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  Metal Mining and the Environment
Posted by: ranger - 03-23-2012, 03:24 PM - Forum: Environmental Engineering - Replies (1)


Metal Mining and the Environment

Author: T. L. Hudson, F. D. Fox, G. S. Plumlee | Size: 1.4 MB | Format: PDF | Quality: Unspecified | Publisher: American Geological Institute | Year: 1999 | pages: 68 | ISBN: 9780922152513

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The booklet offers new tools for raising awareness and understanding of the impact and issues surrounding metal mining and the environment. It can help you: illustrate the importance of our natural and environmental resources; provide a geoscience perspective on metal mining and the environment; improve Earth science literacy; and increase student understandings of Earth resources and systems.

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  Tests for geometrical properties of aggregates - BS EN 933-parts 1 and 8:2012
Posted by: ir_71 - 03-23-2012, 03:22 PM - Forum: Archive - Replies (8)

Dear friends,

there are new editions of two standards concerning testing of aggregates, which I am looking for:

1. BS EN 933-1:2012 Tests for geometrical properties of aggregates. Determination of particle size distribution. Sieving method

2. BS EN 933-8:2012 Tests for geometrical properties of aggregates. Assessment of fines. Sand equivalent test

I'll be very thankful if someone who already have them or could find them - share them with me.
Thanks in advance.
IR

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  Environmental Fluid Mechanics 1: Mixing and Transport Processes in the Environment
Posted by: ranger - 03-23-2012, 03:17 PM - Forum: Environmental Engineering - No Replies


Environmental Fluid Mechanics 1: Mixing and Transport Processes in the Environment

Author: Scott A. Socolofsky, Gerhard H. Jirka | Size: 1.4 MB | Format: PDF | Quality: Unspecified | Publisher: Texas A&M University | Year: 2005 | pages: 184

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In this book passive diffusion is treated by introducing the transport equation and its application in a range of unstratified water bodies. Passive diffusion refers to mixing processes that occur due to random motions and that have no direct feedback on the dynamics of the fluid motion.

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  Water Measurement Manual
Posted by: ranger - 03-23-2012, 03:06 PM - Forum: Environmental Engineering - No Replies


Water Measurement Manual

Size: 3.3 MB | Format: PDF | Quality: Unspecified | Publisher: Reclamation Bureau | Year: 2001 | pages: 317 | ISBN: 9780160617638

[Image: 11961857162998497547.jpg]


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The mission of many public and private water resources organizations is to manage and conserve existing water supplies. These management efforts involve making sound technical and economic decisions concerning new and existing water needs, while respecting the environment by sustaining or restoring the aquatic ecosystems which may be affected.

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  Calculus
Posted by: ranger - 03-23-2012, 02:51 PM - Forum: Mathematics (Engineering and Scientific) - No Replies


Calculus

Author: Wikibooks | Size: 6 MB | Format: PDF | Quality: Unspecified | Year: 2011 | pages: 456

[Image: 46120620571763265844.jpg]


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This wikibook aims to be a quality calculus textbook through which users may master the discipline. Standard topics such as limits, differentiation and integration are covered as well as sequences and series, multivariable and differential calculus.

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  Linearization via the Lie Derivative
Posted by: ranger - 03-23-2012, 02:34 PM - Forum: Mathematics (Engineering and Scientific) - No Replies


Linearization via the Lie Derivative

Author: Carmen Chicone, Richard Swanson | Size: 420 KB | Format: PDF | Quality: Unspecified | Publisher: American Mathematical Society | Year: 2000 | pages: 64

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The standard proof of the Grobman--Hartman linearization theorem for a flow at a hyperbolic rest point proceeds by first establishing the analogous result for hyperbolic fixed points of local diffeomorphisms. In this exposition we present a simple direct proof that avoids the discrete case altogether.

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  On the Study and Difficulties of Mathematics
Posted by: ranger - 03-23-2012, 02:27 PM - Forum: Mathematics (Engineering and Scientific) - Replies (2)


On the Study and Difficulties of Mathematics

Author: Augustus De Morgan | Size: 1.4 MB | Format: PDF | Quality: Unspecified | Publisher: The Open Court Publishing | Year: 1910 | pages: 318 | ISBN: 1241253889

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In compiling the following pages, object has been to notice particularly several points in the principles of algebra and geometry, which have not obtained their due importance in our elementary works on these sciences.

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  Lectures on Topics in Algebraic K-Theory
Posted by: ranger - 03-23-2012, 02:20 PM - Forum: Mathematics (Engineering and Scientific) - No Replies


Lectures on Topics in Algebraic K-Theory

Author: Hyman Bass | Size: 670 KB | Format: PDF | Quality: Unspecified | Publisher: Tata Institute of Fundamental Research | Year: 1967 | pages: 138 | ISBN: B007FHCOYG

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Topics: The exact sequence of algebraic K-theory; Categories of modules and their equivalences; The Brauer group of a commutative ring; The Brauer-Wall group of graded Azumaya algebras; The structure of the Clifford Functor.

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  Composite beam EC4
Posted by: tommy999 - 03-23-2012, 12:49 PM - Forum: Request for Civil Engineering Documents - Replies (1)

hello, I'm looking spreadsheets for composite beam/slab design according to EC4. Thank you


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  BS EN 14731:2005 Execution of special geotechnical works - Ground treatment by deep v
Posted by: ir_71 - 03-23-2012, 12:47 PM - Forum: British Standards (BS) - Replies (1)


BS EN 14731:2005 Execution of special geotechnical works - Ground treatment by deep vibration

Author: Technical Committee CEN/TC 288 | Size: 0.3 MB | Format: PDF | Quality: Original preprint | Publisher: CEN | Year: 2005 | pages: 25

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This European Standard is applicable to the planning, execution, testing and monitoring of ground treatment by deep vibration achieved by depth vibrators and compaction probes.
The following types of treatment are covered by this European Standard:
- deep vibratory compaction to densify the existing ground;
- vibrated stone columns to form a stiffened composite ground structure by the insertion of granular material which itself shall be densified. Generally, stone columns have a diameter greater than 0,6 m and lower than 1,2 m.
The following treatment methods are covered by this European Standard:
- methods in which depth vibrators, containing oscillating weights which cause horizontal vibrations, are inserted into the ground;
- methods in which compaction probes are inserted into the ground using a vibrator which remains at the ground surface and which in most cases oscillates in a vertical mode.
Treatment methods are outlined in Annexes A and B.
The following treatment methods, among others, are not included in this European Standard:
- methods in which sand or stone columns are installed by means of impact or top vibratory driven casing;
- methods in which very stiff columns are formed either by the addition of cement to granular material or by the use of concrete or any other binder;
- dynamic compaction and other methods in which some form of treatment is applied to the ground surface;
- explosive compaction.

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