A microgrid is a local energy grid that could be disconnected from the larger grid and operate autonomously. This particular segment of the power industry is growing due to its reliability during times of emergency and crisis. Among these benefits are improved efficiency, lower operating costs, renewable generation sources, and improved resiliency of the regional electric grid. Communities can better prepare for unprecedented weather like wildfires, hurricanes, and other natural disasters. Regions that produce renewable energy can export their surplus through high voltage transmission lines to balance power supply and demand needs. This Underground High-Voltage Transmission Network project aims to design a blueprint for an underground high voltage transmission network that connects the Cal Poly Solar Farm to campus via an underground network. This Solar Farm produces 4.5MW and provides a quarter of Cal Poly’s power demand, making it essential to everyday operations on campus. The safety of the communities living around these areas is a top priority. The project develops methods to examine network resiliency and analyze load growth or demography trends. These methods include: using GIS to properly locate any existing underground infrastructure and utilizing CYMCAP software to size cable. We use ETAP software to run load flow analysis and device coordination simulation.

This work offers a complete critical overview of the samizdat magazine Sado-Maso1 published in Prague in the years 1983-1986. I tried to make a complete overview and characteristics of the magazine - the main themes of each issue, historical, ideological and literary context of publishing of the Sado-Maso magazine. I also mention publications which were connected with the S-M magazine - independent movies, other samizdat magazines and books. In the Attachment there is article bibliography (containing indexes), covers of the Sado-Maso individual issues, interviews with authors and conterporary witnesses, copies of ,StB' documentary where Sado-Maso magazine was mentioned connected with Klín and Satan Actions. Egon Bondy's essay Zaplaťpánbů za "underground" published exclusively in Sado- Maso Nr. 7 ½ is presented here in commented edition. The goal of this work is to provide information about a not well-known part of Czechoslovak underground culture - a part which still has not been paid much attention on the side of literary history. 1 The title ,Sado-Maso' and the abreviation ,S-M' are used in the same meaning. Keywords SAMIZDAT, MAGAZINES, SADO-MASO, JEN PRO BLÁZNY, OPIUM PRO LID, (ZEN)BUDDHISM, ECOLOGY, ANARCHISM, PSYCHOLOGY, PUNK, MOVIES OF THE SO-CALLED INDEPENDENT PRODUCTION, VISUAL ARTS,...

Les réseaux de capteurs sans fils enfouis (RCSFE) sont des réseaux comportant des capteurs et leurs antennes enfouis dans la matière, en particulier enfouis dans le sol. Ils présentent un grand intérêt dans de nombreux domaines d’activités, comme le contrôle de l’environnement, l’agriculture de précision, la navigation et la sécurité. Les systèmes existants sont à bandes étroites et fonctionnent à des fréquences inférieures à 1 GHz. Ces systèmes impliquent l’utilisation d’antennes encombrantes, ce qui complique leur déploiement et peut conduire à des coûts élevés. De plus l’utilisation de largeurs de bandes étroites limite les débits de communications possibles et la résolution envisageables dans les applications de localisation. Enfin, les systèmes actuels sont gourmands en énergie, ce qui limite la durée de vie des éléments enfouis.Pour remédier à ces inconvénients pour certaines applications des RCSFE, on propose dans cette thèse d’utiliser la technique ultralarge bande (ULB) en bande normalisée 3,1 – 10,6 GHz dans les RCSFE. Cette technique permet l’utilisation d’antennes compactes, la simplification du déploiement, l’amélioration de la précision de localisation et l’augmentation du débit de communication et de la durée de vie des capteurs.Pour étudier la faisabilité des RCSFE ULB, nous avons conçu et réalisé trois antennes ULB compactes et en analyser l’effet du sol sur les performances de ces antennes ULB enfouies et sur les liens de communication ULB enfoui. En comparaison à un fonctionnement dans l’air, l’enfouissement dans le sol décale la bande passante de l’antenne vers les basses fréquences. Ce décalage augmente avec la teneur en eau du sol. L’atténuation apportée par le canal ULB enfoui augmente avec la fréquence de fonctionnement, la profondeur d’enfouissement et la teneur en eau du sol. Cependant, nous avons montré que des liaisons fiables sont possibles pour des distances de propagation dans le sol inférieures à 30 cm et des teneurs en eau inférieures à 20% / Wireless underground sensor networks (WUSN) consist of sensors which are buried in a medium with their antennas, in particular in soil. They attract a huge interest in different fields, like environment monitoring, precise agriculture, navigation and security. The existing narrowband systems operate at frequencies below 1 GHz. These systems imply the use of cumbersome antennas, which complicates the deployment and increases its cost. Furthermore, the use of narrow bandwidths limits the possible communication data rates and the potential resolution in localization applications. Finally, current systems are very energy consuming, which limits the lifetime of the underground elements.To overcome these drawbacks for certain applications of WUSN, we propose in this thesis the use of ultra wideband technology (UWB), in the normalized band 3.1 - 10.6 GHz, in WUSN. This technique allows the use of compact antennas, simplifying deployment, improving the localization accuracy and increasing communication data rates and the lifetime of the underground sensors.In order to assess the feasibility study of UWB WUSN, we have designed and realized three compact UWB antennas and analyzed the effect of soil on the performances of these underground UWB antennas and on the underground UWB communication links. Compared with operating in free space, burying the antenna shifts the antenna bandwidth towards low frequencies. This shift increases with soil water content. The attenuation introduced by the buried UWB channel, increases with the operating frequency, the burial depth and the soil moisture. However, we have shown that reliable communications are possible for distances of propagation in soil smaller than 30 cm and soil water contents below 20%

Compressed air leakage accounts for up to 42% of electrical energy loss on a typical mine compressed air system. By using underground control valves it is possible to reduce the amount of air leakage. Underground valve control was successfully implemented in a South African mine. The project implementation and achieved results are documented in this study. The implementation of underground control valves initially requires a large capital investment. In this study the electrical and financial savings realised by underground valve control and surface valve control were calculated. The payback periods for each control strategy were determined and compared. It was determined that underground valve control can realise up to 40% higher electrical savings than surface control. Depending on the size of the mine and due to the large initial investment, the payback period for an underground valve control system can be up to six times longer than that of a surface control system. / MIng (Mechanical Engineering), North-West University, Potchefstroom Campus, 2014

Compressed air leakage accounts for up to 42% of electrical energy loss on a typical mine compressed air system. By using underground control valves it is possible to reduce the amount of air leakage. Underground valve control was successfully implemented in a South African mine. The project implementation and achieved results are documented in this study. The implementation of underground control valves initially requires a large capital investment. In this study the electrical and financial savings realised by underground valve control and surface valve control were calculated. The payback periods for each control strategy were determined and compared. It was determined that underground valve control can realise up to 40% higher electrical savings than surface control. Depending on the size of the mine and due to the large initial investment, the payback period for an underground valve control system can be up to six times longer than that of a surface control system. / MIng (Mechanical Engineering), North-West University, Potchefstroom Campus, 2014

Over the past decade, underground power distribution has become increasingly popular due to its reliability, safety, aesthetic characteristics, as well as the ever increasing focus on the environmental impacts of the various stages of power generation and distribution. With the technological advances in this area, the process of running these cables have become more economical and efficient. This thesis explores the practice of grouping multiple three phase cables in a common conduit, using the duct bank process, and analyzes the thermal and ampacity consequences on the individual lines. This analysis is done in an effort to better define and understand the various limitations of the practice and explore future possibilities in its expansion.

Over the past decade, popular music in Iran has steadily gained recognition beyond its borders. The Western media has increasingly provided an idealised and romanticised view of music-making in the Iranian underground. These reports create an image of popular musicians united under the same political and social challenges, while struggling to be heard against an oppressive regime. Contrary to these often overly politicised accounts, the current Iranian youth generation continues to explore its identity through the creation of new hybridised forms of popular music. This dissertation utilises first-hand accounts of musicians and those involved in Iranian popular music to analyse the current state of popular music in Iran since 1979. By recognising the heterogeneity of the Iranian post-revolutionary pop world, this study distinguishes the individual voices and experiences that make up the dynamic and multifaceted popular music scene in young, urban Iran and the Iranian diaspora. Opening with a historical account of music’s fluctuating relationship with regime censorship, this dissertation illuminates the many contradictions of popular music practice in a controlled climate that are also embedded within youth identity. Dichotomies continually emerge during this discourse, including globalisation vs. localism, authentic vs. borrowed, and home vs. homeland. These themes are prolific throughout the discussions of the illegal underground music scene in Tehran, the complexities of music in exile, and the final discussion of the role of popular music in the 2009 presidential election and subsequent Green Movement. Popular music continues to serve as an outlet for pleasure and entertainment while simultaneously representing the diverse voices of the young generation of Iranians in the world, as they seek to assert their identity and establish a future of their own.

published_or_final_version / Electrical Engineering / Master / Master of Science in Engineering

published_or_final_version / Urban Planning / Master / Master of Science in Urban Planning

published_or_final_version / abstract / Mechanical Engineering / Master / Master of Philosophy