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Selling disaster : how the Canadian public was informed of DieppeBalzer, Timothy John 10 April 2008 (has links)
This thesis examines the handling of the public relations and subsequent news reporting of the 1942 Dieppe raid. Based on official communiques the Canadian newspapers initially portrayed Dieppe as success and featured human-interest stories written by war correspondents. The revelations of the heavy casualties and a more detailed explanation led some newspapers to criticize the raid, although their reactions reflected their political positions. The Canadian military conducted a campaign to sell the value of Dieppe to the Canadian public, largely patterned on the public relations plans of Mountbatten's Combined Operations Headquarters that distracted fiom failure by emphasising heroism, alleged successes, and the lessons learned. War correspondents actively assisted the military's publicity efforts. General McNaughton wanted a more truthful account, but ultimately chose coalition needs over accurate independent publicity. The information campaign although persuasive for many, left numerous Canadians unconvinced that the raid was successful.
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The 1866 Fenian Raid on Canada WestD'Angelo, A. Tyler 24 September 2009 (has links)
This thesis examines Canada West’s colonial perceptions and reactions towards the Fenian Brotherhood in the Confederation era. Its focus is on the impact of the Fenians on the contemporary public mind, beginning in the fall of 1864 and culminating with the Fenian Raid on the Niagara frontier in June 1866. Newspapers, sermons, first-hand accounts, and popular poems and books from the time suggest the Fenians had a significant impact on the public mind by nurturing and reflecting the province’s social and defensive concerns, and the Raid on Canada West was used by contemporaries after the fact to promote Confederation and support a young Canadian identity. / Thesis (Master, History) -- Queen's University, 2009-09-24 00:17:49.563
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Adhesive Bonding of Concrete-steel Composite Bridges by Polyurethane ElastomerCheung, Billy Siu Fung 30 July 2008 (has links)
This thesis is motivated by the use of full-depth, precast, prestressed concrete panels to facilitate deck replacement of composite bridges. The shear pockets required in using convention shear stud connections, however, can cause durability problems. The objective of this study is to investigate the possibility of eliminating the use of shear studs, and adhesively bond the concrete and steel sections.
The feasibility of the developed polyurethane adhesive joint is defined based on the serviceability and ultimate limit states. The joint must have sufficient stiffness that additional deflection due to slip must not be excessive. The adhesive and bond must also have sufficient strength to allow the development of the full plastic capacity of the composite section. The use of the developed adhesive joint in typical composite bridges was found to be feasible. The behaviour under live load was found to be close to a fully composite section.
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Adhesive Bonding of Concrete-steel Composite Bridges by Polyurethane ElastomerCheung, Billy Siu Fung 30 July 2008 (has links)
This thesis is motivated by the use of full-depth, precast, prestressed concrete panels to facilitate deck replacement of composite bridges. The shear pockets required in using convention shear stud connections, however, can cause durability problems. The objective of this study is to investigate the possibility of eliminating the use of shear studs, and adhesively bond the concrete and steel sections.
The feasibility of the developed polyurethane adhesive joint is defined based on the serviceability and ultimate limit states. The joint must have sufficient stiffness that additional deflection due to slip must not be excessive. The adhesive and bond must also have sufficient strength to allow the development of the full plastic capacity of the composite section. The use of the developed adhesive joint in typical composite bridges was found to be feasible. The behaviour under live load was found to be close to a fully composite section.
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PARAID the Gear-Shifting Power-Aware RAID /Weddle, Charles O. Wang, An-I Andy. January 2005 (has links)
Thesis (M. S.)--Florida State University, 2005. / Advisor: Dr. An-I Andy Wang, Florida State University, College of Arts and Sciences, Dept. of Computer Science Title and description from dissertation home page (viewed Sept. 15, 2005). Document formatted into pages; contains xi, 71 pages. Includes bibliographical references.
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A Secure, Reliable and Performance-Enhancing Storage Architecture Integrating Local and Cloud-Based StorageHansen, Christopher Glenn 01 December 2016 (has links)
The constant evolution of new varieties of computing systems - cloud computing, mobile devices, and Internet of Things, to name a few - have necessitated a growing need for highly reliable, available, secure, and high-performing storage systems. While CPU performance has typically scaled with Moore's Law, data storage is much less consistent in how quickly performance increases over time. One method of improving storage performance is through the use of special storage architectures. Such architectures often include redundant arrays of independent disks (RAID). RAID provides a meaningful way to increase storage performance on a variety of levels, some higher-performing than others. The fastest performing arrays, however, come at the expense of data reliability, preventing their use in many applications. In this thesis, a storage architecture is presented which utilizes the highest performing RAID architecture (RAID 0) combined with highly available cloud storage in order to maximize storage performance and reliability, while providing an additional benefit of security that is not currently provided by similar storage architectures. Various levels of RAID and the current field of RAID and RAID-like technologies are outlined. Furthermore, the benefits of combining local and cloud storage in RAID configurations, including the ability to recover data in the event of a simultaneous failure of all local disks within an array, are discussed. Reliability calculations are performed, and a 3x Mean Time to Failure (MTTF) improvement over existing systems is shown. The MTTF, privacy, read/write throughput, and usable storage percentage improvements of local+cloud-RAID 4 and local+cloud-RAID-DP are discussed. Thereafter, a software implementation of local+cloud-RAID 4 is presented and discussed, allowing for notable benefits over existing architectures in terms of reliability and privacy while maintaining performance. Finally, a novel hardware-based local+cloud-RAID controller architecture is described and discussed.
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Zálohování dat a datová úložiště / Data Backup and Data StoragesJaníček, Libor January 2020 (has links)
The master´s thesis focuses on problematics associated with data backup and storages. It deals with the realistic data backup issue at a real municipal office. Part of the work is a thorough analysis of the current state and suggestions for improvement.
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Accurate Hardware RAID SimulatorWeng, Darrin Kalung 01 June 2013 (has links)
Computer data storage is growing at an astonishing rate. With cloud computing and the growth of the Internet enterprise storage has been predicted to grow at rates as high as 300\% per year. To fulfill this need technologies such as Redundant Array of Independent Disks or RAID are being used in industry today. Not only does RAID increase I/O performance but also provides redundancy measures to protect against hardware failure. Even though RAID has existed for some time now and is well understood, proprietary optimizations such as command scheduling and cache strategies that are employed by current RAID controllers are not well known. This thesis presents a model for RAID 5 that incorporates these features and describes the overall function of hardware RAID controllers. Also a python implementation of this model, Accurate Hardware RAID Simulator (AHRS) is presented and validated against a current hardware RAID controller. It is shown that AHRS can reproduce the behavior of a hardware RAID system with an accuracy of 97.92\% on average compared to a LSI hardware RAID controller.
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Zálohování a archivace dat v prostředí malé firmy / Data Backup and Archiving in Small Business EnvironmentSvitana, Tomáš January 2012 (has links)
Purpose of my master’s thesis is an initial analysis of the current status of the selected company, which follows the basic theoretical background of the issue. Essential part of thesis is developing draft of backup and archive system in a small business environment, which will be applied in practice with respect to the maximum economic and qualitative aspects of the system.
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Accelerated Storage SystemsKhasymski, Aleksandr Sergeev 11 March 2015 (has links)
Today's large-scale, high-performance, data-intensive applications put a tremendous stress on data centers to store, index, and retrieve large amounts of data. Exemplified by technologies such as social media, photo and video sharing, and e-commerce, the rise of the real-time web demands data stores support minimal latencies, always-on availability and ever-growing capacity. These requirements have fostered the development of a large number of high-performance storage systems, arguably the most important of which are Key-Value (KV) stores. An emerging trend for achieving low latency and high throughput in this space is a solution, which utilizes both DRAM and flash by storing an efficient index for the data in memory and minimizing accesses to flash, where both keys and values are stored. Many proposals have examined how to improve KV store performance in this area. However, these systems have shortcomings, including expensive sorting and excessive read and write amplification, which is detrimental to the life of the flash.
Another trend in recent years equips large scale deployments with energy-efficient, high performance co-processors, such as Graphics Processing Units (GPUs). Recent work has explored using GPUs to accelerate compute-intensive I/O workloads, including RAID parity generation, encryption, and compression. While this research has proven the viability of GPUs to accelerate these workloads, we argue that there are significant benefits to be had by developing methods and data structures for deep integration of GPUs inside the storage stack, in order to achieve better performance, scalability, and reliability.
In this dissertation, we propose comprehensive frameworks that leverage emerging technologies, such as GPUs and flash-based SSDs, to accelerate modern storage systems. For our accelerator-based solution, we focus on developing a system that features deep integration of the GPU in a distributed parallel file system. We utilize a framework that builds on the resources available in the file system and coordinates the workload in such a way that minimizes data movement across the PCIe bus, while exposing data parallelism to maximize the potential for acceleration on the GPU. Our research aims to improve the overall reliability of a PFS by developing a distributed per-file parity generation that provides end-to-end data integrity and unprecedented flexibility. Finally, we design a high-performance KV store utilizing a novel data structure tailored to specific flash requirements; it arranges data on flash in such a way as to minimize write amplification, which is detrimental to the flash cells. The system delivers outstanding read amplification through the use of a trie index and false positive filter. / Ph. D.
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