Results 211 to 220 of about 123,075 (256)

Extending the lifetime of a WSN by partial covers

2013 IEEE International Conference on Communications (ICC), 2013
While extending the lifetime of a wireless sensor network (WSN) with full coverage has been extensively studied, it was found recently that the lifetime of a WSN can be prolonged significantly if partial covers are used instead. In this paper, we formally define the problem of extending the lifetime of a WSN using partial covers. (Throughout this paper,
Brendan Mumey, Kelly Spendlove, Binhai Zhu   +2 more
openaire   +1 more source

Extending flash lifetime in secondary storage

Microprocessors and Microsystems, 2015
Unlike magnetic disks, NAND flashes can be written a limited number of times. As flash memory densities increase and cell sizes shrink, further decreases in write endurance is expected. Although some mitigation is achieved by wear leveling, write endurance remains a concern for write intensive applications.
Chengjun Wang, Sanjeev Baskiyar
openaire   +1 more source

Coset coding to extend the lifetime of memory

2013 IEEE 19th International Symposium on High Performance Computer Architecture (HPCA), 2013
Some recent memory technologies, including phase change memory (PCM), have lifetime reliabilities that are affected by write operations. We propose the use of coset coding to extend the lifetimes of these memories. The key idea of coset coding is that it performs a one-to-many mapping from each dataword to a coset of vectors, and having multiple ...
Adam N. Jacobvitz, A. Robert Calderbank, Daniel J. Sorin   +2 more
openaire   +1 more source

Extending lifetime of portable systems by battery scheduling

Proceedings Design, Automation and Test in Europe. Conference and Exhibition 2001, 2002
Multi-battery power supplies are becoming popular in electronic appliances of the latest generations, due to economical and manufacturing constraints. Unfortunately, a partitioned battery subsystem is not able to deliver the same amount of charge as a monolithic battery with the same total capacity.
BENINI L, CASTELLI G, MACII, Alberto, MACII, Enrico, PONCINO, MASSIMO, SCARSI R.   +5 more
openaire   +2 more sources

Extended lifetime of fluoride optics

SPIE Proceedings, 2007
Surface and coating technology plays an important role for extending lifetime of fluoride optics for ArF excimer laser applications. Optically finished CaF2 optics is characterized as top surface and subsurface by means of non-distractive quasi-Brewster angle technique.
Jue Wang, Colleen R. Clar, Horst Schreiber   +2 more
openaire   +1 more source

Extended lifetime of a wire chamber

Nuclear Instruments and Methods in Physics Research, 1983
Abstract It has been shown experimentally that a small amount of hydrogen in the noble gas and hydrocarbon mixtures can significantly slow down the aging effect. For example the lifetime of the proportional counter filled with ArCH 4 is prolonged by a factor of about 20.
Heikki Sipilä, Marja-Leena Järvinen
openaire   +1 more source

Extending lifetime of plastic changes in the human brain

European Journal of Neuroscience, 2006
AbstractThe ability of the brain to adjust to changing environments and to recover from damage rests on its remarkable capacity to adapt through plastic changes of underlying neural networks. We show here with an eye movement paradigm that a lifetime of plastic changes can be extended to several hours by repeated applications of theta burst ...
Nyffeler, Thomas, Wurtz, Pascal, Lüscher, Hans-Rudolf, Hess, Christian Walter, Senn, Walter, Pflugshaupt, Tobias, von Wartburg, Roman, Lüthi Steinheimer, Mathias, Müri, René Martin   +8 more
openaire   +4 more sources

Strategies for extending the useful lifetime of DES

Computers & Security, 1987
Since 1977, private-sector users have been attracted to cryptography as a way to preserve the security of computer traffic in transit or files because of the availability of the U.S. Data Encryption Standard (DES). However, technical advances such as supercomputers and fifth-generation software threaten the security of DES. The National Security Agency
openaire   +1 more source

An improved AODVjr algorithm for extending network lifetime

2012 3rd IEEE International Conference on Network Infrastructure and Digital Content, 2012
Simple and flexible as AODVjr is, it is used in Zigbee mesh networks as the routing mechanism. To reduce and balance the network's energy consumption, many improved energy-aware routing algorithms have been presented based on AODVjr. However, they paid little attention to the excessive energy consumption of low-energy nodes caused by RREQ flooding ...
Yingqi Niu, Hongxia Bie
openaire   +1 more source

Extended Operational Lifetime of a Photosystem-Based Bioelectrode

Journal of the American Chemical Society, 2019
The development of bioelectrochemical assemblies for sustainable energy transformation constitutes an increasingly important field of research. Significant progress has been made in the development of semiartificial devices for conversion of light into electrical energy by integration of photosynthetic biomolecules on electrodes.
Fangyuan Zhao, Adrian Ruff, Matthias Rögner, Wolfgang Schuhmann, Felipe Conzuelo   +4 more
openaire   +2 more sources