Hiển thị các bài đăng có nhãn dependable. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn dependable. Hiển thị tất cả bài đăng

Thứ Tư, 11 tháng 2, 2015

Wheels Stop

Wheels Stop



Humanitys first reusable spacecraft and the most complex machine ever built, NASAs Space Shuttle debuted with great promise and as a dependable source of wonder and national pride. But with the Challenger catastrophe in 1986, the whole Space Shuttle program came into question, as did NASA itself, so long an institution that was seemingly above reproach. Wheels Stop tells the stirring story of how, after the Challenger disaster, the Space Shuttle not only recovered but went on to perform its greatest missions. From the Return to Flight mission of STS-26 in 1988 to the last shuttle mission ever on STS-135 in 2011, Wheels Stop takes readers behind the scenes as the shuttles crews begin to mend Cold War tensions with the former Soviet Union, conduct vital research, deploy satellites, repair the Hubble Space Telescope, and assist in constructing the International Space Station. It also tells the heart-wrenching story of the Columbia tragedy and the loss of the magnificent STS-107 crew.




Thứ Năm, 5 tháng 2, 2015

Integrating Renewable, Distributed and Efficient Energy

Integrating Renewable, Distributed and Efficient Energy



The creation of a flexible, efficient, digitized, dependable and resilient power grid may well be the best route to increasing energy efficiency & security, as well as boosting the potential of renewable & distributed power sources. However, there is still much confusion about the nature of the Smart Grid: What is it? What work needs to be accomplished in order to make it a reality? How will it benefit the drive to diversify energy resources? This book covers Smart Grids from A-Z, providing a complete treatment of the topic, covering both policy and technology, explaining the most recent innovations supporting its development, and clarifying how the Smart Grid can support the integration of Renewable Energy resources. Among the most important topics included are smart metering, renewable energy storage, plug-in hybrids, flexible demand response, strategies for offsetting intermittency issues, micro-grids for off-grid communities, and specific in-depth coverage of wind and solar power integration. The content draws lessons from an international panel of contributors, whose diverse experiences implementing smart grids will help to provide templates for success. If we intend to undertake a meaningful overhaul of the way the world uses energy resources, we ignore grid management issues at our peril. Ultimately, this important book examines what the integration challenges are, what technology and policy needs to be in place in order to support uptake, and what The Smart Grid can do to enable solutions. Provides critical information on the technological, design and policy issues that must be taken into account to ensure that the smart grid is implemented successfully Demonstrates how smart grids can help utilities adhere to increased renewable portfolio standards Provides examples of successful microgrid/smart metering projects from around the world that can act as templates for developers, operators and investors embarking upon similar projects.




Thứ Hai, 26 tháng 1, 2015

The Human Hand as an Inspiration for Robot Hand Development

The Human Hand as an Inspiration for Robot Hand Development



The Human Hand as an Inspiration for Robot Hand Development presents an edited collection of authoritative contributions in the area of robot hands. The results described in the volume are expected to lead to more robust, dependable, and inexpensive distributed systems such as those endowed with complex and advanced sensing, actuation, computation, and communication capabilities. The twenty-four chapters discuss the field of robotic grasping and manipulation viewed in light of the human hands capabilities and push the state-of-the-art in robot hand design and control. Topics discussed include human hand biomechanics, neural control, sensory feedback and perception, and robotic grasp and manipulation. This book will be useful for researchers from diverse areas such as robotics, biomechanics, neuroscience, and anthropologists.