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Archive for April, 2011

Earthing Practice

by admin @ Saturday, April 30th, 2011. Tags: current carrying capacity, Earth Electrode Systems, earth grid, earth rod, Earthing system, Electrical safety, electricity substations, electrode systems, Fault current, Ground (electricity), medium voltage, Power cables
Filed under Electrical engineering

Earthing Practice TOC 1 Introduction 2 Standards and Legal Framework 2.1 Philosophy Underlying the Standards 2.2 The Legal Situation in the UK 2.3 Summary of Contents of Main Standards and Codes of Practice 2.3.1 Domestic, commercial and industrial premises 2.3.1.1 Existing 2.3.2 High and medium voltage electricity substations 2.3.2.1 Existing 2.3.2.2 Future 3 Methods of [...]

Technical and Economic Characteristics of a CO2 Transmission Pipeline Infrastructure

by admin @ Friday, April 29th, 2011. Tags: co2, CO2 transmission, construction of pipelines, economic characteristics, flow capacity, natural gas pipelines, pipeline infrastructure, pipeline system, Pressure, temperature and pressure, transmission pipeline
Filed under Chemical engineering, physics

Technical and Economic Characteristics of a CO2 Transmission Pipeline Infrastructure TOC 1  Introduction 1.1 Context, aim and organization of the report 1.2 General aspects of CO2 transport 1.2.1 Existing experience with CO2 pipelines 1.2.2 Regulations and codes 2  Technical characteristics and design of CO2 pipelines 2.1 Properties of CO2 2.2 Composition 2.3 Operating temperature and [...]

Time-History Dynamic Analysis of Concrete Hydraulic Structures

by admin @ Thursday, April 28th, 2011. Tags: arch dams, boundary model, Concrete, concrete gravity, Dam, eartquake, finite element analysis, Finite element method, fluid structure interaction, frequency response functions, gravity dams, ground motions, hydraulic structures, intake tower, model reservoir, pile foundations, Structural analysis, time histories
Filed under civil engineering

Time-History Dynamic Analysis of Concrete Hydraulic Structures TOC 1. Introduction 2. Analytical Modeling of Concrete Hydraulic Structures General Types of Concrete Hydraulic Structures Concrete Gravity Dams Concrete Arch Dams Intake-Outlet Towers U-frame and W-frame Navigation Locks Massive Concrete Lock Walls Masive Concrete Guide Walls Analytical Modeling Procedures Substructure Method Fluid-Structure Interaction Simplified Added Hydrodynamic Mass [...]

A solution method for the nonlinear ship wave resistance problem – PhD Thesis

by admin @ Wednesday, April 27th, 2011. Tags: free surface flow, nonlinear effects, numerical verification, Physical Phenomena, rapid method, solution method, uniform flow, wave amplitude, wave pattern, wave resistance
Filed under civil engineering, Mechanical engineering, physics

A solution method for the nonlinear ship wave resistance problem – PhD Thesis PhD Thesis TOC 1 Introduction 1.1 The design of a ship’s hull form 1.2 The role of wave resistance 1.3 Dawsori’s method 1.4 The development of a nonlinear method 1.5 Outline of this work 2 The wave resistance problem 2.1 Limitation of [...]

Guide to Protecting the Confidentiality of Personally Identifiable Information (PII)

by admin @ Tuesday, April 26th, 2011. Tags: Confidentiality, confidentiality safeguards, Data security, Identity management, impact levels, incident response, Personal identification, pii, Privacy, privacy impact assessments, Security, Security controls, Social issues
Filed under Computer/IT

Guide to Protecting the Confidentiality of Personally Identifiable Information (PII) by NIST TOC 1.  Introduction 1.1  Authority 1.2  Purpose and Scope 1.3  Audience 1.4  Document Structure 2.  Introduction to PII 2.1  Identifying PII 2.2  Examples of PII Data 2.3  PII and Fair Information Practices 3.  PII Confidentiality Impact Levels 3.1  Impact Level Definitions 3.2  Factors [...]

An Investigation of Resistance Welding Performance of Advanced High-Strength Steels

by admin @ Thursday, April 21st, 2011. Tags: auto body, electrode, EQUIPMENT, fatigue, high strength steels, resistance welding, schematic drawing, TIG
Filed under Mechanical engineering

An Investigation of Resistance Welding Performance of Advanced High-Strength Steels TOC Project Problem Statement Project Objectives Standard terms and definitions Project Summary Background Equipment Characterization Weld Gun Characterization Sample Design Effect of Sample width on impact Effect of sample width on Tensile Shear Effect of sample width on Fatigue Weld Tests for Effects of Procedures [...]

Communication Network Analysis Notes

by admin @ Wednesday, April 20th, 2011. Tags: 7 Graph Algorithms, COMMUNICATION, communication network analysis, Data Stream, delay analysis, markov processes, multitype network, poisson processes, Random Access, stability criteria, statistical averages, stochastic network, Switched Networks
Filed under Computer/IT, Electrical engineering

Communication Network Analysis Notes by Bruce Hajek TOC 1 Countable State Markov Processes 1.1 Example of a Markov model 1.2 Definition, Notation and Properties 1.3 Pure-Jump, Time-Homogeneous Markov Processes 1.4 Space-Time Structure 1.5 Poisson Processes 1.6 Renewal Theory 1.7 Classification and Convergence of Discrete State Markov Processes 1.8 Classification of Birth-Death Processes 1.9 Time Averages [...]

Solid-State Lighting: An Integrated Human Factors, Technology and Economic Perspective

by admin @ Sunday, April 17th, 2011. Tags: ELECTRICITY, human visual system, LED lamp, LIGHT, Lighting, phosphor, solid state, spectral efficiency, SSL, traditional lighting
Filed under Control and instrumentation, Electrical engineering, physics

Solid-State Lighting: An Integrated Human Factors, Technology and Economic Perspective CONTENTS I. INTRODUCTION II. HUMAN FACTORS: PERFECT RYGB SSL A. Kmax versus Ra B. Kmax versus CCT C. Spectral Efficiency: eS III. TECHNOLOGY: MID-2009 SSL LAMP A. Blue LED Pump: eB B. Phosphor+Package: eP C. Spectral Match to Human Visual System: eS D. Cumulative White Lamp Efficiency: eL IV. TECHNOLOGY: POTENTIAL-FUTURE SSL LIGHTING A. RBGBB: [...]

Highways in the Coastal Environment

by admin @ Sunday, April 17th, 2011. Tags: Coastal, Coastal engineering, Coastal erosion, coastal geomorphology, coastal highways, coastal sediment processes, Environment, properties of waves, roads and bridges, tidal inlets, water level fluctuations
Filed under civil engineering

Highways in the Coastal Environment File : pdf, 4 MB, 250 pages TOC Part 1 – Background & Context Chapter 1 – Introduction Chapter 2 – Coastal Highways 2.1 What are Coastal Highways? 2.2 Estimating the Extent of Coastal Roads and Bridges 2.3 Societal Demand for Coastal Highways 2.4 Natural Coastal Processes Impacting Highways 2.4.1 [...]

Culvert Inspection Manual

by admin @ Sunday, April 17th, 2011. Tags: Bridges, concrete culvert, hydraulics, masonry culverts, metal culverts, pipe culverts, precast concrete pipe, waterways
Filed under civil engineering

Culvert Inspection Manual Year : 1987 TOC General Issues 1. Need for Culvert Inspection 2. Objectives, Audience, and Organization of the Manual The Inspector 1. Duties, Qualifications, and Equipment 2. Safety Culvert Structures 1. Culvert Types 2. Hydraulics of Culverts 3. Structural Characteristics of Culverts 4. Durability Culvert Inspection Procedures 1. Introduction 2. Reporting 3. [...]

High Performance Steel Designers’ Guide

by admin @ Saturday, April 16th, 2011. Tags: aws code, box girder, designers guide, fracture properties, high performance steel, material properties, mechanical properties, Welding
Filed under civil engineering, Mechanical engineering

High Performance Steel Designers’ Guide U.S. Department of Transportation 1.0 INTRODUCTION 2.0 MATERIAL PROPERTIES 2.1 Chemical Property 2.2 Mechanical Properties 2.3 Fatigue and Fracture Properties 2.4 Weldability 2.4.1 AASHTO HPS Guide and AWS Code 2.4.2 Lessons Learned 2.5 Weathering Characteristic 3.0 DESIGN FEATURES 3.1 HPS Design Experience 3.1.1 First HPS 70W Bridge 3.1.2 The Nebraska [...]

Energy Savings Potential of Solid State Lighting in General Lighting Applications

by admin @ Saturday, April 16th, 2011. Tags: Display technology, efficacy, ELECTRICITY, energy savings, general lighting, lighting applications, lighting technology, lumen, solid state lighting, SSL
Filed under Electrical engineering

Energy Savings Potential of Solid State Lighting in General Lighting Applications TOC 1 INTRODUCTION 2 FORECASTING THE LUMEN DEMAND 2.1 DRAFT PHASE I INVENTORY 2.2 LIGHTING GROWTH PROJECTION AND AVAILABLE MARKET 3 DEVELOPMENTS IN LIGHTING TECHNOLOGY 3.1 CONVENTIONAL TECHNOLOGY IMPROVEMENTS 3.2 SOLID STATE LIGHTING TECHNOLOGY IMPROVEMENTS 4 MARKET PENETRATION 4.1 PRICE BINS 4.2 PAYBACK PERIOD [...]

Dynamic Analysis of Sounding Rocket Pneumatic System

by admin @ Saturday, April 16th, 2011. Tags: bezier curve, computational fluid dynamics, Dynamic Analysis, Fluid Dynamics, mathematical model, Pneumatics, Rocket, sounding rocket
Filed under Mechanical Science, physics

Dynamic Analysis of Sounding Rocket Pneumatic System Contents 1. Abstract 2. Introduction 3. Pneumatic schematic of sounding rocket 4. Mathematical model of the Pneumatic system 5. Empirical data of the pneumatic system of sounding rocket 6. Computational Fluid Dynamics Approach 7. The Bezier Curve Smoothing Technique 8. Flow through segment 1 9. Flow through segment [...]

Roadway Lighting Design Manual

by admin @ Friday, April 15th, 2011. Tags: electrical system, Light fixture, Lighting, lighting design, lighting equipment, lighting system, roadway lighting, roadways, traffic engineering
Filed under Electrical engineering

Roadway Lighting Design Manual Minnesota Department of Transportation TOC 1. LIGHTING BASICS 1.1 Definition of Terms 1.2 Purpose of Roadway Lighting 1.2.1 Traffic Engineering Objectives 1.2.2 Other Objectives 1.3 Visibility of Objects 1.4 Types of Lighting System Configurations 1.4.1 Continuous Freeway Lighting 1.4.2 Partial Interchange Lighting 1.4.3 Complete Interchange Lighting 1.4.4 Underpass Lighting 1.4.5 Other [...]

Handbook of Thermal Design Data for Multilayer Insulation Systems

by admin @ Friday, April 15th, 2011. Tags: composites, cryogenic liquids, density of metals, Heat transfer, insulation system, insulation systems, insulations, Insulators, multilayer insulation
Filed under Mechanical engineering, physics

Handbook of Thermal Design Data for Multilayer Insulation Systems TOC INTRODUCTION 1 GASES 2 METALS 3 FIBERGLASS LAMINATES 4 MULTILAYER INSULATIONS 4.0 Introduction 4.1 Substrates 4.2 Multilayer-Insulation-System Materials 4.3 Multilayer Composites 4.4 Attachment Methods 4.5 Experimental Methods Figures Tables 1-1 Physical Properties of Cryogenic Liquids 2-1 Density of Metals 3-1 Characteristics of Fiberglass Laminates 4.2-1 [...]

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