EDP Sciences

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Far field reconstruction from phaseless measurement data
EDP 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
Asymptotic behavior of solutions for a periodic transport equation with delay
EDP Sciences - Tập 3 - Trang 135-138 - 1998
Fu Yiping, Zhou Li, Song Kaitai
This paper analyzes a class of first order partial differential equations with delay (a model for the blood production system). The asymptotic behavior of solutions are studied.
An improved filter of progressive TIN densification for LiDAR point cloud data
EDP Sciences - Tập 20 Số 4 - Trang 362-368 - 2015
Huan Wang, Shugen Wang, Qi Chen, Weihua Jin, Mingwei Sun
Evaluation of cross-strait public library Website
EDP 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 stream
EDP 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
Blend films of chitosan-gelatin
EDP Sciences - Tập 4 - Trang 476-476 - 1999
Yu Jia-hui, Du Yu-min, Zheng Hua
Second approximation model for optical head in super high density storage technology
EDP 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.
The features of microcontroller EM78P447 and technique of port connection with I2C series bus
EDP Sciences - Tập 5 - Trang 461-463 - 2000
Huang Ji-wu, Yang Hong-wei, Li Yang, Shen Rui-hua, You Zhi
By describing the technique of port connection and flow chart ofR/W operation between 24LC01, serial E2PROM, and EM78P447A, features of EM78P447 and its connection with I2C serial bus are introduced. In the end, the programe of writing operation is given.
Securing multicast route discovery for mobile ad hoc networks
EDP 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
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