Download or read book Tools and Methods for Analysis Debugging and Performance Improvement of Equation Based Models written by Martin Sjölund and published by Linköping University Electronic Press. This book was released on 2015-05-11 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Equation-based object-oriented (EOO) modeling languages such as Modelica provide a convenient, declarative method for describing models of cyber-physical systems. Because of the ease of use of EOO languages, large and complex models can be built with limited effort. However, current state-of-the-art tools do not provide the user with enough information when errors appear or simulation results are wrong. It is of paramount importance that such tools should give the user enough information to correct errors or understand where the problems that lead to wrong simulation results are located. However, understanding the model translation process of an EOO compiler is a daunting task that not only requires knowledge of the numerical algorithms that the tool executes during simulation, but also the complex symbolic transformations being performed. As part of this work, methods have been developed and explored where the EOO tool, an enhanced Modelica compiler, records the transformations during the translation process in order to provide better diagnostics, explanations, and analysis. This information is used to generate better error-messages during translation. It is also used to provide better debugging for a simulation that produces unexpected results or where numerical methods fail. Meeting deadlines is particularly important for real-time applications. It is usually essential to identify possible bottlenecks and either simplify the model or give hints to the compiler that enable it to generate faster code. When profiling and measuring execution times of parts of the model the recorded information can also be used to find out why a particular system model executes slowly. Combined with debugging information, it is possible to find out why this system of equations is slow to solve, which helps understanding what can be done to simplify the model. A tool with a graphical user interface has been developed to make debugging and performance profiling easier. Both debugging and profiling have been combined into a single view so that performance metrics are mapped to equations, which are mapped to debugging information. The algorithmic part of Modelica was extended with meta-modeling constructs (MetaModelica) for language modeling. In this context a quite general approach to debugging and compilation from (extended) Modelica to C code was developed. That makes it possible to use the same executable format for simulation executables as for compiler bootstrapping when the compiler written in MetaModelica compiles itself. Finally, a method and tool prototype suitable for speeding up simulations has been developed. It works by partitioning the model at appropriate places and compiling a simulation executable for a suitable parallel platform.

Download or read book The Induction Machine Handbook written by Ion Boldea and published by CRC Press. This book was released on 2010-12-12 with total page 965 pages. Available in PDF, EPUB and Kindle. Book excerpt: Often called the workhorse of industry, the advent of power electronics and advances in digital control are transforming the induction motor into the racehorse of industrial motion control. Now, the classic texts on induction machines are nearly three decades old, while more recent books on electric motors lack the necessary depth and detail on ind

Download or read book Innovating with Concept Mapping written by Alberto Cañas and published by Springer. This book was released on 2016-08-20 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 7th International Conference on Concept Mapping, CMC 2016, held in Tallinn, Estonia, in September 2016. The 25 revised full papers presented were carefully reviewed and selected from 135 submissions. The papers address issues such as facilitation of learning; eliciting, capturing, archiving, and using “expert” knowledge; planning instruction; assessment of “deep” understandings; research planning; collaborative knowledge modeling; creation of “knowledge portfolios”; curriculum design; eLearning, and administrative and strategic planning and monitoring.

Download or read book Endoscopy in Neuro otology written by Jacques Magnan and published by Thieme. This book was released on 1999 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endoscopy is firmly established as a major technology for investigation and therapy in a wide range of disciplines. The field of otolaryngology or head and neck surgery owes its existence to the very special difficulties of examining the dark recesses of the head and neck. Therefore, this field has been at the forefront of developing endoscopic techniques for use in this anatomic area. While rhinologists have been quick to embrace the endoscope in the management of sinus disorders, otologists and skull base surgeons have been less than enthusiastic despite the vast range of possible applications in this area. In this book the authors consider the new field of application of endoscope technology in neuro-otology and skull base surgery. Dr. Sanna is part of The Grupppo Otologico, a world-renowned specialist center for the diagnosis and medical and surgical treatment of diseases of the ear, skull base, facial nerve, head and neck, and paranasal sinuses.

Download or read book RF Design Guide written by Peter Vizmuller and published by Artech House. This book was released on 1995 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gain fast access to design information required for any RF communication project using high-frequency circuits and systems with this bestseller. It contains measurement methods, system calculations, statistical procedures, and actual circuit and measurement examples that help you shorten design cycles, improve quality, and reduce design risks. Augmented with 400 equations and 210 figures, the book is an ideal reference for product designers and consultants in the RF and wireless communications industry and an outstanding learning tool for classroom use.

Download or read book English Medium Instruction written by Ernesto Macaro, and published by Oxford University Press. This book was released on 2018-02-19 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ernesto Macaro brings together a wealth of research on the rapidly expanding phenomenon of English Medium Instruction. Against a backdrop of theory, policy documents, and examples of practice, he weaves together research in both secondary and tertiary education, with a particular focus on the key stakeholders involved in EMI: the teachers and the students. Whilst acknowledging that the momentum of EMI is unlikely to be diminished, and identifying its potential benefits, the author raises questions about the ways it has been introduced and developed, and explores how we can arrive at a true cost–benefit analysis of its future impact. “This state-of-the-art monograph presents a wide-ranging, multi-perspectival yet coherent overview of research, policy, and practice of English Medium Instruction around the globe. It gives a thorough, in-depth, and thought-provoking treatment of an educational phenomenon that is spreading on an unprecedented scale.” Guangwei Hu, National Institute of Education, Singapore Additional online resources are available at www.oup.com/elt/teacher/emi Ernesto Macaro is Professor of Applied Linguistics at the University of Oxford and is the founding Director of the Centre for Research and Development on English Medium Instruction at the university. Oxford Applied Linguistics Series Advisers: Anne Burns and Diane Larsen-Freeman

Download or read book Energy Efficiency in Buildings written by José Manuel Andújar and published by MDPI. This book was released on 2020-04-28 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Buildings are one of the main causes of the emission of greenhouse gases in the world. Europe alone is responsible for more than 30% of emissions, or about 900 million tons of CO2 per year. Heating and air conditioning are the main cause of greenhouse gas emissions in buildings. Most buildings currently in use were built with poor energy efficiency criteria or, depending on the country and the date of construction, none at all. Therefore, regardless of whether construction regulations are becoming stricter, the real challenge nowadays is the energy rehabilitation of existing buildings. It is currently a priority to reduce (or, ideally, eliminate) the waste of energy in buildings and, at the same time, supply the necessary energy through renewable sources. The first can be achieved by improving the architectural design, construction methods, and materials used, as well as the efficiency of the facilities and systems; the second can be achieved through the integration of renewable energy (wind, solar, geothermal, etc.) in buildings. In any case, regardless of whether the energy used is renewable or not, the efficiency must always be taken into account. The most profitable and clean energy is that which is not consumed.

Download or read book Advanced Research in Technologies Information Innovation and Sustainability written by Teresa Guarda and published by Springer Nature. This book was released on 2021-11-17 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the First International Conference on Advanced Research in Technologies, Information, Innovation and Sustainability, ARTIIS 2021, held in La Libertad, Ecuador, in November 2021. The 53 full papers and 2 short contributions were carefully reviewed and selected from 155 submissions. The volume covers a variety of topics, such as computer systems organization, software engineering, information storage and retrieval, computing methodologies, artificial intelligence, and others. The papers are logically organized in the following thematic blocks: ​Computing Solutions; Data Intelligence; Ethics, Security, and Privacy; Sustainability.

Download or read book HVDC Grids written by Dirk Van Hertem and published by John Wiley & Sons. This book was released on 2016-02-23 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses HVDC grids based on multi-terminal voltage-source converters (VSC), which is suitable for the connection of offshore wind farms and a possible solution for a continent wide overlay grid. HVDC Grids: For Offshore and Supergrid of the Future begins by introducing and analyzing the motivations and energy policy drives for developing offshore grids and the European Supergrid. HVDC transmission technology and offshore equipment are described in the second part of the book. The third part of the book discusses how HVDC grids can be developed and integrated in the existing power system. The fourth part of the book focuses on HVDC grid integration, in studies, for different time domains of electric power systems. The book concludes by discussing developments of advanced control methods and control devices for enabling DC grids. Presents the technology of the future offshore and HVDC grid Explains how offshore and HVDC grids can be integrated in the existing power system Provides the required models to analyse the different time domains of power system studies: from steady-state to electromagnetic transients This book is intended for power system engineers and academics with an interest in HVDC or power systems, and policy makers. The book also provides a solid background for researchers working with VSC-HVDC technologies, power electronic devices, offshore wind farm integration, and DC grid protection.

Download or read book Conference on Advanced Technology in Design and Manufacturing written by and published by Eusko Jaurlaritza. This book was released on 1988 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guaranteed Student Loans written by United States. General Accounting Office and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Embedded Systems Architecture written by Tammy Noergaard and published by Newnes. This book was released on 2012-12-31 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Embedded Systems Architecture is a practical and technical guide to understanding the components that make up an embedded system's architecture. This book is perfect for those starting out as technical professionals such as engineers, programmers and designers of embedded systems; and also for students of computer science, computer engineering and electrical engineering. It gives a much-needed 'big picture' for recently graduated engineers grappling with understanding the design of real-world systems for the first time, and provides professionals with a systems-level picture of the key elements that can go into an embedded design, providing a firm foundation on which to build their skills. - Real-world approach to the fundamentals, as well as the design and architecture process, makes this book a popular reference for the daunted or the inexperienced: if in doubt, the answer is in here! - Fully updated with new coverage of FPGAs, testing, middleware and the latest programming techniques in C, plus complete source code and sample code, reference designs and tools online make this the complete package - Visit the companion web site at http://booksite.elsevier.com/9780123821966/ for source code, design examples, data sheets and more - A true introductory book, provides a comprehensive get up and running reference for those new to the field, and updating skills: assumes no prior knowledge beyond undergrad level electrical engineering - Addresses the needs of practicing engineers, enabling it to get to the point more directly, and cover more ground. Covers hardware, software and middleware in a single volume - Includes a library of design examples and design tools, plus a complete set of source code and embedded systems design tutorial materials from companion website

Download or read book Federal School Code List written by and published by . This book was released on 2007 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Transport Processes written by Bruce E. Logan and published by John Wiley & Sons. This book was released on 2012-03-20 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique approach to the challenges of complex environmental systems Environmental Transport Processes, Second Edition provides much-needed guidance on mass transfer principles in environmental engineering. It focuses on working with uncontrolled conditions involving biological and physical systems, offering examples from diverse fields, including mass transport, kinetics, wastewater treatment, and unit processes. This new edition is fully revised and updated, incorporating modern approaches and practice problems at the end of chapters, making the Second Edition more concise, accessible, and easy to use. The book discusses the fundamentals of transport processes occurring in natural environments, with special emphasis on working at the biological physical interface. It considers transport and kinetics in terms of systems that involve microorganisms, along with in-depth coverage of particles, size spectra, and calculations for particles that can be considered either spheres or fractals. The book's treatment of particles as fractals is especially unique and the Second Edition includes a new section on exoelectrogenic biofilms. It also addresses dispersion in natural and engineered systems unlike any other book on the subject. Readers will learn to tackle with confidence complex environmental systems and make transport calculations in heterogeneous environments with mixtures of chemicals.

Download or read book Computer Organization and Architecture written by Stallings and published by Pearson Education India. This book was released on 2008-02 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sampling in Digital Signal Processing and Control written by Arie Feuer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Undoubtably one of the key factors influencing recent technology has been the advent of high speed computational tools. Virtually every advanced engi neering system we come in contact with these days depends upon some form of sampling and digital signal processing. Well known examples are digital tele phone systems, digital recording of audio signals and computer control. These developments have been matched by the appearance of a plethora of books which explain a variety of analysis, synthesis and design tools applica ble to sampled-data systems. The reader might therefore wonder what is distinc tive about the current book. Our observation of the existing literature is that the underlying continuous-time system is usually forgotten once the samples are tak en. The alternative point of view, adopted in this book, is to formulate the analy sis in such a way that the user is constantly reminded of the presence of the under lying continuous-time signals. We thus give emphasis to two aspects of sampled-data analysis: Firstly, we formulate the various algorithms so that the appropriate contin uous-time case is approached as the sampling rate increases. Secondly we place emphasis on the continuous-time output response rath er than simply focusing on the sampled response.

Download or read book Manga High written by Michael Bitz and published by Harvard Education Press. This book was released on 2009-05-01 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a four-year study, Manga High explores the convergence of literacy, creativity, social development, and personal identity in one of New York City’s largest high schools. Since 2004, students at Martin Luther King, Jr., High School in Manhattan have been creating manga—Japanese comic books. They write the stories, design the characters, and publish their works in print and on the Internet. These students—African-American and Latino teenagers—are more than interested in the art and medium of manga. They have become completely engrossed in Japanese language, culture, and society. Manga High is highlighted by reproductions and content analysis of students’ original art and writing. An appendix includes guidelines for educators on starting a comic book club.