1,239 research outputs found
PTFE/Rubber Hybrid Bearings for Dry-Start Vertical Pumps
Case StudyOutline: •Problem statement
•Compressor service overview
•Description of sealing system
•Problem description
•Troubleshooting
•Findings
•Remedial Actions
•Result
•Q &
Parametric Instability of Helical Oscillations with External Signals in a Positive Column
ArticleJournal of the Faculty of Textile Science and Technology, Shinshu University. Ser. F, Physics and mathematics 8: 1-10(1990)departmental bulletin pape
Robust stabilization of running self-sustaining two-wheeled vehicle
金沢大学理工研究域電子情報学系This paper deals with robust stabilization of running self-sustaining two-wheeled vehicle. Recently, some researches about stabilization of two-wheeled vehicle have been reported. These researches have achieved the stabilization running only by the steering control. However, an actual two-wheeled vehicle is running while accompanying stabilization by the rider. We have proposed the stabilization of two-wheeled vehicle in the state of stillness, and have shown the effectiveness. In this research, we compose the control system that aims at the running stabilization of two-wheeled vehicle. We use ℋ∞ mixed sensitivity problem to design the controller to achieve stability running even if the mass of two-wheeled vehicle changes. The experimental results show stability running even if the mass of two-wheeled vehicle changed. © 2007 IEEE
Quantum network coding for quantum repeaters
This paper considers quantum network coding, which is a recent technique that
enables quantum information to be sent on complex networks at higher rates than
by using straightforward routing strategies. Kobayashi et al. have recently
showed the potential of this technique by demonstrating how any classical
network coding protocol gives rise to a quantum network coding protocol. They
nevertheless primarily focused on an abstract model, in which quantum resource
such as quantum registers can be freely introduced at each node. In this work,
we present a protocol for quantum network coding under weaker (and more
practical) assumptions: our new protocol works even for quantum networks where
adjacent nodes initially share one EPR-pair but cannot add any quantum
registers or send any quantum information. A typically example of networks
satisfying this assumption is {\emph{quantum repeater networks}}, which are
promising candidates for the implementation of large scale quantum networks.
Our results thus show, for the first time, that quantum network coding
techniques can increase the transmission rate in such quantum networks as well.Comment: 9 pages, 11figure
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