Density

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Designing High-Density Cities

Author : Edward Ng
Publisher : Earthscan
ISBN 13 : 1849774447
Total Pages : 385 pages
Book Rating : 4.8/5 (497 download)

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Book Synopsis Designing High-Density Cities by : Edward Ng

Download or read book Designing High-Density Cities written by Edward Ng and published by Earthscan. This book was released on 2009-12-16 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compact living is sustainable living. High-density cities can support closer amenities, encourage reduced trip lengths and the use of public transport and therefore reduce transport energy costs and carbon emissions. High-density planning also helps to control the spread of urban suburbs into open lands, improves efficiency in urban infrastructure and services, and results in environmental improvements that support higher quality of life in cities. Encouraging, even requiring, higher density urban development is a major policy and a central principle of growth management programmes used by planners around the world. However, such density creates design challenges and problems. A collection of experts in each of the related architectural and planning areas examines these environmental and social issues, and argues that high-density cities are a sustainable solution. It will be essential reading for anyone with an interest in sustainable urban development.

Practical Density Measurement and Hydrometry

Author : S.V Gupta
Publisher : CRC Press
ISBN 13 : 9781420033670
Total Pages : 388 pages
Book Rating : 4.0/5 (336 download)

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Book Synopsis Practical Density Measurement and Hydrometry by : S.V Gupta

Download or read book Practical Density Measurement and Hydrometry written by S.V Gupta and published by CRC Press. This book was released on 2002-07-21 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction of the ISO 9000 quality standard resulted in renewed interest and pressure on industry to strengthen their quality and metrology standards. To meet this renewed interest Practical Density Measurement and Hydrometry provides invaluable, contemporary information on mass metrology. The book highlights the principles of physics involved and the technology needed to accurately measure the density of solids and liquids to high precision to meet the increasing demands on the metrology industry. Starting with national and international density standards, the book proceeds to discuss the variety of methods used to accurately measure solid and liquid density, to compare and contrast these techniques, and to thoroughly explain the thermal dilation of liquids. It also examines interferometers used in dimensional measurements of solid-based density standards, corrections applicable due to finite aperture, phase change due to reflection and ringing, and special methods for density determination. The final chapters detail specific points of relevance to density measurements and hydrometry for materials commonly used in industry. Complimented with practical guidance on applying these measurement techniques, calibration procedures, and data tables, this book is an essential reference for metrologists and a valuable introduction for graduate students.

Power Density

Author : Vaclav Smil
Publisher : MIT Press
ISBN 13 : 0262326930
Total Pages : 319 pages
Book Rating : 4.2/5 (623 download)

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Book Synopsis Power Density by : Vaclav Smil

Download or read book Power Density written by Vaclav Smil and published by MIT Press. This book was released on 2015-06-05 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first systematic, quantitative appraisal of power density, offering detailed reviews of power densities of renewable energy flows, fossil fuels, and all common energy uses. “There's no author whose books I look forward to more than Vaclav Smil.” —Bill Gates In this book, Vaclav Smil argues that power density is a key determinant of the nature and dynamics of energy systems. Any understanding of complex energy systems must rely on quantitative measures of many fundamental variables. Power density—the rate of energy flux per unit of area—is an important but largely overlooked measure. Smil provides the first systematic, quantitative appraisal of power density, offering detailed reviews of the power densities of renewable energy flows, fossil fuels, thermal electricity generation, and all common energy uses. Smil shows that careful quantification, critical appraisals, and revealing comparisons of power densities make possible a deeper understanding of the ways we harness, convert, and use energies. Conscientious assessment of power densities, he argues, proves particularly revealing when contrasting the fossil fuel–based energy system with renewable energy conversions. Smil explains that modern civilization has evolved as a direct expression of the high power densities of fossil fuel extraction. He argues that our inevitable (and desirable) move to new energy arrangements involving conversions of lower-density renewable energy sources will require our society—currently dominated by megacities and concentrated industrial production—to undergo a profound spatial restructuring of its energy system.

What Floats? What Sinks?

Author : Jennifer Boothroyd
Publisher : Lerner Publications TM
ISBN 13 : 1512465135
Total Pages : 33 pages
Book Rating : 4.5/5 (124 download)

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Book Synopsis What Floats? What Sinks? by : Jennifer Boothroyd

Download or read book What Floats? What Sinks? written by Jennifer Boothroyd and published by Lerner Publications TM. This book was released on 2017-08-01 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Audisee® eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience! A rock sinks in the water. A hot air balloon floats in the air. Many objects float and sink. But what makes them move this way? And how do people use floating and sinking in their lives? Read this book to find out! Learn all about matter, energy, and forces in the Exploring Physical Science series—part of the Lightning Bolt BooksTM collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt BooksTM bring nonfiction topics to life!

Polymer Chemistry

Author : David M. Teegarden
Publisher : NSTA Press
ISBN 13 : 0873552210
Total Pages : 305 pages
Book Rating : 4.8/5 (735 download)

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Book Synopsis Polymer Chemistry by : David M. Teegarden

Download or read book Polymer Chemistry written by David M. Teegarden and published by NSTA Press. This book was released on 2004 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This high school textbook introduces polymer science basics, properties, and uses. It starts with a broad overview of synthetic and natural polymers and then covers synthesis and preparation, processing methods, and demonstrations and experiments. The history of polymers is discussed alongside the s

Density is Home

Author : Aurora Fernández Per
Publisher :
ISBN 13 : 9788461512379
Total Pages : 397 pages
Book Rating : 4.5/5 (123 download)

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Book Synopsis Density is Home by : Aurora Fernández Per

Download or read book Density is Home written by Aurora Fernández Per and published by . This book was released on 2011 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conté: Aires Mateus : Housing for the Elderly, Alcácer do Sal ; Alberola, Díaz-Mauriño, Martorell : Vara de Rey, Madrid ; Arch. Workshop : Klarheit, Tokyo ; B612: Dolez, Brussels ; Batlle i Roig : Vilamarina Housing and Shopping Centre, Viladecans ; BIG : 8 House, Copenhagen ; Bogdan & Van Broeck/VBM : The Maltery, Leuven ; Brendeland & Kristoffersen : Svalbard Housing, Longyearbyen ; Chiba Manabu : Stitch, Tokyo ; Colomès Nomdedeu : Student Housing, Troyes ; Diener & Diener/MCBAD/Paillard : Zac Seguin Housing, Boulogne Billancourt ; Druot, Lacaton & Vassal : Tour Bois le Pretre, Paris ; Edouard François : Coming Out, Grenoble ; EE/ECDM/MG/PG/MVRDV : Le Monolithe, Lyon ; EM2N : Rosenberg Conversion, Winterthur ; Guidotti : Rosa Housing, Monte Carasso ; Hamonic + Masson : Docks Dombasles, Le Havre ; Jordi Garcés : Non-Conventional Housing, Barcelona ; Kempe Thill : Atriumtower Hiphouse, Zwolle ; Kempe Thill : Urban Renewal Europarei, Uithoorn ; Lion, Lapierre, Gap, Berim : Square des Sports, Gonesse ; Marlies Rohmer : Neighbourhood Factory, Amsterdam ; MGM : Monte Hacho Housing, Ceuta ; Moriko Kira : IJburg Block 65b, Amsterdam ; Moussafir/Katz/Tachon : Emile Chaîne Area Regeneration, Paris ; Nicolas Michelin : Grand Large-Neptune, Dunkirk ; Pampols : 19 Youth Housing, Lleida ; Rueda Pizarro : 64 social Housing Units, Madrid ; S333 : Arch Street, London ; S333: Block 3, Tarling East, London ; Serrat, Egea, García : Can Travi Elderly Housing, Barcelona ; TOA : Housing, Sports Hall and Community Gardens, Paris ; VA Studio : MD housing, Vila Nova de Gaia ; Victor López Cotelo : Caramoniña Housing, Santiago de Compostela ; Wiel Arets : 4 Towers Osdorp, Amsterdam ; X-TU : Duploye Housing, Paris ; ZigZag : Vivazz, Mieres.

Density of Solids and Liquids

Author : Peter Hidnert
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Density of Solids and Liquids by : Peter Hidnert

Download or read book Density of Solids and Liquids written by Peter Hidnert and published by . This book was released on 1950 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Density-Functional Theory of Atoms and Molecules

Author : Robert G. Parr
Publisher : Oxford University Press
ISBN 13 : 0195357736
Total Pages : 344 pages
Book Rating : 4.1/5 (953 download)

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Book Synopsis Density-Functional Theory of Atoms and Molecules by : Robert G. Parr

Download or read book Density-Functional Theory of Atoms and Molecules written by Robert G. Parr and published by Oxford University Press. This book was released on 1994-05-26 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a rigorous, unified account of the fundamental principles of the density-functional theory of the electronic structure of matter and its applications to atoms and molecules. Containing a detailed discussion of the chemical potential and its derivatives, it provides an understanding of the concepts of electronegativity, hardness and softness, and chemical reactivity. Both the Hohenberg-Kohn-Sham and the Levy-Lieb derivations of the basic theorems are presented, and extensive references to the literature are included. Two introductory chapters and several appendices provide all the background material necessary beyond a knowledge of elementary quantum theory. The book is intended for physicists, chemists, and advanced students in chemistry.

The Low-Density University

Author : Edward J. Maloney
Publisher : JHU Press
ISBN 13 : 1421440970
Total Pages : 106 pages
Book Rating : 4.4/5 (214 download)

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Book Synopsis The Low-Density University by : Edward J. Maloney

Download or read book The Low-Density University written by Edward J. Maloney and published by JHU Press. This book was released on 2020-08-18 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: COVID-19 has placed American higher education at a crossroads. This book is the roadmap. COVID-19 triggered an existential crisis for American higher education. Faced with few safe choices, most colleges and universities switched to remote learning during the 2020 spring semester. The future, however, provides more choices about how institutions can fulfill their mission of teaching and research. But how do we begin to make decisions in an uncertain and shifting environment? In this concise guide, authors Edward J. Maloney and Joshua Kim lay out clear ways colleges and universities can move forward in safe and effective ways. The Low-Density University presents fifteen scenarios for how colleges and universities can address the current crisis from a fully online semester to others with students in residence and in the classroom. How can changing the calendar or shifting to hybrid models of blended classrooms impact teaching, learning, and the college experience? Could we emerge from this crisis with new models that are better and more adapted to today's world? The Low-Density University focuses primarily on teaching and learning, but student life (housing, athletics, health, etc.) are core to the college experience. Can we devise safe and effective ways to preserve the best of that experience? The lessons here extend beyond the classroom. Just as the pandemic will change American higher education, the choices we make now will change what college looks like for generations to come.

Density Waves In Solids

Author : George Gruner
Publisher : CRC Press
ISBN 13 : 0429969562
Total Pages : 288 pages
Book Rating : 4.4/5 (299 download)

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Book Synopsis Density Waves In Solids by : George Gruner

Download or read book Density Waves In Solids written by George Gruner and published by CRC Press. This book was released on 2018-03-08 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: ?Density Waves in Solids is written for graduate students and scientists interested in solid-state sciences. It discusses the theoretical and experimental state of affairs of two novel types of broken symmetry ground states of metals, charge, and spin density waves. These states arise as the consequence of electron-phonon and electron-electron interactions in low-dimensional metals.Some fundamental aspects of the one-dimensional electron gas, and of the materials with anisotropic properties, are discussed first. This is followed by the mean field theory of the phases transitions?discussed using second quantized formalism?together with the various experimental observations on the transition and on the ground states. Fluctuation effects and the collective excitations are reviewed next, using the Ginzburg-Landau formalism, followed by the review of the interaction of these states with the underlying lattice and with impurities. The final chapters are devoted to the response of the ground states to external perturbations.

Density Functional Theory

Author : David S. Sholl
Publisher : John Wiley & Sons
ISBN 13 : 1118211049
Total Pages : 252 pages
Book Rating : 4.1/5 (182 download)

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Book Synopsis Density Functional Theory by : David S. Sholl

Download or read book Density Functional Theory written by David S. Sholl and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demonstrates how anyone in math, science, and engineering can master DFT calculations Density functional theory (DFT) is one of the most frequently used computational tools for studying and predicting the properties of isolated molecules, bulk solids, and material interfaces, including surfaces. Although the theoretical underpinnings of DFT are quite complicated, this book demonstrates that the basic concepts underlying the calculations are simple enough to be understood by anyone with a background in chemistry, physics, engineering, or mathematics. The authors show how the widespread availability of powerful DFT codes makes it possible for students and researchers to apply this important computational technique to a broad range of fundamental and applied problems. Density Functional Theory: A Practical Introduction offers a concise, easy-to-follow introduction to the key concepts and practical applications of DFT, focusing on plane-wave DFT. The authors have many years of experience introducing DFT to students from a variety of backgrounds. The book therefore offers several features that have proven to be helpful in enabling students to master the subject, including: Problem sets in each chapter that give readers the opportunity to test their knowledge by performing their own calculations Worked examples that demonstrate how DFT calculations are used to solve real-world problems Further readings listed in each chapter enabling readers to investigate specific topics in greater depth This text is written at a level suitable for individuals from a variety of scientific, mathematical, and engineering backgrounds. No previous experience working with DFT calculations is needed.

Density Functional Theory

Author : Eberhard Engel
Publisher : Springer Science & Business Media
ISBN 13 : 3642140904
Total Pages : 543 pages
Book Rating : 4.6/5 (421 download)

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Book Synopsis Density Functional Theory by : Eberhard Engel

Download or read book Density Functional Theory written by Eberhard Engel and published by Springer Science & Business Media. This book was released on 2011-02-14 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Density Functional Theory (DFT) has firmly established itself as the workhorse for atomic-level simulations of condensed phases, pure or composite materials and quantum chemical systems. This work offers a rigorous and detailed introduction to the foundations of this theory, up to and including such advanced topics as orbital-dependent functionals as well as both time-dependent and relativistic DFT. Given the many ramifications of contemporary DFT, the text concentrates on the self-contained presentation of the basics of the most widely used DFT variants: this implies a thorough discussion of the corresponding existence theorems and effective single particle equations, as well as of key approximations utilized in implementations. The formal results are complemented by selected quantitative results, which primarily aim at illustrating the strengths and weaknesses of particular approaches or functionals. The structure and content of this book allow a tutorial and modular self-study approach: the reader will find that all concepts of many-body theory which are indispensable for the discussion of DFT - such as the single-particle Green's function or response functions - are introduced step by step, along with the actual DFT material. The same applies to basic notions of solid state theory, such as the Fermi surface of inhomogeneous, interacting systems. In fact, even the language of second quantization is introduced systematically in an Appendix for readers without formal training in many-body theory.

Coal Geology

Author : Larry J. Thomas
Publisher : John Wiley & Sons
ISBN 13 : 9780471485315
Total Pages : 400 pages
Book Rating : 4.4/5 (853 download)

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Book Synopsis Coal Geology by : Larry J. Thomas

Download or read book Coal Geology written by Larry J. Thomas and published by John Wiley & Sons. This book was released on 2002-10-30 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal Geology provides a complete integrated handbook on coal and all its properties, covering the physical and chemical properties of coal as well as coal petrology. It describes the age and occurence of coal; coal sampling and analysis; coal exploration; geophysics and hydrogeology of coal and coal mining techniques. It also discusses environmental concerns and computer technology, and includes an update on global coal reserves and production figures. First reference book to cover all aspects of coal geology in one volume Includes current thinking on environmental issues Presents a useful synopsis of the alternative uses of coal as a fuel Contains the distribution and reserves of coal deposits worldwide Offers a summary of the use of computing in coal studies, as well as coal sales and marketing opportunities Includes International Standards listings This up-to-date handbook successfully bridges the gap between academic aspects of coal geology and the practical role of geology in the coal industry and will be invaluable for all professionals and students in coal geology, geotechnical and mining engineering, and environmental science.

Vertical Density Representation And Its Applications

Author : Shuihung Hou
Publisher : World Scientific
ISBN 13 : 9814483613
Total Pages : 266 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Vertical Density Representation And Its Applications by : Shuihung Hou

Download or read book Vertical Density Representation And Its Applications written by Shuihung Hou and published by World Scientific. This book was released on 2004-02-06 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a new research topic in statistics — vertical density representation (VDR). The theory of VDR has been found to be useful for developing new ideas and methodologies in statistics and management science. The first paper related to VDR appeared in 1991. Several others have since been published and work is continuing on the topic. The purpose of this book is to survey the results presented in those papers and provide some new, unpublished results.VDR may be regarded as a special kind of transformation. By assuming that a variate is uniformly distributed on the contours of a given function in real n-dimensional space, and considering the density of the ordinate of the given function, the density of the original variate can be represented. The book discusses basic results and extensions. In particular, the uniform assumption on contours is relaxed to the general case. Applications are presented in Monte Carlo simulation, chaos-based uniform random number generation, and what may be called behavioral estimation. In addition, the authors include a new result in analyzing correlation into two separate components, which provides flexibility in modeling correlated phenomena, such as when combining expert estimates.

What is Density?

Author : Joanne Barkan
Publisher : Children's Press(CT)
ISBN 13 : 9780516236186
Total Pages : 36 pages
Book Rating : 4.2/5 (361 download)

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Book Synopsis What is Density? by : Joanne Barkan

Download or read book What is Density? written by Joanne Barkan and published by Children's Press(CT). This book was released on 2006 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains what density is, using examples from a birthday party--such as a room filling with people, a floating balloon, and the bubbles in a cup of soda--to illustrate the concept.

Soft City

Author : David Sim
Publisher : Island Press
ISBN 13 : 1642830186
Total Pages : 257 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Soft City by : David Sim

Download or read book Soft City written by David Sim and published by Island Press. This book was released on 2019-08-20 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Imagine waking up to the gentle noises of the city, and moving through your day with complete confidence that you will get where you need to go quickly and efficiently. Soft City is about ease and comfort, where density has a human dimension, adapting to our ever-changing needs, nurturing relationships, and accommodating the pleasures of everyday life. How do we move from the current reality in most cites—separated uses and lengthy commutes in single-occupancy vehicles that drain human, environmental, and community resources—to support a soft city approach? In Soft City David Sim, partner and creative director at Gehl, shows how this is possible, presenting ideas and graphic examples from around the globe. He draws from his vast design experience to make a case for a dense and diverse built environment at a human scale, which he presents through a series of observations of older and newer places, and a range of simple built phenomena, some traditional and some totally new inventions. Sim shows that increasing density is not enough. The soft city must consider the organization and layout of the built environment for more fluid movement and comfort, a diversity of building types, and thoughtful design to ensure a sustainable urban environment and society. Soft City begins with the big ideas of happiness and quality of life, and then shows how they are tied to the way we live. The heart of the book is highly visual and shows the building blocks for neighborhoods: building types and their organization and orientation; how we can get along as we get around a city; and living with the weather. As every citizen deals with the reality of a changing climate, Soft City explores how the built environment can adapt and respond. Soft City offers inspiration, ideas, and guidance for anyone interested in city building. Sim shows how to make any city more efficient, more livable, and better connected to the environment.

Environmental Hydrology, Second Edition

Author : Andy D. Ward
Publisher : CRC Press
ISBN 13 : 9781566706162
Total Pages : 514 pages
Book Rating : 4.7/5 (61 download)

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Book Synopsis Environmental Hydrology, Second Edition by : Andy D. Ward

Download or read book Environmental Hydrology, Second Edition written by Andy D. Ward and published by CRC Press. This book was released on 2003-12-18 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technological advances of recent years include the emergence of new remote sensing and geographic information systems that are invaluable for the study of wetlands, agricultural land, and land use change. Students, hydrologists, and environmental engineers are searching for a comprehensive hydrogeologic overview that supplements information on hydrologic processes with data on these new information technology tools. Environmental Hydrology, Second Edition builds upon the foundation of the bestselling first edition by providing a qualitative understanding of hydrologic processes while introducing new methods for quantifying hydrologic parameters and processes. Written by authors with extensive multidisciplinary experience, the text first discusses the components of the hydrologic cycle, then follows with chapters on precipitation, stream processes, human impacts, new information system applications, and numerous other methods and strategies. By updating this thorough text with the newest analytical tools and measurement methodologies in the field, the authors provide an ideal reference for students and professionals in environmental science, hydrology, soil science, geology, ecological engineering, and countless other environmental fields.