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浏览/检索结果: 共8条,第1-8条 帮助

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Integration of Train Regulation and Speed Profile Optimization Based on Feature Learning and Hybrid Search Algorithm 期刊论文  OAI收割
IEEE TRANSACTIONS ON COMPUTATIONAL SOCIAL SYSTEMS, 2023, 页码: 10
作者:  
Zhou, Min;  Hou, Zhuopu;  Wu, Xingtang;  Dong, Hairong;  Wang, Fei-Yue
  |  收藏  |  浏览/下载:22/0  |  提交时间:2024/02/22
Influence Analysis of Spectral Line-Shape Models on Spectral Diagnoses Under High-Temperature Conditions 期刊论文  OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 卷号: 43
作者:  
Zeng Si-xian;  Ren Xin;  He Hao-xuan;  Nie Wei
  |  收藏  |  浏览/下载:22/0  |  提交时间:2023/11/17
Microstructure and mechanical properties of Al-Mg-Er sheets jointed by friction stir welding 期刊论文  OAI收割
Materials & Design, 2013, 卷号: 52, 页码: 706-712
H. L. Hao; D. R. Ni; Z. Zhang; D. Wang; B. L. Xiao; Z. Y. Ma
收藏  |  浏览/下载:23/0  |  提交时间:2013/12/24
An advanced LEO satellite network model based on MPLS-TP (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Advanced Intelligence and Awareness Internet, AIAI 2010, October 23, 2010 - October 25, 2010, Beijing, China
作者:  
Zhang Y.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
LEO (Low Earth Orbit) satellite networks are capable of providing broadband access to end users in any part of the world. With the characteristics of high-speed movement and rapid dynamic topology of LEO satellites  networking has always been one of the key issues in LEO satellite network. MPLS-TP (Multi-Protocol Label Switching-Transport Profile) is an excellent packet transport network (PTN) technology in terrestrial networks  which can support multi-service and have perfect function of QoS (Quality of Service)  OAM (Operation Administration Maintenance) and survivability. In this paper  the characteristics of LEO satellite network and functional architecture of MPLS-TP are introduced. Then an advanced LEO satellite network model based on MPLS-TP (ALSN-M) is proposed  which can guarantee a connection-oriented seamless data transmission. Furthermore topology and routing algorithms of proposed LEO satellite network model is analyzed. In the end  the paper describes how to setup and remove a LSP (Label Switched Path) and how to maintain an exiting LSP when a handover happens.  
Surface layer similarity in the nocturnal boundary layer: the application of Hilbert-Huang transform 期刊论文  OAI收割
BIOGEOSCIENCES, 2010, 卷号: 7, 期号: 4, 页码: 1271-1278
作者:  
Ma YM(马耀明)
收藏  |  浏览/下载:17/0  |  提交时间:2011/04/28
Real-time video compressing under DSP/BIOS (EI CONFERENCE) 会议论文  OAI收割
MIPPR 2009 - Medical Imaging, Parallel Processing of Images, and Optimization Techniques: 6th International Symposium on Multispectral Image Processing and Pattern Recognition, October 30, 2009 - November 1, 2009, Yichang, China
Chen Q.-P.; Li G.-J.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
This paper presents real-time MPEG-4 Simple Profile video compressing based on the DSP processor. The programming framework of video compressing is constructed using TMS320C6416 Microprocessor  the architecture level optimizations are used to improve software pipeline. The system used DSP/BIOS to realize multi-thread scheduling. The whole system realizes high speed transition of a great deal of data. Experimental results show the encoder can realize real-time encoding of 768*576  TDS510 simulator and PC. It uses embedded real-time operating system DSP/BIOS and the API functions to build periodic function  25 frame/s video images. 2009 Copyright SPIE - The International Society for Optical Engineering.  tasks and interruptions etcs. Realize real-time video compressing. To the questions of data transferring among the system. Based on the architecture of the C64x DSP  utilized double buffer switched and EDMA data transfer controller to transit data from external memory to internal  and realize data transition and processing at the same time  
基于低速面阵CCD的正弦相位调制干涉测量 期刊论文  OAI收割
中国激光, 2007, 卷号: 34, 期号: 2, 页码: 265, 271
何国田; 王向朝; 唐锋
收藏  |  浏览/下载:1210/203  |  提交时间:2009/09/18
Key techniques of laser direct writing of fine lines on the spherical surface (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China
Liang F.; Hu J.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
The main principles of laser direct writing (LDW) system for lines on the spherical surface (SS) are discussed. It is pointed out that line profile is determined by the exposure dose distribution  which lies on the light intensity distribution of focus plane and the scanning speed. To improve the quality of line profile on the SS  several key techniques as follows are introduced. Firstly  the unique system configuration  four axes mutually intersecting at the center of the SS  is adopted  which ensures the shape of the focus be maintained circular during the writing period. Secondly  an automatic focus system (AFS) with the function of automatic focus in a certain range is introduced. Thirdly  to guarantee the linear velocity to accord with the exposure character of the photoresist all the time  an efficient arithmetic that controls motors run at appropriate angular velocity in different latitude is developed. Finally  to achieve a stable and well-behaved system so as to compensate the velocity instability resulting from unavoidable errors of mechanical and electronics factor  a powerful programmable multi-axis controller (PMAC) is utilized as the kernel element of the servocontrol system  and the curves of step response and parabolic response achieved by feedforward and PID loop tuning indicate that the location precision and velocity stability have reached a high level. The experimental results of LDW of lines on the SS work piece with a diameter 30 mm and a radius equal to 100 mm are given. The section analysis of the lines on the photoresist by the atomic force microscope (AFM) after exposure and development is performed. The results show that line width is about 3.0 m  and the steep sides of the lines are parallel to each other.