Stepped channel design has been in use for more than 3,500 years. Recent advances in technology have triggered a regained interest in stepped design, although much expertise has been lost in the last 80 years. The steps significantly increase the rate of energy dissipation taking place along the chute and reduce the size of the required downstream energy dissipation basin. Stepped cascades are also used in water treatment plants to enhance the air-water transfer of atmospheric gases (e.g. oxygen, nitrogen) and of volatile organic components (VOC). Results from more than forty-five laboratory studies and four prototype investigations were re-analysed and compared. The book provides a new understanding of stepped channel hydraulics, and is aimed both at researchers and professionals.
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DESIGN AND CONSTRUCTION GUIDELINES FOR DOWNDRAG ON UNCOATED AND BITUMEN-COATED PILES
Author: Jean-Louis Briaud and Larry M. Tucker | Size: 6.83 MB | Format:PDF | Publisher: NCHRP | Year: 1996 | pages: 212
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Calculating stress of external prestressing tendons by A. Ghallab ; A. W. Beeby Proceedings of the ICE - Structures and Buildings, Volume 157, Issue 4, pages 263 –278 , ISSN: 0965-0911, E-ISSN: 1751-7702
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FOCUSING ON CONTAMINANT FATE AND TRANSPORT, DESIGN OF ENVIRONMENTAL-CONTROL SYSTEMS, AND REGULATORY CONSTRAINTS
This textbook details the fundamental equations that describe the fate and transport of contaminantsin the water environment. The application of these fundamental equations to the design of environmental-control systems and methodologies for assessing the impact of contaminant discharges into rivers, lakes, wetlands, ground water, and oceans are all covered. Readers learn to assess how much waste can be safely assimilatedinto a water body by developing a solid understanding of the relationship between the type of pollutant discharged, the characteristics of the receiving water, and physical, chemical, and biological impacts. In cases of surface runoff from urban and agricultural watersheds, quantitative relationships between the quality of surface runoff and the characteristics of contaminant sources located within the watersheds are presented.
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Some reference papers on stone column design are required. Forum friends are requested to help me to get it.
Simplified Method for Consolidation Rate of Stone Column Reinforced Foundations
J. Geotech. Geoenviron. Eng. 127, 597 (2001); doi:10.1061/(ASCE)1090-0241(2001)127:7(597) (7 pages)
Jie Han1 and Shu-Lin Ye2,3
“Analysis of rigid rafts supported by granular piles.” Int. J. Numer. Analyt. Meth. Geomech.,54, 379–403 (1981).
Balaam, N. P., and Booker, J. R.
Consolidation Settlement of Rafts Supported by Stone Columns.
Ground Engineering Journal.
Poorooshasb H. B. and Meyerhof G. G. (1993)
AutoCAD P & ID - a program for creating and editing diagrams piping and instrumentation, as well as to control them. Based on the latest version of AutoCAD software AutoCAD PID - it's easy to use CAD with the familiar user interface designers and engineers. Familiar commands and interface make it start working in a familiar environment, without requiring long training.
AutoCAD PID optimizes and automates routine operations planning. Easy to use reporting, editing, monitoring, and data transfer - a sound basis for the implementation of projects on time and at less cost.
Key: 448D1
Serial number: 111-11111111 (or whatever)
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IMPORTANT NOTICE: You may use this software for evaluation purposes only.
If you like it, it is strongly suggested you buy it to support the developers.
By any means you may not use this software to make money or use it for commercial purpose.
Posted by: trynean - 08-18-2011, 01:33 AM - Forum: Archive
- No Replies
Hello friends,
I would like to request any papers about Non petroleum binder or bio binder for pavement because now i want to do research about it. does anyone here have some papers/journals that u would like to share to me?
Author: David J. Ewins, Singiresu S. Rao, Simon G. Braun | Size: 19,8 MB | Format:PDF | Publisher: Academic Press | Year: 2001-06-15 | pages: 1500 | ISBN: 0122270851
The Encyclopedia of Vibration is the first resource to cover this field so comprehensively. Approximately 190 articles cover everything from basic vibration theory to ultrasonics, from both fundamental and applied standpoints. Areas covered include vibrations in machines, buildings and other structures, vehicles, ships, and aircraft, as well as human response to vibration.
Each article provides a concise and authoritative introduction to a topic. The Encyclopedia includes essential facts, background information, and techniques for modeling, analysis, design, testing, and control of vibration. It is highlighted with numerous illustrations and is structured to provide easy access to required information.
Key Features
* Covers the entire field of vibration with 168 original articles written by leading international authorities
* Presents concise overviews of key topics relating to mechanical, civil, aeronautical, and electrical engineering
* Provides easy access to information through extensive cross-referencing, detailed subject index in each volume, and further reading lists in each article
* Features hundreds of detailed figures and equations, plus color plate sections in each volume
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Crystal Plasticity Finite Element Methods
in Materials Science and Engineering
Author: Franz Roters, Philip Eisenlohr, Thomas R. Bieler, Dierk Raabe | Size: 4.14 MB | Format:PDF | Year: 2010 | pages: 209
In the last 20 years, the Crystal Plasticity Finite Element Method (CPFEM) has developed into an extremely versatile tool for describing the mechanical response of crystalline materials on all length scales from single crystals to engineering parts. While this is clearly reflected by an ever increasing number of publications in scientific journals, to date there is no comprehensive monograph on the topic. To change this situation the authors have brought together their experience with CPFEM into the current book. The aim of the book is to give an overview of the wide field of models and applications in CPFEM at both small and large scales, and to give some practical advice to beginners.
The book is organized as follows: The introduction gives a comprehensive overview over the development of the application of CPFEM in the last 20 years. The first part gives an introduction into the fundamentals on which the Crystal Plasticity Finite Element Method is built. As it works in the interface of material physics, continuum mechanics and applied computer science the reader finds one chapter on each of these aspects. In the second part the Crystal Plasticity Finite Element Method is introduced in detail. First, different single crystal constitutive models are presented, including deformation mechanisms such as dislocation slip, twinning, athermal transformations, and damage. Second, in view of large scale applications, different homogenization schemes for the transition from single to polycrystals are introduced. Finally, some numerical aspects of importance for the practical implementation of CP as a material model in FEM codes are discussed. The last and by farmost elaborate part of the book is concerned with application examples. Naturally, most of these examples originate from the work of the authors, plus some important examples taken from the work of other groups. The aim of this part of the book is to give an overview on the numerous potential applications of CPFEM in materials simulation and closes with an outlook of the authors on future applications of the Crystal Plasticity Finite Element Method.
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i am looking for the new technical specifications about masonry blocks:
1. EN 771-1:2011 Specification for masonry units - Part 1: Clay masonry units.
2. EN 771-2:2011 Specification for masonry units - Part 2: Calcium silicate masonry units.
3. EN 771-3:2011 Specification for masonry units - Part 3: Aggregate concrete masonry units (Dense and lightweight aggregates).
4. EN 771-4:2011 Specification for masonry units - Part 4: Autoclaved aerated concrete masonry units.
5. EN 771-5:2011 Specification for masonry units - Part 5: Manufactured stone masonry units.
and
6. EN 771-6:2011 Specification for masonry units - Part 6: Natural stone masonry units.
I'll be very thankful of someone of you who have them or could find them - share them.
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