Far field reconstruction from phaseless measurement dataEDP Sciences - Tập 2 - Trang 318-320 - 1997
Chen Zhangyou, Xu Penggen
A new method on phase inverse problem in near field far field transformation is
presented in this paper. It makes the relation very clear between phase and
amplitude on a curve surface and another surface by describing the relation of
the fields on two closed curve surfaces by matrix. Comparing with the other
created functionals, the functional based on this method belongs in real space
rather tha... hiện toàn bộ
Evaluation of cross-strait public library WebsiteEDP Sciences - Tập 11 - Trang 1202-1208 - 2006
Jiang Yimin, Hu Lan, Yang Zhifeng, Yan Guanxiang, Shen Xiangxing
In recent years, many evaluations on Web sites have been conducted, and relevant
researches have also been carried out in academic circle. This paper introduces
an innovative method called correspondence analysis to evaluate public library
Websites from five aspects-traffic, visit, connectivity, speed and page views.
Some suggestions based on the result of evaluation are given in this paper with
a... hiện toàn bộ
Linked-tree: An aggregate query algorithm based on sliding window over data streamEDP Sciences - Tập 11 - Trang 1114-1119 - 2006
Yu Yaxin, Wang Guoren, Su Dong, Zhu Xinhua
How to process aggregate queries over data streams efficiently and effectively
have been becoming hot research topics in both academic community and industrial
community. Aiming at the issues, a novel Linked-tree algorithm based on sliding
window is proposed in this paper. Due to the proposal of concept area, the
Linked-tree algorithm reuses many primary results in last window and then avoids
lots... hiện toàn bộ
Second approximation model for optical head in super high density storage technologyEDP Sciences - Tập 5 - Trang 155-158 - 2000
Wu Wan, Pei Xian-deng
The paper presents second approximation model for optical head in super
high-density storage technology firstly and it is an important part for three
grades approximate model of ultra-small-size quantum well corn-shaped laser and
simulative calculations. It supplies the important and useful results for the
NFOD optical head design with ultra thin active layer and ultra small spot
laser.
Securing multicast route discovery for mobile ad hoc networksEDP Sciences - Tập 12 - Trang 189-192 - 2007
Mingxi Yang, Layuan Li, Yiwei Fang
This paper presents SMRAN, a novel securing multicast route discovery scheme for
mobile ad hoc networks. The scheme relies entirely on hash chains based one-time
signature mechanism, HORSEI, with very efficient signing and verifying, and we
do this by improving the HORSE protocol through the introduction of intermediate
hash joints. The main purpose of SMRAN is to provide source authentication for... hiện toàn bộ