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Low-power network design: work hard, play hard
(2019)Competing in a well-known competition in a field that you have no experience in can be hard for sure. In this semester thesis, we describe how we managed to design a low-power wireless protocol for a sensor network in less than 3 months of part-time work. Baloo is a novel protocol design framework, which offers an abstraction layer from the underlying hardware and enables fast protocol prototyping. Using Baloo, our goal was to create a ...Student Paper -
Low-Power Network Design: Work Hard, Play Hard
(2019)With the rapid expansion of the Internet of Things, an increasing number of applications relies on reliable, energy-efficient, and low-latency communication between small networked wireless devices. A large number of wireless communication protocols dealing with these challenges have been proposed in recent years. Their performance typically varies greatly with the application and environment they are used in. The EWSN Dependability ...Student Paper -
Is low-power wireless networking a reproducible science?
(2019)Recently, a noticeable number of attempts to reproduce experimental results across many different scientific fields were unsuccessful. In the field of low- power wireless networking, the dynamic behavior of the environment causes an inherited variability in the performance of wireless networking protocols, placing under consideration their reproducibility. In this semester project, a methodology for evaluating the performance of low- power ...Student Paper -
Preparation and characterization of mechanically alloyed, yttria containing steel powder for additive manufacturing of dispersion strengthened steels
(2019)Oxide-dispersion-strengthened (ODS) steel is a material that is being studied for its potential in high-temperature and high-irradiation applications, such as nuclear fusion reactors or IV generation fission reactors. Its properties derive from the presence of nano-dispersed oxide particles that act as a barrier against the movement of dislocations, hence reducing susceptibility to creep, and as sinks for irradiation-induced defects, thus ...Student Paper -
Chance-Constrained Programming for Autonomous Vehicles in Uncertain Environments
(2018)Trajectory planning in uncertain environments arises in several autonomous system applications including robotics, air traffic and autonomous driving. An approach to handle uncertainties with sufficiently high safety guarantees is through chance-constrained optimization. In this work, we consider the problem of trajectory planning for an autonomous vehicle in an uncertain environment comprised of a number of obstacles. First, we explore ...Student Paper -
Unleashing the potential of Real-time Internet of Things
(2017)With the recent surge in the interest for the Internet of Things (IoT) and an increased deployment of cyber-physical systems (CPS) in commercial and indus- trial applications, distributed systems have gained a significance influence on modern civilization and are performing increasingly complex tasks. Building such platforms in a reliable manner is challenging, as they include concurrent tasks on the application and the communication ...Student Paper -
Real-time network functions for the Internet of Things
(2017)The Internet of Things is evolving, more and more devices are getting connected, more data exchanged and increasingly complex tasks are handled by these net- works. Especially, low-power wireless communication networks are widely used due to the flexibility and fast deployment with a battery. The networks must be at low cost and still guarantee a long battery life time and compute a com- plex task. The goal of this thesis is to ...Student Paper -
Fault-Tolerance Mechanisms for Glossy-based Wireless Communication Networks
(2017)Flooding-based communication with protocols such as Glossy is being used in- creasingly in low-power wireless communication for multi-hop networks because of its efficiency and reliability. For example, Glossy can achieve packet reception rates above 99.99% in real-life tests. However, faults like interference can still occur, causing a packet to get lost, and, up-to-date, most Glossy-based communi- cation protocols do not take such ...Student Paper -
The Worm Algorithm for the CP(N-1) Model
(2011)The problem of critical slowing down is reviewed and a comprehensive description of how to measure the efficiency of Monte Carlo algorithms in practice is given. Special regard is paid to the O(N) and CP(N-1) models. The dynamic critical exponents of Wolff's single-cluster algorithm are determined on the two-dimensional O(3) and CP(3) models to confirm its efficiency on the former and inefficiency on the latter. The idea of worm ...Student Paper -
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CLAIRE
(2017)CLAIRE is nothing yet. Notwithstanding it is so important that it received a name. The project is complex, the innovative concept carries different aspects so that it has been decided to use ’CLAIRE’ when one means to speak about the whole idea. In general CLAIRE is a knowledge management tool, naively CLAIRE is a program, a platform, a scientific map, etc. Until there, the reader may be careful to the abusive use of ”is”: it does not ...Student Paper -
The Comfort of Urban Cores: Understanding the Development, Qualities and Livability of Altstetten
(2017)Altstetten is one of the most rapily changing districts in the city of Zürich. Being crucial to Zürich’s future development, Altstetten’s spatial development as well as perception are of great interest. It offers a wide variety of characteristics, from a work-driven office district to a calm living area and busy industrial areas turning into lively mixed-used residential zones. During a short-term study during the summer of 2017 we ...Student Paper -
CEU (Centros Educacionair Unificados) : Translating socio-democratic values through the formation of community integrated educational spaces
(2017)The CEUs, or Unified Education Centres (Centros de Educacao Unificados) are public facilities conceived as local centres of urban life, located in the peripheral and disenfranchised areas of São Paulo, Brazil. The facilities are intended for education, culture and sport and are for both school students and the surrounding community. The centres were developed by the Municipal Buildings Department (EDIF), and designed by the architects ...Student Paper -
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Untersuchung der turbulenten Grenzschichte einer Lavaldüse mittels CFD-Modellierung
(2006)Student Paper