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Minimizing Losses in a Space Laser Power Beaming System

Bellows, Charlie T. / National Aeronautics And Space Administr
Minimizing Losses in a Space Laser Power Beaming System
A mathematical model is developed to track the amount of power delivered in a wireless laser power beaming system. In a wireless system the power proceeds through several different stages before being delivered to a payload for use. Each of these stages results in power losses that are thoroughly examined, allowing for the calculation of the likely amount of power delivered. Adjusting variable factors within the model allows for the optimizati...

CHF 76.00

LDV Measurements in an Annular Combustor Model

Barron, Dean A. / National Aeronautics And Space Administr
LDV Measurements in an Annular Combustor Model
This thesis covers the design and setup of a laser doppler velocimeter (LDV) system used to take velocity measurements in an annular combustor model. The annular combustor model is of contemporary design using 60 degree flat vane swirlers, producing a strong recirculation zone. Detailed measurements are taken of the swirler inlet air flow and of the downstream enclosed swirling flow. The laser system used is a two color, two component system s...

CHF 74.00

Reverse Kinematic Analysis and Uncertainty Analysis of th...

Brink, Jeffrey S. / National Aeronautics And Space Administr
Reverse Kinematic Analysis and Uncertainty Analysis of the Space Shuttle AFT Propulsion System (APS) POD Lifting Fixture
The space shuttle Aft Propulsion System (APS) pod requires precision alignment to be installed onto the orbiter deck. The Ground Support Equipment (GSE) used to perform this task cannot be manipulated along a single Cartesian axis without causing motion along the other Cartesian axes. As a result, manipulations required to achieve a desired motion are not intuitive. My study calculated the joint angles required to align the APS pod, using reve...

CHF 74.00

Towards a Low Level Accelerometer

Ezekiel, S. / National Aeronautics And Space Administr
Towards a Low Level Accelerometer
A preliminary investigation is made into a low level accelerometer incorporating a diamagnetically supported magnet inside a superconducting tube. Low level control forces are examined and the magnetic force is found most suitable. Light pressure exerts a measurable force and is suggested for calibration. The feasibility of closing a feedback loop around the magnet is demonstrated. The accelerometer shows much promise for application below 10 ...

CHF 74.00

An Analysis of Shuttle Crew Scheduling Violations

Bristol, Douglas / National Aeronautics And Space Administr
An Analysis of Shuttle Crew Scheduling Violations
From the early years of the Space Shuttle program, National Aeronautics and Space Administration (NASA) Shuttle crews have had a timeline of activities to guide them through their time on-orbit. Planners used scheduling constraints to build timelines that ensured the health and safety of the crews. If a constraint could not be met it resulted in a violation. Other agencies of the federal government also have scheduling constraints to ensure th...

CHF 76.00

The Dragon Turn

Peacock, Shane
The Dragon Turn
Sherlock Holmes and Irene Doyle are as riveted as the rest of the audience. They are celebrating Irene's sixteenth birthday at the Egyptian Hall as Alistair Hemsworth produces a real and very deadly dragon before their eyes. This single, fantastic illusion elevates the previously unheralded magician to star status, making him the talk of London. He even outshines the Wizard of Nottingham, his rival on and off the stage.Sherlock and Irene rush ...

CHF 16.50

The Feet of Darkness

David, Seyi Sandra
The Feet of Darkness
Imagine a world where the unseen rules and the seen are helplessly rooted in darkness. A world where darkness reigns with gay impunity while evil spread its tentacles unabashed. A world where darkness threatens all as powers beyond the comprehension of man threatens to eliminate all we know and holds dear. In such a world, the only game left for all is survival, except...maybe...there are some chosen people somewhere, hiding beyond the darknes...

CHF 30.90

The Melody of Motion

Cole, Carl
The Melody of Motion
Since the time of The Grateful Dead there has always been a certain percentage of the population who have found deep meaning in improvisational rock music. With the death of Jerry Garcia the torch was passed to a new generation of musicians and fans who continue this legacy through Phish and Widespread Panic. The Melody of Motion is able to do what no other book has been able to do: explain in depth why people forsake their jobs, families, and...

CHF 33.50

Liberation from Empire

Pero, Cheryl S.
Liberation from Empire
Liberation from Empire investigates the phenomenon of demonic possession and exorcism in the Gospel of Mark. The Marcan narrator writes from an anti-imperialistic point of view with allusions to, yet never directly addressing, the Roman Empire. In his baptism, Jesus was authorized by God and empowered by the Holy Spirit to wage cosmic war with Satan. In Jesus' first engagement, his testing in the wilderness, Jesus bound the strong one, Satan. ...

CHF 125.00

Rebellion

Irvine, Ian
Rebellion
THE WAR IS NOT YET LOST . . . Every year the winters worsen, and the realm's protective magic disappeared with the traitor-king, Lyf, two thousand years ago. Now Lyf is back, bent on wiping the country of Hightspall off the map and rebuilding his ancient land anew. A slave orphaned by Lyf, Tali holds the key to saving the realm - or destroying it. Can she stop him before he tears Hightspall apart, and plunges the world into perpetual darkness?...

CHF 17.90

Violent Behavior

Strickland, Lawrence F
Violent Behavior
This book provides insightful recommendations for the Department of Defense against perpetrators of "targeted violence" -- those individuals who conduct pre-meditated attacks against specific individuals, populations, or facilities. While this book focuses on predicting violent behaviour, it also discusses the most effective means of responding to the challenge of targeted violence and prevention measures, with a focus on targeted violence aff...

CHF 429.00

Voluntary Markets in Renewable Energy

Fuller, Jamir S
Voluntary Markets in Renewable Energy
This book examines 2011 trends in the U.S. "voluntary" markets - those in which consumers and institutions purchase renewable energy to match their electricity needs on a voluntary basis. This review uses available data sources to capture 2011 voluntary market trends, status and options.

CHF 269.00

Wind Turbines

Foster, Derrick A
Wind Turbines
This book reviews past U.S. exports of utility-scale wind turbine nacelles and blades, and assesses the potential for future U.S. exports of these products to markets in Canada and Latin America. These markets are growing in importance and, though they are smaller than the Chinese and European markets, are significant potential export destinations for U.S. producers. The results of this analysis indicate that U.S. exports increased annually du...

CHF 269.00

Distillation Theory and Its Application to Optimal Design...

Petlyuk, F. B.
Distillation Theory and Its Application to Optimal Design of Separation Units
Writing for designers and operators of separation units in the chemical, pharmaceutical, food, and related industries as well as software designers, F.B. Petlyuk presents a clear, multidimensional geometric representation of distillation theory valid for all types of distillation column types, splits, and mixtures. DistillDesigner software allows refinement and confirmation of the algorithms of optimal design. Methods of the general geometric ...

CHF 207.00

Whistleblower Protections

Arcelloni, Daryl R
Whistleblower Protections
Legal protection for employees who report illegal misconduct by their employers have increased dramatically since the late 1970s when such protections were first adopted for federal employees in the Civil Service Reform Act of 1978. Since that time, with the enactment of the Whistleblower Protection Act of 1989, Congress has expanded such protections for federal employees. Congress has also established whistleblower protections for individuals...

CHF 269.00

The Killing Trap

Midlarsky, Manus
The Killing Trap
The Killing Trap offers a comparative analysis of the genocides, politicides and ethnic cleansings of the twentieth century, which are estimated to have cost upwards of forty million lives. The book seeks to understand both the occurrence and magnitude of genocide, based on the conviction that such comparative analysis may contribute towards prevention of genocide in the future. Manus Midlarsky compares socio-economic circumstances and interna...

CHF 88.00