中国科学院机构知识库网格系统: 检索

Single cell transcriptomic analysis of human mesenchymal stem cells reveals limited heterogeneity 期刊论文 OAI收割
CELL DEATH & DISEASE, 2019, 卷号: 10, 期号: -, 页码: UNSP 368
作者: Huang, Yin; Li, Qing; Hu, Mingyuan; Wang, Yu; Du, Liming

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收藏 | 浏览/下载：31/0 | 提交时间：2020/12/09

Patient-derived xenograft Tumor model Drug response analysis Preclinical drug testing Personalized drug selecting

Feasibility analysis of junction temperature measurement for GaN-based high-power white LEDs by the Peak-Shift Method 期刊论文 OAI收割
Chinese Optics Letters, 2013, 卷号: 0, 期号: 9
作者: Jingjing Zhang; Tao Zhang; Shishen Liu; Shidong Yuan; Yafang Jin

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收藏 | 浏览/下载：20/0 | 提交时间：2014/11/05

Junction Impedance Currents Selecting Tester Initially Created Pulsed Spectrometer Driving

Selecting optimal training data for learning to rank 期刊论文 OAI收割
INFORMATION PROCESSING & MANAGEMENT, 2011, 卷号: 47, 期号: 5, 页码: 730-741
作者: Geng, Xiubo; Qin, Tao; Liu, Tie-Yan; Cheng, Xue-Qi; Li, Hang

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收藏 | 浏览/下载：21/0 | 提交时间：2019/12/16

Learning to rank Selecting optimal training data

Design and calibration of the solar irradiance monitor (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者: Yang D.-J.; Gong C.-H.; Wang Y.-P.; Ye X.; Fang W.

收藏 | 浏览/下载：38/0 | 提交时间：2013/03/25

The solar irradiance monitor (SIM) with the design accuracy of 5 used to monitor the secular changes of the total solar irradiance on FY-3 satellite takes the sun-scanning measurement method on-orbit. Compared to the sun-tracking measurement method this method simplifies the structure and cuts the cost but the measuring accuracy is affected by the sun-synchronous orbit sunlight incidence angle and the installing angle of the SIM in the satellite. Through the ground calibration experiment studies on the affection of different sunlight incidence angles to the measurement accuracy. First by the satellite tool kit (STK) simulation software simulates the orbital parameters of the sun-synchronous satellite and calculates the Sun ascension and declination at any time. By the orbit coordinate transformation matrix gets the components of the Sun vectors to the axes of the satellite and base on the components designs the field of view and the installing angles of the SIM. Then designs and completes the calibration experiment to calibrate the affection of the incidence angles. Selecting 11 different angles between the sunlight and the satellite X-axis measures the total solar irradiance by the SIM at each angle and compares to the irradiances of the SIAR reference radiometers and gets the coefficient curves of the three channels of the SIM. Finally by the quadratic fitting gets the correction equations on the incidence angles: R 1=5.7110-52 -2.45310 -3+1.0302 R2=2.8410-5-1. 96510-3+1.0314 and R3 =1.7210 -52-4.18410-4+0.9946. The equations will aimprove the on-orbit measurement accuracy of the solar irradiance and are very important to the on-orbit data processing after the satellite launched. 2011 SPIE.

Research on the identification for a nonlinear system (EI CONFERENCE) 会议论文 OAI收割
International Conference on Optical, Electronic Materials and Applications 2011, OEMA 2011, March 4, 2011 - March 6, 2011, Chongqing, China
作者: Liu J.; Jia P.; Liu J.; Liu J.

收藏 | 浏览/下载：36/0 | 提交时间：2013/03/25

The characteristic of the drift error of inertial platform is a high-order nonlinear dynamic system using the neural networks' abilities of universal approximation of differentiable trajectory and capturing system dynamic information this paper presents the drift error identifying project of inertial platform based on Elman networks structure. First the drift error model of inertial platform is established after selecting the input and output for network momentum and alterable speed algorithm is used to speed up the network convergence. On the basis of the algorithm the extended nonlinear node function in the hidden network does not only improve the learning speed of network but also satisfies the need of accuracy on system identification. Through the drift error data measured on inertial platform the training result shows that the scheme achieves satisfied identification results. (2011) Trans Tech Publications.

Mobile robot path planning based on improved ant colony optimization algorithm 会议论文 OAI收割
Yantai, China, July 22-24, 2011
作者: Zhao JP(赵娟平); Gao XW(高宪文); Fu XH(符秀辉)

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收藏 | 浏览/下载：19/0 | 提交时间：2017/03/14

Ant Colony Optimization Path Planning Mobile Robot Path Selecting Strategy Global Pheromone Updating

Extracting sea-sky-line based on improved local complexity (EI CONFERENCE) 会议论文 OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
作者: Zhang Y.-F.

收藏 | 浏览/下载：28/0 | 提交时间：2013/03/25

Sea-sky-line extraction under complicated sea-sky background is an important aspect of long-range target tracking research. An algorithm based on improved local complexity is proposed according to the feature that the sky and the sea usually show up at different gray levels in sea-sky background images. Median filter is applied first to remove peak noise and then the point set of sea-sky-line region which has the greatest change in image is obtained by calculating the local complexity of image and selecting a segmentation threshold. Finally Hough transform is used to extract the sea-sky-line. The experiment results indicate that this method can extract sea-sky-line under simple and complicated sea-sky backgrounds which is robust and can improve noise immunity of the algorithm. 2010 IEEE.

Attitude determination of small, dim and high-speed targets based on multi-CMOS intersecting system (EI CONFERENCE) 会议论文 OAI收割
2nd International Conference on Information Science and Engineering, ICISE2010, December 4, 2010 - December 6, 2010, Hangzhou, China
作者: Li M.

收藏 | 浏览/下载：36/0 | 提交时间：2013/03/25

In order to measure attitude of small dim and high-speed targets in shooting range intersecting system based on multiple high-speed CMOS cameras was introduced in this paper. CMOS cameras were laid near from objects for small size using multiple CMOS cameras to compose intersecting system for big number of targets tested and selecting CMOS camera between CMOS and CCD for low cost and considering damage to measurement equipment of objects tested. Pitch angle and yaw angle were measured by extracting axle wire through image processing image sequences were obtained from cameras laying on two sides. Velocity of objects was calculated by least square curve-fitting acquiring coordinate of centroid on image received by CMOS camera laying below effective viewing field. One CMOS camera was laid on right ahead for measuring roll angle. Station mode introduced in this paper has virtue of low cost and free extending. 2010 IEEE.

A single wavelength 1339 nm Nd:YAP pulsed laser 期刊论文 OAI收割
Optics Communications, 2009, 卷号: 282, 期号: 22, 页码: 4397-4400
Y. Wei, G. Zhang, C. H. Huang, H. Y. Zhu, L. X. Huang, X. J. Ou-Yang and G. F. Wang

收藏 | 浏览/下载：24/0 | 提交时间：2012/11/06

1339 nm Nd:YAP Pulse laser Selecting polarization nd-yap laser nd-yalo3 laser crystals

Synthesis of Spherical Monodisperse Gold Nanoparticles 期刊论文 OAI收割
PROGRESS IN CHEMISTRY, 2009, 卷号: 21, 期号: 5, 页码: 971-981
作者: Yan Ya; Li Jinru; Yang Yun

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收藏 | 浏览/下载：17/0 | 提交时间：2019/04/09

Monodisperse Gold Nanoparticles Refluxing Ripening Seeding Growth Size-selecting Electrophoresis