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Archive for April, 2009

Theoretical Geomechanics

by @ Thursday, April 23rd, 2009. Filed under Mechanical engineering, geophysics

File : pdf, 700 KB
CONTENTS
INTRODUCTION
Chapter A: BASIC ELEMENTS
A.1) The displacement vector. Lagrangean (material) and Eulerian (spatial) co-ordinates
A.2) Invariants of a tensor. Tensor deviator
A.3) Strain tensor. Stress tensor. Equation of motion / equilibrium
A.4) HOOKE’s law.
Chapter B: DEFORMATION OF A CYLINDRICAL BODY IN THE PRESENCE OF GRAVITY
B.1) The model
B.2) Equations of equilibrium. Boundary conditions. Simplifying hypothesis
B.3) The [...]

Design, Construction, and Maintenance of Relief Wells

by @ Sunday, April 19th, 2009. Filed under civil engineering, geology

File : pdf, 1.1 MB, 92 pages
TOC
Chapter 1 Introduction
Purpose
Objective and Scope
Applicability
References
General Consideration
Chapter 2 Relief Well Applications
Description
Use of Wells
History of Use
Other Applications
Chapter 3 Basic Considerations
Foundation Investigations
Foundation Permeability
Anisotropic Conditions
Chemical Composition of Ground Waters
Seepage Analysis
Allowable Heads
Chapter 4 Analysis of Single Wells
Assumptions
Circular Source
Noncircular Source
Infinite Line Source
Finite Line Source
Infinite Line Source and Infinite Line Sink
Infinite Line Sink and Infinite Barrier
Complex [...]

Design and Construction of Leeves

by @ Saturday, April 18th, 2009. Filed under civil engineering

File : pdf, 5.4 MB, 164 pages
TOC
Chapter 1 Introduction
Purpose
Applicability
References
Objective
General Considerations
Chapter 2 Field Investigations
Preliminary and Final Stage
Section I
Geological Study
Section II
Subsurface Exploration
Section III
Field Testing
Preliminary Strength Estimates
Vane Shear Tests
Groundwater and Pore Pressure Observations
Field Pumping Tests
Chapter 3 Laboratory Testing
General 1
Classification and Water Content Determinations
Section I
Fine-Grained Soils
Use of Correlations
Shear Strength
Consolidation
Permeability
Compaction Tests
Section II
Coarse-Grained Soils
Shear Strength
Permeability
Density Testing of Pervious Fill
Chapter 4 Borrow [...]

Fundamentals of Wireless Communication

by @ Wednesday, April 15th, 2009. Filed under Computer/IT, Control and instrumentation, Electrical engineering

1. Introduction
2. The wireless channel
3. Point-to-point communication: detection, diversity and channel uncertainty
4. Cellular systems: multiple access and interference management
5. Capacity of wireless channels
6. Multiuser capacity and opportunistic communication
7. MIMO I: spatial multiplexing and channel modeling
8. MIMO II: capacity and multiplexing architectures
9. MIMO III: diversity-multiplexing tradeoff and universal space-time codes
10. MIMO IV: multiuser communication
11. Appendix A: [...]

A Guide to Geothermal Energy and The Environment

by @ Monday, April 13th, 2009. Filed under geology, geophysics

File : pdf, 1 MB, 86 pages
TOC
Introduction and Background
I. Introduction
Geothermal Myths Explained
Myth 1: Geothermal Energy is Experimental and Not Yet Widely Used
II. Converting Geothermal Energy into Electricity
III. Geothermal Plants and Cooling Systems
IV. Reliability of Geothermal Power Generation
V. Percentage of Domestic Geothermal Power Production
Myth 2: Geothermal Resources are Nonrenewable
VI. Managing Geothermal Systems
VII. Geothermal Potential
Geothermal Energy and [...]

Maintenance and Operation of Active Solar Heating Systems

by @ Thursday, April 9th, 2009. Filed under Electrical engineering, physics

File : pdf, 5 MB,
TOC
1. Introduction
1.1 Purpose of this Manual
1.2 Scope of this Manual
1.3 How to Use this Manual
1.3.1 Review of Manual Structure
1.3.2 Worksheets
1.3.3 Self-study Questions
1.3.4 Appendices
1.3.5 Notes, Cautions and Warnings
1.3.6 Chapter and Page Format
2. Operation
2.1 Basic System Configuration
2.1.1 Definition of Loops
2.1.2 Common Components
2.1.3 Common Load Connections
2.2 Basic Configuration of Closed-Loop Systems
2.3 Basic Configuration of [...]

Test Method Standard Electronic And Electrical Component Parts

by @ Tuesday, April 7th, 2009. Filed under Electrical engineering

File : pdf, 1.1 MB, 207 pages
by US Dept of Defense
CONTENTS
ENVIRONMENTAL TEST
Salt Atmosphere (Corrosion)
Humidity (Steady State)
Immersion
Barometric Pressure (Reduced)
Moisture Resistance
Life (At Elevated Ambient Temperature)
Explosion
Sand And Dust
Flammability (External Flame)
Seal
PHYSICAL-CHARACTERISTICS TESTS
Vibration
Random Drop
Vibration, High Frequency
Life (Rotational)
High-Impact Shock
Solderability
Radiographic Inspection
Resistance To Soldering Heat
Terminal Strength
Acceleration
Shock (Specified Pulse)
Random Vibration
Resistance To Solder Wave Heat
Particle Impact Noise Detection (Pind)
ELECTRICAL-CHARACTERISTICS TESTS
Dielectric Withstanding Voltage
Insulation Resistance
Dc Resistance
Resistance-Temperature Characteristic
Capacitance
Quality [...]

Pavement Maintenance Management

by @ Friday, April 3rd, 2009. Filed under civil engineering

File : pdf, 11 MB, 174 pages
TOC
1. INTRODUCTION
Purpose
Applicability
Scope
Implementation of PAVER
PAVER forms
2. PAVEMENT NETWORK IDENTIFICATION
Introduction
Definitions
Guidelines for pavement identification
3. PAVEMENT CONDITION SURVEY AND RATING PROCEDURES
Introduction
Pavement condition rating
Pavement inspection
Inspection by sampling
Calculating the PCI from inspection results
4. MAINTENANCE AND REPAIR (M&R) GUIDELINES
Introduction
Pavement evaluation procedure
Determination of feasible M&R alternative
Establishing M&R priorities
5. PROCEDURE FOR PERFORMING ECONOMIC ANALYSIS OF M&R ALTERNATIVES
Introduction
The procedure
Computations
6. [...]

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