591.
Full textExamensarbetet som beskrivs i denna rapport handlar om en ny teknik för att förbättra säkerheten för flygplan i luften och i närheten av flygplatser. Denna teknik benämns ADS-B (Automatic Dependent Surveillance Broadcast), och är tänkt att göra det möjligt för piloter att själva få information om trafik i närområdet. Nuvarande system baserar sig i huvudsak på visuella observationer från flygledare i kontrolltorn samt radarspaning omkring flygplatserna. Med det nuvarande systemet kommer det att bli både dyrt och svårt att upprätthålla en acceptabel nivå på flygsäkerheten när trafiken ökar.
Arbetet har bedrivits i AerotechTelubs regi i Linköping samt med hjälp ifrån företaget Sectra Wireless Technologies AB. Huvuddelen av arbetet inriktar sig på implementerandet av C-funktioner för att hantera kommunikationen och sammankopplandet av ett tidigare skapat system, för grafikvisning, med en transponder som hanterar ADS-B (tillverkad av Sectra). Målet med detta var att göra förberedande arbete åt AerotechTelub som de förhoppningsvis kommer att kunna använda i ett eventuellt kommande projekt. Rapporten tar upp några standarder som hör till konceptet GP&C (Global Positioning & Communication), samt beskriver de delar som ligger till grund för programmets funktion.
Examensarbetet har resulterat i ett demonstrationsprogram för att visa hur en lösning av problemet kan se ut. Det har tyvärr inte gått att säkerställa om programmet fungerar till fullo, men genom simuleringar och andra tester har huvuddelen av programmets funktioner gått att verifiera.
Eriksson, Matts, and Jonas Lundmark. "Technical Verification and Validation of ADS-B/VDL Mode 4 for A-SMGCS." Thesis, Linköping University, Department of Science and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1417.
Full textThis report is a technical verification and validation of ADS-B (Automatic Dependent Surveillance – Broadcast) over VDL Mode 4 (Very High Frequency Data Link Mode 4) for the use in the surveillance element of an A-SMGCS (Advanced Surface Movement Guidance and Control System).
The main objective of this report is to examine if ADS-B/VDL Mode 4 fulfils the technical requirements for an implementation at Arlanda airport, Stockholm Sweden. The report also includes a FMECA (Failure Mode, Effects and Criticality Analysis), a theoretical background and methods for monitoring.
The process of making this report can be divided into three phases:
1. Preliminary Study. In this phase the requirements were examined and structured.
2. Verification. In this phase the system performance has been verified both theoretically and by several tests at Arlanda Airport. Simulation results have also been used.
3. Validation and documentation. The tests and verifications that were performed in phase 2 were validated in the third phase of the project. The final project document was also written in this phase.
The main conclusion from this analysis is that ADS-B/VDL Mode 4 is well suited for surveillance. ADS-B/VDL Mode 4 has the possibility to fulfil all considered requirements, apart from detecting all obstacles. But if all the requirements are going to be fulfilled depends both on the implementation and the operational environment.
The results from this verification and validation should be used as the technical subset in a future safety case, both in Sweden and internationally.
Fredriksson, Daniel, and Anders Schweitz. "Technical Verification and Validation of TIS-B using VDL Mode 4." Thesis, Linköping University, Department of Science and Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2393.
Full textThis report is a technical verification and validation of Traffic Information Service Broadcast (TIS-B) using the data link VDL Mode 4.
The main objective of the report is to examine the usefulness of TIS-B considering the results from tests performed in the Stockholm Terminal Area and for the Advanced Surface Movement Guidance and Control System (A-SMGCS) at Arlanda airport. The results are compared with the requirements that have been set by the standardisation organisations ICAO, RTCA, Eurocontrol and Eurocae. TIS-B is however such a new concept, so most of the operational requirements have not yet been defined.
The process for performing the evaluation of TIS-B involves three stages:
· Study the requirements on TIS-B, ADS-B, radar and A-SMGCS.
· Verify TIS-B by performing tests at Arlanda airport.
· Validate the test results through analysis.
A theoretical study of slot allocation optimisation is performed to decide how the slot allocation is to be implemented.
The report includes a Functional Hazard Analysis (FHA). The FHA is done to see if the applications for TIS-B are ready for implementation or if more hazard preventing actions has to be taken, before any operational actions can be performed.
The report also involves a theoretical introduction to Air Traffic Management (ATM), Surveillance techniques and TIS-B.
All parts included in the report results in conclusions and recommendations regarding the TIS-B service.
Cesarini, Ettore. "Stima streaming di sottospazi principali." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17897/.
Full textDotti, Michele. "Stima dell'assetto di un UAV." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6362/.
Full textSaladžinskas, Žilvinas. "Kvalifikuotos ir kokybiškos pagalbos stomuotiems pacientams organizavimo problemos stacionarinėse asmens sveikatos priežiūros įstaigose." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050616_121644-36326.
Full textGo, Petrus Michaël Nicolaas Yung Han Go P. M. N. Y. H. "The continent ileostomy." Maastricht : Maastricht : Rijksuniversiteit Limburg ; University Library, Maastricht University [Host], 1986. http://arno.unimaas.nl/show.cgi?fid=5313.
Full textSjöberg, Bilstrup Katrin. "Predictable and Scalable Medium Access Control for Vehicular Ad Hoc Networks." Licentiate thesis, Halmstad University, Embedded Systems (CERES), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-5482.
Full textThis licentiate thesis work investigates two medium access control (MAC) methods, when used in traffic safety applications over vehicular ad hoc networks (VANETs). The MAC methods are carrier sense multiple access (CSMA), as specified by the leading standard for VANETs IEEE 802.11p, and self-organizing time-division multiple access (STDMA) as used by the leading standard for transponders on ships. All vehicles in traffic safety applications periodically broadcast cooperative awareness messages (CAMs). The CAM based data traffic implies requirements on a predictable, fair and scalable medium access mechanism. The investigated performance measures are channel access delay, number of consecutive packet drops and the distance between concurrently transmitting nodes. Performance is evaluated by computer simulations of a highway scenario in which all vehicles broadcast CAMs with different update rates and packet lengths. The obtained results show that nodes in a CSMA system can experience unbounded channel access delays and further that there is a significant difference between the best case and worst case channel access delay that a node could experience. In addition, with CSMA there is a very high probability that several concurrently transmitting nodes are located close to each other. This occurs when nodes start their listening periods at the same time or when nodes choose the same backoff value, which results in nodes starting to transmit at the same time instant. The CSMA algorithm is therefore both unpredictable and unfair besides the fact that it scales badly for broadcasted CAMs. STDMA, on the other hand, will always grant channel access for all packets before a predetermined time, regardless of the number of competing nodes. Therefore, the STDMA algorithm is predictable and fair. STDMA, using parameter settings that have been adapted to the vehicular environment, is shown to outperform CSMA when considering the performance measure distance between concurrently transmitting nodes. In CSMA the distance between concurrent transmissions is random, whereas STDMA uses the side information from the CAMs to properly schedule concurrent transmissions in space. The price paid for the superior performance of STDMA is the required network synchronization through a global navigation satellite system, e.g., GPS. That aside since STDMA was shown to be scalable, predictable and fair; it is an excellent candidate for use in VANETs when complex communication requirements from traffic safety applications should be met.
Ciaroni, Riccardo. "Stima dello stato nelle reti di distribuzione." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/17249/.
Full textLinguerri, Matteo. "Stima della portata cardiaca dalla pressione aortica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/6386/.
Full textJänes, Arthur. "Parastomal hernia : clinical studies on definitions and prevention." Doctoral thesis, Umeå universitet, Kirurgi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-36142.
Full textEmbargo, publiceras 2011-05-01
Fantoni, Maria Elena. "Stima dei parametri di cinematismi ad inerzia variabile." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Find full textSantini, Davide. "Stima della complianza totale arteriosa: il metodo esponenziale." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19758/.
Full textCasali, Alessandro. "Stima della portata cardiaca tramite cardiografia ad impedenza." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/5300/.
Full textSoldati, Luca. "Stima della funzionalità cardiaca mediante tecniche ad ultrasuoni." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/5093/.
Full textPlacucci, Elisa. "Stima della frequenza respiratoria per un ventilatore polmonare." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
Find full textErdman, Sofie, and Alvrud Sara D. "ADJUSTING TO A LIFE WITH AN INTESTINAL STOMA." Thesis, Malmö högskola, Fakulteten för hälsa och samhälle (HS), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-25599.
Full textThe aim of this study was to illustrate how life changes for patients who go through an ostomy surgery. The method used for the study was a literature review which included both qualitative and quantitative articles. Ten articles were included and the results were presented under three headings; sexuality, psychologically and socially. The results showed that patients with an ostomy require a lot of information and support from people whom they are close to. The body image is very affected according to many of the studies. The results of the literature review might give the caring nurse an increased awareness of the requirement of information and support that could be given to the patients for a higher quality of care.
Floodeen, Hannah. "Defunctioning stoma in low anterior resection of the rectum for cancer : Aspects of stoma reversal, anastomotic leakage, anorectal function, and cost-effectiveness." Doctoral thesis, Örebro universitet, Institutionen för medicinska vetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-49021.
Full textBenincasa, Antonio. "Deep-learning per stima della confidenza di mappe depth." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Find full textAndreoli, Riccardo. "Stima del Gas negli Smart Contract Ethereum: una Rassegna." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
Find full textBaratti, Emanuele <1983>. "Stima dei parametri di modelli idrologici mediante ottimizzazione dell’utilità." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6654/.
Full textIn the majority of rainfall-runoff modelling applications, the objective function to be minimised in the parameterisation procedure is based on a measure of the goodness-of-fit that maximized the fit of the simulated data to the overall observed data, taking partially into account the specific model applications. The present dissertation focuses on the development and testing of an objective function based on the expected utility of the rainfall-runoff model. The method is based on the evidence that the performances of a hydrological model closely depend on the purpose of the application. For istance, the simulated data caught have different utility in a water resources management system or in a flood forecasting system. In the proposed method, at each time step, the comparison between simulated and observed data is carried out by using an “ad-hoc” utility function. The calibration is performed by maximizing the overall estimated utility of the simulated data. Different utility functions are tested and the results are compared against those obtained with traditional procedure. The results reveal that an adequate utility function allows an improvement of the model performances in the reproduction of the discharges considered most important to the purpose of the modeling application.
Perrone, Raffaele. "Tecniche di stima dell'energia dissipata in urti contro manufatti." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amslaurea.unibo.it/2883/.
Full textGruppuso, Filippo Maria. "Studio geologico e geomorfologico della fascia costiera del Golfo di Castellammare (Sicilia settentrionale)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.
Find full textKiseliova, Natalija. "Slaugytojo vaidmuo rengiant pacientus stomos formavimui." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20140626_185516-82634.
Full textA number of stoma patients is increasing both in the world and in Lithuania. Although there has been a considerable progress in surgery techniques and stoma care instruments in Lithuania during the last decade, the preparation of patients for stoma surgery and after-surgery care is still insufficient. Stoma surgery still remains an urgent issue in the physical, social, financial, sexual and psychological aspects. So far the investigation of patients education and the role of medical nurses in preparing patients for stoma surgery was scarce, although lately it is receiving more attention. For this reason, we decided to evaluate the role of medical nurse in preparing patients for stoma surgery. Object of study: to evaluate the role of medical nurse in preparing patients for life with stoma. Tasks of study. To establish the role of a medical nurse in selecting the optimum stoma location. To define the role of a medical nurse in providing patients with information about stoma during pre-surgery period. To define the role of a medical nurse in educating patients on the basic care of stoma, nutrition and bathing peculiarities, also changes in daily habits during the post-surgery period. To define the role of a medical nurse in solving psychological problems of patients. Population of study. 46 patients treated in the Abdominal Surgery Centre of Vilnius University Hospital “Santariškių Clinics“. Methods of study. Object of study: the role of a medical nurse in preparing patients for... [to full text]
Manni, Aldo. "Tecnologie innovative per la stima di severità delle stenosi coronariche." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13205/.
Full textPrete, Alfredo. "Stima di parametri clinici in pazienti Parkinsoniani attraverso modelli matematici." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Find full textOrioli, Beatrice. "Stima della complianza totale arteriosa: metodo del ciclo "complianza-pressione"." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19366/.
Full textBattaglia, Giacomo Maria Federico. "Stima della portata media cardiaca da dati di ventilazione meccanica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20778/.
Full textMatthiessen, Peter. "Rectal cancer surgery : Defunctioning stoma, anastomotic leakage and postoperative monitoring." Doctoral thesis, Linköping : Univ, 2006. http://www.bibl.liu.se/liupubl/disp/disp2006/med940s.pdf.
Full textColasurdo, Marco. "Metodo di stima della portata cardiaca media basato su modello." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/4867/.
Full textCheng, Ai Lian Elena. "Algoritmi per la stima del rumore nella ricostruzione di immagini." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7894/.
Full textSaunders, Stephanie. "Living with a Stoma After Surgical Resection for Rectal Cancer: An Interpretive Phenomenological Study to Understand How Stomas Can Affect Physical Activity." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37308.
Full textVitulli, Marta. "Studio della costante k per la stima della pressione media arteriosa." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14781/.
Full textWilson, Iseult M. "An exploration of low back pain in people with a stoma." Thesis, University of Ulster, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.535145.
Full textLee, Chi-chuen Antonio, and 利志全. ""Let's do it ourselves!": a self-help group of stoma patients." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1988. http://hub.hku.hk/bib/B31248172.
Full textSensini, Alberto. "Individuazione e stima di parametri per la valutazione di ottiche endoscopiche." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3991/.
Full textMogliani, Luigi. "Il metodo "Pulse Pressure" per la stima della complianza arteriosa totale." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/5233/.
Full textYoungman, Kristen. "The impact of a temporary stoma on an individual's self-concept." Thesis, University of Hull, 2015. http://hydra.hull.ac.uk/resources/hull:13105.
Full textSindoni, Franco Emilio. "Stima della temperatura dei magneti in una macchina Brushless a sei fasi." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19613/.
Full textWilliams, Julia Margaret. "A qualitative exploration of the transmission of knowledge and skills by specialist stoma care nurses to facilitate the needs of patients adapting to a newly formed stoma." Thesis, King's College London (University of London), 2016. https://kclpure.kcl.ac.uk/portal/en/theses/a-qualitative-exploration-of-the-transmission-of-knowledge-and-skills-by-specialist-stoma-care-nurses-to-facilitate-the-needs-of-patients-adapting-to-a-newly-formed-stoma(73cb8634-e86e-40f5-85c5-bf5a1aaec2be).html.
Full textJanson, Robert, and Amir Mottaghi. "FPGA-design av en STDM-baserad multiplexer för seriell multiprotokollskommunikation." Thesis, Linköpings universitet, Elektroniksystem, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-76442.
Full textBeltrano, Michele. "Utilizzo dell'effetto fotoacustico per la stima del livello di glucosio nel sangue." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13329/.
Full textMolari, Giada. "Tecniche innovative per la stima della batimetria fluviale da DEM globali satellitari." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/12569/.
Full textVandi, Alessandro. "Analisi comparativa di strumenti per la stima dei parametri del salto verticale." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14333/.
Full textIzzo, Jacopo. "Stima non invasiva della portata media cardiaca con il metodo dell'espirazione prolungata." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16637/.
Full textDrudi, Cristian. "Stima non invasiva della portata media cardiaca attraverso misure sui gas respiratori." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18974/.
Full textGentile, Federico. "Sviluppo di una rondella piezoelettrica per la stima della pressione nel cilindro." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20058/.
Full textAngelini, Andrea. "Metodologia per la stima dell’impatto sulla qualità dell’aria di sorgenti civili diffuse." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15372/.
Full textVigorito, Christian. "Implementazione di algoritmi di stima della distanza con segnali a bassa frequenza." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3534/.
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