Based on the European Welding Engineer (EWF) syllabus Part 3 Construction and Design, this book provides a clear, highly illustrated and concise explanation of how welded joints and structures are designed and of the constraints which welding may impose on the design. It is therefore of value both to the welding engineer and the design engineer Many engineers coming into the profession of welding engineering lack a background in design and construction of welded structures and plant. This book has been written with such engineers very much in mind. The safe performance of a structure relies on materials and methods of fabrication which can respond to the explicit or implicit design requirements. It is essential that the welding engineer has the opportunity of making his specialist input to the design process, and an understanding of the basis of the design will help that contribution to be most effective. It is also important that the practising design engineer acquires a basic knowledge of the relevant aspects of welding to be able to execute satisfactory designs and, equally important, to know when to seek the input of a qualified welding engineer. Designed for both students and practising engineers in welding and design, the book will also be of great value to civil, structural, mechanical and plant engineers. There is also much that will interest test houses, welding equipment and consumable manufacturers, classification societies and steel companies.
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Orthogonal Functions, Moment Theory, and Continued Fractions
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William Jones, A. Sri Ranga
CRC | 1998 | ISBN: 0824702077 | Pages: 438 | DJVU | 3.27 MB
This valuable collection of articles outlines an array of recent work on the analytic theory and potential applications of continued
fractions, linear functionals, orthogonal functions, moment theory, and integral transforms.
Describes links between continued fractions, Pad approximation, special functions, and Gaussian quadrature!
Featuring the insights of nearly 30 contributors, Orthogonal Functions, Moment Theory, and Continued Fractions analyzes the asymptotic
behavior of continued fraction coefficients for the Binet and gamma functions details new results on orthogonal Laurent polynomials
computes special functions in the complex domain using continued fractions uses the Freud conjecture to analyze the coefficients of
Stieltjes continued fractions for the first time profiles new results using Szego polynomials and their application to frequency analysis
develops new results on strong moment theory and orthogonal rational functions using finite Blschke products proves that a two-
parameter subfamily can subsume a four-parameter family of twin-convergence regions for continued fractions and more!
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Yuri A. Kuznetsov - Elements of Applied Bifurcation Theory
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Springer-Verlag | 1998 | ISBN: 0387983821 | Pages: 591 | PDF | 4.09 MB
This is a book on nonlinear dynamical systems and their bifurcations under parameter variation. It provides a reader with a solid basis in dynamical systems theory, as well as explicit procedures for application of general mathematical results to particular problems. Special attention is given to efficient numerical implementations of the developed techniques. Several examples from recent research papers are used as illustrations. The book is designed for advanced undergraduate or graduate students in applied mathematics, as well as for Ph.D. students and researchers in physics, biology, engineering, and economics who use dynamical systems as model tools in their studies. A moderate mathematical background is assumed, and, whenever possible, only elementary mathematical tools are used.
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Differential geometry, in the classical sense, is developed through the theory of smooth manifolds. Modern differential geometry from the author's perspective is used in this work to describe physical theories of a geometric character without using any notion of calculus (smoothness). Instead, an axiomatic treatment of differential geometry is presented via sheaf theory (geometry) and sheaf cohomology (analysis). Using vector sheaves, in place of bundles, based on arbitrary topological spaces, this unique approach in general furthers new perspectives and calculations that generate unexpected potential applications. "Modern Differential Geometry in Gauge Theories" is a two-volume research monograph that systematically applies a sheaf-theoretic approach to such physical theories as gauge theory. Beginning with Volume 1, the focus is on Maxwell fields. Continuing in Volume 2, this sheaf-theoretic approach is applied to Yang-Mills fields in general.The text contains a wealth of detailed and rigorous computations and will appeal to mathematicians and physicists, along with advanced undergraduate and graduate students, interested in applications of differential geometry to physical theories such as general relativity, elementary particle physics and quantum gravity.
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Groundwater Hydrology: Conceptual and Computational Models
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K. R. Rushton - Groundwater Hydrology: Conceptual and Computational Models
Wiley | 2003 | ISBN: 0470850043 | Pages: 430 | PDF | 5.60 MB
Groundwater is a vital source of water throughout the world. As the number of groundwater investigations increase, it is important to understand how to develop comprehensive quantified conceptual models and appreciate the basis of analytical solutions or numerical methods of modelling groundwater flow.
Groundwater Hydrology: Conceptual and Computational Models describes advances in both conceptual and numerical modelling. It gives insights into the interpretation of field information, the development of conceptual models, the use of computational models based on analytical and numerical techniques, the assessment of the adequacy of models, and the use of computational models for predictive purposes. It focuses on the study of groundwater flow problems and a thorough analysis of real practical field case studies.
It is divided into three parts:
* Part I deals with the basic principles, including a summary of mathematical descriptions of groundwater flow, recharge estimation using soil moisture balance techniques, and extensive studies of groundwater-surface water interactions.
* Part II focuses on the concepts and methods of analysis for radial flow to boreholes including topics such as large diameter wells, multi-layered aquifer systems, aquitard storage and the prediction of long-term yield.
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Volume 6, Issue 1
Read the magazine Featured Articles
Bentley Launches the Most Comprehensive Software Portfolio for Infrastructure Ever Assembled in a Single Release
Encompassing products for all of the solution communities served by Bentley, the V8i portfolio leverages and extends core capabilities of its new interoperability platform to provide the breadth and depth of technology needed for fully integrated project delivery.
MicroStation V8i Up Close & Personal
Bentley’s billion-dollar investment culminates in a MicroStation V8i release that delivers the features most requested by its software users.
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Vibrations and Waves
(Manchester Physics Series)
George King,
Wiley 2009
ISBN-10: 0470011882
242 Pages
PDF 1,4 MB
Product Description
This introductory text emphasises physical principles, rather than the mathematics. Each topic begins with a discussion of the physical characteristics of the motion or system. The mathematics is kept as clear as possible, and includes elegant mathematical descriptions where possible. Designed to provide a logical development of the subject, the book is divided into two sections, vibrations followed by waves. A particular feature is the inclusion of many examples, frequently drawn from everyday life, along with more cutting-edge ones. Each chapter includes problems ranging in difficulty from simple to challenging and includes hints for solving problems. Numerous worked examples included throughout the book.
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Here is simple routine to recover password for worksheet (not the file password) and unprotect worksheets
-----------------------------------cut below this line------
Sub PasswordBreaker()
'Author unknown
'Breaks worksheet password protection.
Dim i As Integer, j As Integer, k As Integer
Dim l As Integer, m As Integer, n As Integer
Dim i1 As Integer, i2 As Integer, i3 As Integer
Dim i4 As Integer, i5 As Integer, i6 As Integer
On Error Resume Next
For i = 65 To 66: For j = 65 To 66: For k = 65 To 66
For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66
For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66
For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126
ActiveSheet.Unprotect Chr(i) & Chr(j) & Chr(k) & _
Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _
Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
If ActiveSheet.ProtectContents = False Then
MsgBox "One usable password is " & Chr(i) & Chr(j) & _
Chr(k) & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _
Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
Exit Sub
End If
Next: Next: Next: Next: Next: Next
Next: Next: Next: Next: Next: Next
End Sub
-----------------cut above this line-----------------
Procedure:
start excel
open the excel file you need to unprotect
Start Visual Basic Editor: Tools -> Macro menu -> Visual Basic Editor
Create a new module : Insert -> module
Paste the above code in the module
Close Visual Basic Editor
Run the Macro named "PasswordBreaker" from Tools -> Macro menu
This will give you a password that you can use to unprotect a worksheet
If you have multiple worksheets, you need to run the macro in each worksheet.
![[Image: h24jq8unt4wvjgozdnnz.jpg]](https://pic.civilea.com/images/h24jq8unt4wvjgozdnnz.jpg)
![[Image: elgu6ae4qu9hpzh5vxm.jpg]](https://pic.civilea.com/images/elgu6ae4qu9hpzh5vxm.jpg)
![[Image: 08otfdhgpl8gtympd5w9.jpg]](https://pic.civilea.com/images/08otfdhgpl8gtympd5w9.jpg)
![[Image: dj909qqtx9onkepv4zl.jpg]](https://pic.civilea.com/images/dj909qqtx9onkepv4zl.jpg)
![[Image: odssunny4km63hfwdp.jpeg]](https://pic.civilea.com/images/odssunny4km63hfwdp.jpeg)
![[Image: yz111yr3jer21gcmgjlk.jpg]](https://pic.civilea.com/images/yz111yr3jer21gcmgjlk.jpg)
![[Image: 20272851413118400952.jpg]](https://pic.civilea.com/images/20272851413118400952.jpg)