In just over a week, a group of unpaid professional and citizen journalists who met on Twitter created a book to raise money for Japanese Red Cross earthquake and tsunami relief efforts. In addition to essays, artwork and photographs submitted by people around the world, including people who endured the disaster and journalists who covered it, 2:46: Aftershocks: Stories from the Japan Earthquake contains a piece by Yoko Ono, and work created specifically for the book by authors William Gibson, Barry Eisler and Jake Adelstein. “The primary goal,” says the book's editor, a British resident of Japan, “is to record the moment, and in doing so raise money for the Japanese Red Cross Society to help the thousands of homeless, hungry and cold survivors of the earthquake and tsunami. The biggest frustration for many of us was being unable to help these victims. I don’t have any medical skills, and I’m not a helicopter pilot, but I can edit. A few tweets pulled together nearly everything – all the participants, all the expertise – and in just over a week we had created a book including stories from an 80-year-old grandfather in Sendai, a couple in Canada waiting to hear if their relatives were okay, and a Japanese family who left their home, telling their young son they might never be able to return." ONE HUNDRED PERCENT of the price you pay (net of VAT, sales and other taxes) goes to the Japanese Red Cross Society to aid the victims of the March 11 earthquake and tsunami. If you'd like to donate more, please visit the Japanese Red Cross Society website, where you can donate either via Paypal or bank transfer (watch out for the fees, though!) or the American Red Cross Society, which accepts donations directed to its Japan Earthquake and Pacific Tsunami fund (but only accepts donations made with U.S.-issued credit cards). And of course, if you like the book, please tell your friends, and tell them to give generously as well! Thank you! Japan really does appreciate your help!
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This is a handbook for Ph.D. students, providing a practical, realistic understanding of the processes of doing research for a doctorate.
New to this edition: a section on increasingly popular professional doctorates such as Ed.D., D.B.A., and D.Eng; material for supervisors of overseas, part-time, and mature students; and a diagnostic questionnaire for students to monitor progress.
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The information infrastructure---comprising computers, embedded devices, networks and software systems---is vital to day-to-day operations in every sector: information and telecommunications, banking and finance, energy, chemicals and hazardous materials, agriculture, food, water, public health, emergency services, transportation, postal and shipping, government and defense. Global business and industry, governments, indeed society itself, cannot function effectively if major components of the critical information infrastructure are degraded, disabled or destroyed. Critical Infrastructure Protection V describes original research results and innovative applications in the interdisciplinary field of critical infrastructure protection. Also, it highlights the importance of weaving science, technology and policy in crafting sophisticated, yet practical, solutions that will help secure information, computer and network assets in the various critical infrastructure sectors. Areas of coverage include: Themes and Issues, Control Systems Security, Infrastructure Security, and Infrastructure Modeling and Simulation. This book is the 5th volume in the annual series produced by the International Federation for Information Processing (IFIP) Working Group 11.10 on Critical Infrastructure Protection, an international community of scientists, engineers, practitioners and policy makers dedicated to advancing research, development and implementation efforts focused on infrastructure protection. The book contains a selection of 14 edited papers from the 5th Annual IFIP WG 11.10 International Conference on Critical Infrastructure Protection, held at Dartmouth College, Hanover, New Hampshire, USA in the spring of 2011. Critical Infrastructure Protection V is an important resource for researchers, faculty members and graduate students, as well as for policy makers, practitioners and other individuals with interests in homeland security. Jonathan Butts is an Assistant Professor of Computer Science at the Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio, USA. Sujeet Shenoi is the F.P. Walter Professor of Computer Science at the University of Tulsa, Tulsa, Oklahoma, USA.
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The development of mathematical competence -- both by humans as a species over millennia and by individuals over their lifetimes -- is a fascinating aspect of human cognition.
This book explores when and why the rudiments of mathematical capability first appeared among human beings, what its fundamental concepts are, and how and why it has grown into the richly branching complex of specialties that it is today. It discusses whether the ‘truths’ of mathematics are discoveries or inventions, and what prompts the emergence of concepts that appear to be descriptive of nothing in human experience. Also covered is the role of esthetics in mathematics: What exactly are mathematicians seeing when they describe a mathematical entity as ‘beautiful’? There is discussion of whether mathematical disability is distinguishable from a general cognitive deficit and whether the potential for mathematical reasoning is best developed through instruction.
This volume is unique in the vast range of psychological questions it covers, as revealed in the work habits and products of numerous mathematicians. It provides fascinating reading for researchers and students with an interest in cognition in general and mathematical cognition in particular. Instructors of mathematics will also find the book’s insights illuminating.
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Author: M. J. T. Lewis | Size: 2.3 MB | Format:PDF | Quality:Original preprint | Year: 2009 | pages: 410 | ISBN: 0521110653/0521792975
The Greeks and Romans achieved extraordinary feats of surveying in building their aqueducts, tunnels and roads and in measuring the circumference of the earth and the heights of mountains. This book, which contains translations of all the ancient texts on surveying instruments, including major sources hitherto untapped, sets out to reconstruct the instruments and to explain how they were used. The subject has never been tackled before in this detail, and a level of technical sophistication emerges which must count as one of the greatest achievements of the ancient world.
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kindly upload the following paper, thanks in advanced.
Wind Load Analysis and the Structure Optimization Design of the Steel Structures with ANSYS Journal ****Applied Mechanics and Materials (Volumes 37 - 38) Volume*****Advances in Engineering Design and Optimization Edited by***Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng Pages******1643-1646 DOI *******10.4028/www.scientific.net/AMM.37-38.1643 Citation*****Zhao Xin Meng et al., 2010, Applied Mechanics and Materials, 37-38, 1643 Online since**November, 2010 Authors*****Zhao Xin Meng, Jian Xin Zhao, Shu Yang Wang, Nan Zhou Keywords***Bio-Oil, Steel Structures, Wind Load
Abstract
In recent years, the bio-oil, as a new kind of clean energy, has been paid with more attentions and has been in rapid development. Meanwhile, the design and research of the bio-oil equipment also has made a great progress. This paper presented the research of the main unit installed steel structure which was with the 3000t yearly capacity. It analyzed and researched the structure and load characteristics of the bio-oil main unit installed steel structure. According to the related research theory and design standards, by using software ANSYS establish the three-dimensional model of the main unit installed steel structure. The paper also analyzed and calculated the wind load. The model structure has been optimized on the foundation of the analyzing preliminary model foundation. The stability of the equipment has been enhanced.
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The present study is focused on the effects of cellulose ethers (CEs) on the kinetics of early
Portland cement hydration. The retarding effects of cellulose ethers on the development of
single cement phases could be traced to the adsorption behaviour of the polymers. A method
was developed to quantify the amount of cellulose ether adsorbed on the surfaces of cement
phases. The specific surface area of some hydrated phases was analysed by determination of
nitrogen gas adsorption isotherms. The amount of adsorbed cellulose ether was determined by
analysing the residual free water of a cement paste by size exclusion chromatography. It could
be demonstrated that the adsorption behaviour of the polysaccharide depends on the mineral
phase and on the degree of substitution (DS), a key parameter of cellulose ether
characterization.
Beside other methods, the hydration processes were monitored in-situ by the means of ultra
sonic measurements, synchrotron X-ray and neutron powder diffraction and environmental
scanning electron microscopy using a field emission gun. The results of all independent
methods showed a good correlation. The following phase reactions could be observed within
the first 24 hours of Portland cement hydration:
1. tri-calcium aluminate + bassanite + water → ettringite (1st generation)
2. bassanite + water → gypsum
3. anhydrite + water → gypsum
4. tri-calcium aluminate + gypsum + water → ettringite (2nd generation)
5. tri-calcium silicate + water → calcium silicate hydrates + portlandite
It turned out that cellulose ethers had a strong direct effect on the hydration of the silicate
components of cement. Tri-calcium silicate and its hydration products showed the highest
values of polymer adsorption. The adsorption led to a surface intoxication and therefore to
delayed hydration reaction. The effects of cellulose ethers on the aluminates were less
specific. No CE adsorbed on the surface of ettringite, a hydration product of tri-calcium
aluminate and calcium sulphates. Nevertheless the ettringite crystallization after 4 hours was
strongly retarded by cellulose ethers depending on their DS. This retardation was an indirect
phenomenon caused by delayed development of ion-concentration in the pore water. This
delay again was a consequence of the retardation of the silicate hydration caused by cellulose
ethers. In general it can be said that the lower the degree of substitution of the cellulose
ethers, the larger the amount of adsorbed polymers and the stronger the retarding effect.
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(Execution of steel structures and aluminium structures) Part 2: Technical requirements for steel structures
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there is a new annex to BS EN 1090-2: "BS EN 1090-2:2008+A1:2011 Execution of steel structures and aluminium structures. Technical requirements for steel structures"
If someone of you have it or could find it - please share it.
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