Download or read book Efficient Redundancy Design Practices written by T. M. Palmer and published by IWA Publishing. This book was released on 2003-02-01 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of wastewater treatment plants with redundancy to assure a quality end product may be in conflict with efforts to assure effectiveness. Redundancy of major system components is to assure compliance with regulations and protection of the environment and the health and safety of the public and treatment plant staff. However, the capital costs and maintenance associated with redundant equipment does not necessarily enhance facility performance. There are a number of forces driving the level of redundancy in plant designs. Federal and state compliance regulations and the design engineer's past experiences will influence the plant design. To some extent the plant staff may also provide input into the plant design and, therefore, contributes to the redundancy. This report determines alternative methods to address treatment plant redundancy, including examples of methods currently in place and, ideally, insight on the premises leading to these applications. A secondary objective is to identify the similarities and differences in redundancy requirements associated with federal and state regulatory agencies. This publication can also be purchased and downloaded via Pay Per View on Water Intelligence Online - click on the Pay Per View icon below

Download or read book Efficient Redundancy Design Practices written by Tony M. Palmer and published by . This book was released on 2003-01-01 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Efficient Redundancy Design Practices written by Water Environment Research Foundation and published by . This book was released on 2004 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Highly Efficient Redundancy Scheme Self purging Redundancy written by Stanford University Stanford Electronics Laboratories. Digital Systems Laboratory and published by . This book was released on 1975 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goals of this paper are to present an efficient redundancy scheme for highly reliable systems, to give a method to compute the exact reliability of such schemes and to compare this scheme with other redundancy schemes. This redundancy scheme is self-purging redundancy; a scheme that uses a threshold voter and that purges the failed modules. Switches for self-purging systems are extremely simple: there is no replacement of failed modules and module purging is quite simply implemented. Because of switch simplicity, exact reliability calculations are possible. The effects of switch reliability are quantitatively examined. For short mission times, switch reliability is the most important factor: self-purging systems have a probability of failure several times larger than the figure obtained when switches are assumed to be perfect. The influence of the relative frequency of the diverse types of failures (permanent, intermittent, stuck-at,...) are also investigated. Reliability functions, mission time improvements and switch efficiency are displayed. Self-purging systems are compared with ot her redundant systems, like hybrid or NMR, for their relative merits in reliability gain, simplicity, cost and confidence in the reliability estimation. The high confidence in the reliability evaluation of self-purging systems makes them a standard for the validation of several models that have been proposed to take into account switch reliability. The accuracy of models using coverage factors can be evaluated that way.

Download or read book Efficient Redundancy Techniques to Reduce Delay in Cloud Systems written by Gauri Joshi and published by . This book was released on 2016 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud services are changing the world by providing millions of people low-cost access to the computing power of data centers. Storing and processing data on shared servers in the cloud provides scalability and flexibility to these services. However the large-scale sharing of resources also causes unpredictable fluctuations in the response time of individual servers. In this thesis we use redundancy as a tool to combat this variability. We study three areas of cloud infrastructure: cloud computing, distributed storage, and streaming communication. In cloud computing, replicating a task on multiple machines and waiting for the earliest copy to finish can reduce service delay. But intuitively, it costs additional computing resources, and increases queueing load on the servers. In the first part of this thesis we analyze the eect of redundancy on queues. Surprisingly, there are regimes where replication not only reduces service delay but also reduces queueing load, thus making the system more ecient. Similarly, we can speed-up content download from cloud storage systems by requesting multiple replicas of a le and waiting for any one. In the second part of the thesis we generalize from replication to coding, and propose the (n, k) fork-join model to analyze the delay in accessing an (n, k) erasure-coded storage system. This analysis provides practical insights into how many users can access a piece of content simultaneously, and how fast they can be served. Achieving low latency is even more challenging in streaming communication because the packets need to be delivered fast and in-order. The third part of this thesis develops erasure codes to transmit redundant combinations of packets and ensure smooth playback. This thesis blends a diverse set of mathematical tools from queueing, coding theory, and renewal processes. Although we focus on cloud infrastructure, the techniques and insights are applicable to other systems with stochastically varying components.

Download or read book Principles of Neural Design written by Peter Sterling and published by MIT Press. This book was released on 2017-06-09 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two distinguished neuroscientists distil general principles from more than a century of scientific study, “reverse engineering” the brain to understand its design. Neuroscience research has exploded, with more than fifty thousand neuroscientists applying increasingly advanced methods. A mountain of new facts and mechanisms has emerged. And yet a principled framework to organize this knowledge has been missing. In this book, Peter Sterling and Simon Laughlin, two leading neuroscientists, strive to fill this gap, outlining a set of organizing principles to explain the whys of neural design that allow the brain to compute so efficiently. Setting out to “reverse engineer” the brain—disassembling it to understand it—Sterling and Laughlin first consider why an animal should need a brain, tracing computational abilities from bacterium to protozoan to worm. They examine bigger brains and the advantages of “anticipatory regulation”; identify constraints on neural design and the need to “nanofy”; and demonstrate the routes to efficiency in an integrated molecular system, phototransduction. They show that the principles of neural design at finer scales and lower levels apply at larger scales and higher levels; describe neural wiring efficiency; and discuss learning as a principle of biological design that includes “save only what is needed.” Sterling and Laughlin avoid speculation about how the brain might work and endeavor to make sense of what is already known. Their distinctive contribution is to gather a coherent set of basic rules and exemplify them across spatial and functional scales.

Download or read book Supply Chain Resilience written by Sebastian Kummer and published by Springer Nature. This book was released on 2022-09-24 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every global crisis highlights the strategic importance of industrial and non-profit supply chains for society. In terms of coping with unforeseen and unpredictable events, supply chain resilience enables the parties and networks involved to stay successful during and after the disruption. Furthermore, a resilient supply chain contributes to the sustainable competitive advantage of the entire value chain. Written by scholars and practitioners alike, this book not only puts forward a new framework for resilience in supply chain management, but also presents best practice cases from various areas and industries. As a particular highlight, it includes a Delphi study that gathers state-of-the-art insights from supply chain leaders. In addition to practical approaches, methods and tools, the book also offers food for thought on the future of supply chain resilience. As such, it offers a valuable resource for current and future managers in the public and private sector, as well as researchers and students engaged in this field.

Download or read book IT Infrastructure written by Ralf Süß and published by Springer Nature. This book was released on with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reducing Labor Redundancy in State owned Enterprises written by Jan Svejnar and published by World Bank Publications. This book was released on 1991 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The severity of labor redundancy has been underestimated because of difficulties in conceptualizing the issue and finding politically acceptable solutions. Schemes to reduce labor redundancy can decrease the wage bill significantly and allow fairly high compensation to the employees laid off yet still allow the government to recoup its costs in a relatively short time.

Download or read book Next Generation Transport Networks written by Manohar Naidu Ellanti and published by Springer Science & Business Media. This book was released on 2005-04-01 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering past, present and future transport networks using three layered planes written by experts in the field. Targeted at both practitioners and academics as a single source to get an understanding of how transport networks are built and operated Explains technologies enabling the next generation transport networks

Download or read book Data Centers Design and Operations Strategies for Efficiency Resilience and Sustainability written by Charles Nehme and published by Charles Nehme. This book was released on with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welcome to "Optimizing Data Centers Design and Operations: Strategies for Efficiency, Resilience, and Sustainability." As the digital landscape evolves and organizations increasingly rely on Data Centers to support their operations, the need for efficient, resilient, and sustainable data center solutions has never been more critical. This book serves as a comprehensive guide for professionals involved in the design, construction, and operation of Data Centers. Whether you are an IT manager, Data Centers architect, facilities engineer, or industry enthusiast, this book offers valuable insights, best practices, and practical strategies to optimize Data Centers performance, reliability, and environmental impact. In today's dynamic and competitive business environment, Data Centers play a pivotal role in enabling organizations to store, process, and distribute vast amounts of data and applications. From energy-efficient cooling systems to robust disaster recovery plans, every aspect of Data Centers design and operations contributes to its overall effectiveness and sustainability. Through a combination of theoretical concepts, real-world case studies, and practical tips, this book explores key topics such as energy efficiency, resilience planning, regulatory compliance, environmental controls, and scalability. By understanding the complexities and challenges of Data Centers management, professionals can make informed decisions, implement best practices, and drive innovation in their organizations. We hope this book serves as a valuable resource for navigating the evolving landscape of Data Centers technology and operations. Whether you are embarking on a new Data Centers project or seeking to enhance the performance of an existing facility, the insights and strategies presented here will help you achieve your goals and deliver superior outcomes for your organization. Thank you for joining us on this journey toward optimizing Data Centers design and operations. We invite you to explore the pages ahead and discover the possibilities for building a more efficient, resilient, and sustainable data center infrastructure.

Download or read book SSC written by United States. Ship Structure Committee and published by . This book was released on 1992 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life Cycle Civil Engineering Innovation Theory and Practice written by Airong Chen and published by CRC Press. This book was released on 2021-02-26 with total page 2619 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life-Cycle Civil Engineering: Innovation, Theory and Practice contains the lectures and papers presented at IALCCE2020, the Seventh International Symposium on Life-Cycle Civil Engineering, held in Shanghai, China, October 27-30, 2020. It consists of a book of extended abstracts and a USB card containing the full papers of 230 contributions, including the Fazlur R. Khan lecture, eight keynote lectures, and 221 technical papers from all over the world. All major aspects of life-cycle engineering are addressed, with special emphasis on life-cycle design, assessment, maintenance and management of structures and infrastructure systems under various deterioration mechanisms due to various environmental hazards. It is expected that the proceedings of IALCCE2020 will serve as a valuable reference to anyone interested in life-cycle of civil infrastructure systems, including students, researchers, engineers and practitioners from all areas of engineering and industry.

Download or read book Data Center Handbook written by Hwaiyu Geng and published by John Wiley & Sons. This book was released on 2014-12-01 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the fundamentals, technologies, and best practices in designing, constructing and managing mission critical, energy efficient data centers Organizations in need of high-speed connectivity and nonstop systems operations depend upon data centers for a range of deployment solutions. A data center is a facility used to house computer systems and associated components, such as telecommunications and storage systems. It generally includes multiple power sources, redundant data communications connections, environmental controls (e.g., air conditioning, fire suppression) and security devices. With contributions from an international list of experts, The Data Center Handbook instructs readers to: Prepare strategic plan that includes location plan, site selection, roadmap and capacity planning Design and build "green" data centers, with mission critical and energy-efficient infrastructure Apply best practices to reduce energy consumption and carbon emissions Apply IT technologies such as cloud and virtualization Manage data centers in order to sustain operations with minimum costs Prepare and practice disaster reovery and business continuity plan The book imparts essential knowledge needed to implement data center design and construction, apply IT technologies, and continually improve data center operations.

Download or read book The Modern Data Center A Comprehensive Guide written by Charles Nehme and published by Charles Nehme. This book was released on with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Purpose of the Book In today's digital age, data centers are the backbone of virtually every industry, from finance and healthcare to entertainment and retail. This book, "The Modern Data Center: A Comprehensive Guide," aims to provide a thorough understanding of the complexities and innovations that define contemporary data centers. Whether you are an IT professional, a data center manager, or a technology enthusiast, this guide is designed to equip you with the knowledge necessary to navigate and excel in the ever-evolving landscape of data centers. The Evolution and Significance of Modern Data Centers Data centers have come a long way since the early days of computing. What began as simple server rooms has evolved into sophisticated, multi-layered environments that support a wide range of applications and services critical to modern business operations. The significance of data centers cannot be overstated—they are integral to the functioning of the internet, cloud services, and the digital infrastructure that supports our daily lives. Target Audience This book is tailored for a diverse audience: IT Professionals: Gain in-depth knowledge of the latest technologies and best practices in data center design, management, and operations. Data Center Managers: Discover strategies for optimizing performance, enhancing security, and ensuring compliance. Technology Enthusiasts: Understand the foundational concepts and future trends shaping the data center industry. Structure of the Book "The Modern Data Center: A Comprehensive Guide" is divided into five parts, each focusing on a different aspect of data centers: Foundations of Data Centers: Covers the historical evolution, core components, and architectural frameworks. Design and Planning: Discusses site selection, design principles, and capacity planning. Technologies and Trends: Explores virtualization, cloud computing, automation, and networking innovations. Operations and Management: Details day-to-day operations, monitoring, security, and compliance. Future Directions: Looks at emerging technologies, sustainability, and future trends in data center development. Key Topics Covered Historical Context: Learn about the origins and development of data centers. Core Components: Understand the essential elements that make up a data center. Modern Architectures: Explore traditional and cutting-edge data center architectures. Design and Efficiency: Discover best practices for designing scalable and sustainable data centers. Operational Excellence: Gain insights into effective data center management and operations. Technological Innovations: Stay updated on the latest trends and technologies transforming data centers. Future Insights: Prepare for the future with predictions and expert insights into the next generation of data centers. Our Journey Together As we embark on this journey through the world of modern data centers, you will gain a comprehensive understanding of how these critical infrastructures operate, evolve, and shape the future of technology. Each chapter builds on the last, providing a layered approach to learning that ensures you have a well-rounded grasp of both the theoretical and practical aspects of data centers. Thank you for choosing "The Modern Data Center: A Comprehensive Guide." Let’s dive into the intricate and fascinating world of data centers, where technology, innovation, and strategic planning converge to power the digital age.

Download or read book Spacecraft Power Systems written by Mukund R. Patel and published by CRC Press. This book was released on 2004-11-29 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: The power systems of space vehicles have undergone significant development during the previous decade, and will continue to do so in the immediate future. Until now, except for the scattered results of conferences and a few publications with sketchy coverage, no single volume has covered the entire spectrum of the subject. Spacecraft Power

Download or read book Corporate Sustainability as a Tool for Improving Economic Social and Environmental Performance written by Marco-Lajara, Bartolomé and published by IGI Global. This book was released on 2023-02-27 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world is currently witnessing a change in the business paradigm in which economic, social, and environmental variables are taken into account. In this sense, sustainable companies focus on the development of a profitability formula that, through the connection with stakeholders and the natural environment, operates in harmony with social and economic progress. In this sense, the concept of corporate sustainability refers to the attempt by companies to balance social, economic, and environmental objectives. It requires a strong orientation towards the future as well as an awareness of the need to preserve the existence and well-being of the human species. In this way, companies seek to ensure long-term business success while contributing to the economic, social, and environmental development of the territories in which they operate. Corporate Sustainability as a Tool for Improving Economic, Social, and Environmental Performance provides a guide for study, reflection, and critique to understand corporate sustainability while offering the basis for comprehending this phenomenon in different sectors of the economy. The book also sheds light on the new currents and challenges of the discipline. Covering key topics such as big data, ethical business, and strategic management, this premier reference source is ideal for business owners, managers, entrepreneurs, government officials, policymakers, researchers, academicians, practitioners, scholars, instructors, and students.