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Building Robust Distributed Infrastructure NetworksBenshoof, Brendan 09 May 2016 (has links)
Many competing designs for Distributed Hash Tables exist exploring multiple models of addressing, routing and network maintenance. Designing a general theoretical model and implementation of a Distributed Hash Table allows exploration of the possible properties of Distributed Hash Tables. We will propose a generalized model of DHT behavior, centered on utilizing Delaunay triangulation in a given metric space to maintain the networks topology. We will show that utilizing this model we can produce network topologies that approximate existing DHT methods and provide a starting point for further exploration. We will use our generalized model of DHT construction to design and implement more efficient Distributed Hash Table protocols, and discuss the qualities of potential successors to existing DHT technologies.
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A DISTRIBUTED, LOW-POWER TELEMETRY SYSTEM FOR SOLAR RACE CAR APPLICATIONSTuomey, E. S., Velasquez, G., Slade, S., Bunker, K., Reyes, E., Yousefnejad, T. 10 1900 (has links)
International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California / This student paper was produced as part of the team design competition in the University of Arizona course ECE 485, Radiowaves and Telemetry. It describes the design of a telemetry system for the University of Arizona’s Daedalus solar car. This is a distributed, low-power, telemetry-on-demand system that solves many of the problems typically encountered in this specialized telemetry application. The topology of the distributed microcontroller system is shown, as are optimal command and data packet structures. Also featured is a high-gain, low profile antenna system designed specifically for the solar car. Additionally, a customized chase car operator interface is illustrated.
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SPIRIT III Data Verification ProcessingGarlick, Dean, Wada, Glen, Krull, Pete 10 1900 (has links)
International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California / This paper will discuss the functions performed by the Spatial Infrared Imaging Telescope
(SPIRIT) III Data Processing Center (DPC) at Utah State University (USU). The SPIRIT
III sensor is the primary instrument on the Midcourse Space Experiment (MSX) satellite;
and as builder of this sensor system, USU is responsible for developing and operating the
associated DPC. The SPIRIT III sensor consists of a six-color long-wave infrared (LWIR)
radiometer system, an LWIR spectrographic interferometer, contamination sensors, and
housekeeping monitoring systems. The MSX spacecraft recorders can capture up to 8+
gigabytes of data a day from this sensor. The DPC is subsequently required to provide a
24-hour turnaround to verify and qualify these data by implementing a complex set of
sensor and data verification and quality checks. This paper addresses the computing
architecture, distributed processing software, and automated data verification processes
implemented to meet these requirements.
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Synchronized Data Transportation for Distributed Acquirement System Through Direct Ethernet Connection and TDMWan, Zhongjie, Qi, Shengyuan, Song, Jian, Wang, Haijiao 10 1900 (has links)
ITC/USA 2015 Conference Proceedings / The Fifty-First Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2015 / Bally's Hotel & Convention Center, Las Vegas, NV / To use Ethernet is the most convenient way to set up a transportation network for a telemetry data acquirement system. However, due to its CSMA/CD (Carrier Sense Multiple Access and Collision Detection) mechanics, Ethernet cannot transport data synchronously. This paper analyzed important features of transportation in a distributed data acquirement system, and presents a resolve for synchronously transporting data in a distributed data acquirement system by using direct Ethernet connection and TDM (time division multiplexing) technique.
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The role of authority and context in shaping leadership processesand distribution in business school departments: an exploratory studyRothenberg, Neil 07 1900 (has links)
Since the turn of the century interest has grown in alternative models of
leadership to reflect increased complexity and ambiguity, the need to respond
faster to complex market conditions, and new patterns of accountability, inter-
dependency and co-ordination within organisations of all types. This has led to
the emergence of alternative models of leadership including shared and
distributed leadership. In many organisations, such as those with matrix
structures, many leaders need to accomplish organisational goals without
formal line management authority over employees. This is also the case in
many professional services (e.g. law and consultancy) that operate partnership
models whereby individuals have little direct authority over their peers. In
University settings the governance structure also impedes traditional
hierarchical leadership. The tenure system, operated by many universities and
colleges in the United States and Canada, provides intellectual autonomy,
protects academics from external pressure and offers job security. Despite a
growing literature on shared and distributed leadership, few studies have
empirically examined the nature of leadership distribution, the contextual factors
that impact leadership, and how those in senior positions (e.g. university
department chairs) achieve organisational goals when employees (e.g. faculty
members) possess significant authority and autonomy. This study addresses
this gap. In so doing the study aims to contribute to the literature on shared and
distributed leadership and provide important insight to assist positional leaders
who possess limited direct authority in more effectively accomplishing their
leadership goals. ...[cont.]
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Efficient and resilient distributed algorithms for comparisonproblems陳敏兒, Chan, Mee-yee. January 1987 (has links)
published_or_final_version / Computer Science / Doctoral / Doctor of Philosophy
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Document replication and distribution algorithms for load balancing ingeographically distributed web server systemsZhuo, Ling, 卓玲 January 2002 (has links)
published_or_final_version / Computer Science and Information Systems / Master / Master of Philosophy
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Large object space support for software distributed shared memoryCheung, Wang-leung, Benny., 張宏亮. January 2005 (has links)
published_or_final_version / abstract / Computer Science / Doctoral / Doctor of Philosophy
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Process roamingHo, Sai-chuen., 何世全. January 2007 (has links)
published_or_final_version / abstract / Computer Science / Doctoral / Doctor of Philosophy
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Parallel and distributed cyber-physical system simulationPfeifer, Dylan Conrad 06 November 2014 (has links)
The traditions of real-time and embedded system engineering have evolved into a new field of cyber-physical systems (CPSs). The increase in complexity of CPS components and the multi-domain engineering composition of CPSs challenge the current best practices in design and simulation. To address the challenges of CPS simulation, this work introduces a simulator coordination method drawing from strengths of the field of parallel and distributed simulation (PADS), yet offering benefits aimed towards the challenges of coordinating CPS engineering design simulators. The method offers the novel concept of Interpolated Event data types applied to Kahn Process Networks in order to provide simulator coordination. This can enable conservative and optimistic coordination of multiple heterogeneous and homogeneous simulators, but provide important benefits for CPS simulation, such as the opportunity to reduce functional requirements for simulator interfacing compared to existing solutions. The method is analyzed in theoretical properties and instantiated in software tools SimConnect and SimTalk. Finally, an experimental study applies the method and tools to accelerate Spice circuit simulation with tradeoffs in speed versus accuracy, and demonstrates the coordination of three heterogeneous simulators for a CPS simulation with increasing component model refinement and realism. / text
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