university of electro-communications

ZDNet Resources

• sort by:
• Relevance
• Date
• Popularity

Coherent Optical Frequency Transfer Via 110-Km Urban Fiber Network

Optical frequency at 1542 nm was coherently transferred over a 110-km optical fiber using an urban fiber network (JGN2) between Tsukuba and Kashiwa cities. The phase fluctuation induced by the fiber length fluctuation was actively reduced by stabilizing the fiber length using a fiber stretcher and an acousto-optic frequency shifter....

Tags: Fiber, University Of Electro-Communications, Network Technology, Networking

White papers 2008-06-10

Connection Caching for WWW Servers and Proxies

This paper proposes connection caching to reduce the overhead of accessing WWW pages. Connection caching means that a WWW server or a WWW proxy server does not release its connection with a client or a peer but retains it and uses it again after the transmission is completed. The retained...

Tags: Server, Connection, WWW, University Of Electro-Communications

White papers 2008-06-10

Dynamic TCP Acknowledgment With Sliding Window

The dynamic TCP acknowledgement problem formulated by Dooly et al. has been intensively studied in the area of competitive analysis. However, their framework does not consider the sliding window that restricts the maximum number of packets that the sender can inject into the network without an acknowledgement in TCP protocol....

Tags: Acknowledgement, Window, TCP, University Of Electro-Communications, Tcp/Ip, Construction, Networking

White papers 2007-05-11

Network Distributed Monitoring System Based on Robot Technology Middleware

In this paper, a network distributed monitoring system for human assistance robot system was developed to improve the interaction among the users and local service robotic system and enable a remote user to get a better understanding of what is going on in the local environment. Home integration robot system...

Tags: Network, Monitoring System, Middleware, University Of Electro-Communications, Robots, Emerging Technologies

White papers 2007-03-01

Parallel Processing of Matrix Multiplication in a CPU and GPU Heterogeneous Environment

GPUs for numerical computations are becoming an attractive alternative in research. This paper proposes a new parallel processing environment for matrix multiplications by using both CPUs and GPUs. The execution time of matrix multiplications can be decreased to 40.1% by the method, compared with using the fastest of either CPU...

Tags: Environment, Parallel Processing, CPU, GPU, University Of Electro-Communications

White papers 2006-04-27

Additional Resources

Janus particles as body submarines?

Janus particles, which take their name from a Roman god with two faces, are microscopic 'two-faced' spheres whose halves are physically or chemically different. Now, U.S. researchers have shown that some of these Janus microparticles can move like stealthy submarines when an alternating electrical field is applied to liquid surrounding...

Tags: Hemisphere, Particle, Thin Clients, Hardware, Roland Piquepaille

Blog posts 2008-02-29

Driving with poor vision becomes possible

Spanish researchers have developed and successfully tested a computer simulator allowing visually impaired to drive. This system is called SERBA (short for 'Sistema Electro-óptico Reconfigurable de ayuda para Baja Visión'), which means 'Reconfigurable Electric-Optical System for Low Vision' in English. This innovative system is based on a reconfigurable device known...

Tags: Patient, Vision, FPGA, Strategy, Management, Roland Piquepaille

Blog posts 2007-10-17

The world's smallest drilled hole

Engineers and scientists at Cardiff University are appearing in this years edition of the Guinness World Records book for the smallest hole ever drilled -- at least with human-made tools. By using a process named electro-discharge machining EDM, theyve drilled holes just 22 microns wide. Now they want to use...

Tags: Manufacturing Engineering Centre, Cardiff University, manufacturing

Blog posts 2006-11-19

Cornell researchers develop projector in your pocket

Coming soon to a cellphone near you ... the latest Hollywood blockbuster on HDTV. MIT Technology Review reports that researchers at Cornell University have developed a laser technology that could lead to the ability to project high-definition television images from devices the size of cell phones. The new technology...

Tags: Cornell University, mirror, MEMS

Blog posts 2006-09-06

McBlare, a robotic bagpipe player

If you've read me for a while, you know I like music and robots. So when I discovered via The Scotsman that researchers at Carnegie Mellon University CMU have built a robot bagpiper, I wanted to listen to it. In "Not a bad piper... for a robot," the writer reports...

Tags: chanter, McBlare

Blog posts 2006-06-27

Quantum cryptography using qutrits

Quantum cryptography QC is still in a very early stage and there are very few commercial products available. But this doesn't prevent researchers to look at new solutions. For example, physicists from the University of Wien, Austria, are testing qutrits instead of the more common qubits. These qutrits can simultaneously...

Tags: cryptography

Blog posts 2006-05-29

Smart glasses may soon replace bifocals

Presbyopia is a visual defect which affects many people over 40 years old, including myself. As we cannot focus on close objects, we tend to rely on bifocal glasses. But with bifocals, the two parts of the lenses focus separately on two different distances and it can be difficult for...

Tags: PixelOptics

Blog posts 2006-04-23

Moore's Law - and Murphy's corollary

I have a cynical corollary on Moore's law as commonly understood to predict rapid, evolutionary, change in microprocessors. It goes like this: "in computing, as elsewhere, expertise decays in the presence of technical change, leaving only out-dated reflexes and organizational position in its place." I've worked, for example, for a...

Tags: job, data processing

Blog posts 2005-08-11