中国开放科研知识云: 检索

Differences in Counting Skills Between Chinese and German Children Are Accompanied by Differences in Processing of Approximate Numerical Magnitude Information 期刊论文
FRONTIERS IN PSYCHOLOGY, 2019, 卷号: 9, 页码: 8
作者: Lonnemann, Jan; Li, Su; Zhao, Pei; Linkersdoerfer, Janosch; Lindberg, Sven

收藏 | 浏览/下载：27/0 | 提交时间：2019/02/04

Approximate Number System Subitizing Counting Cross-national Comparison Preschool

Prediction equations for the effective number of cycles of ground motions for shallow crustal earthquakes 期刊论文
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2019, 卷号: 125
作者: Du, Wenqi; Yu, Xiaohui; Wang, Gang

收藏 | 浏览/下载：3/0 | 提交时间：2019/12/05

Effective number of cycles Empirical equations NGA-West2 database Mixed-effects model Rainflow range-counting

A High Precision Quality Inspection System for Steel Bars Based on Machine Vision 期刊论文
SENSORS, 2018, 卷号: 18
作者: Zhang, Xinman; Zhang, Jiayu; Ma, Mei; Chen, Zhiqi; Yue, Shuangling

收藏 | 浏览/下载：3/0 | 提交时间：2019/11/26

quality inspection machine vision dimensional measurement video data acquisition number counting steel bars high precision

Single-Cell-Based Platform for Copy Number Variation Profiling through Digital Counting of Amplified Genomic DNA Fragments 期刊论文
ACS APPLIED MATERIALS & INTERFACES, 2017
Li, Chunmei; Yu, Zhilong; Fu, Yusi; Pang, Yuhong; Huang, Yanyi

收藏 | 浏览/下载：6/0 | 提交时间：2017/12/03

single-cell digital counting DNA amplification copy number variation maximum likelihood genomic sequencing STRUCTURAL VARIATION POISSON-DISTRIBUTION AMPLIFICATION PCR RECOMBINATION QUANTITATION ACCURATE DEVICE SPERM

Digital Polymerase Chain Reaction in an Array of Femtoliter Polydimethylsiloxane Microreactors 期刊论文
analytical chemistry, 2012
Men, Yongfan; Fu, Yusi; Chen, Zitian; Sims, Peter A.; Greenleaf, William J.; Huang, Yanyi

收藏 | 浏览/下载：4/0 | 提交时间：2015/11/10

INDIVIDUAL ENVIRONMENTAL BACTERIA DNA COPY NUMBER NANOFLUIDIC PLATFORM COLORECTAL CANCERS ALLELIC IMBALANCE COUNTING ALLELES EARLY-STAGE PCR MICROFLUIDICS TUMORIGENESIS

Study on spectrograph for ionosphere: A broadband imaging instrument prototype for far-ultraviolet (EI CONFERENCE) 会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yu L.; Wang S.-R.; Lin G.-Y.

收藏 | 浏览/下载：25/0 | 提交时间：2013/03/25

Current research on space-based exploration for the ionosphere needs more advanced technologies. Because the spectral signals in the ionosphere distributing basically in the far-ultraviolet waveband are very weak. Usual spectrometer structures and detectors such as CCD can't receive enough information. Based on this principle of atmospheric sounding the imaging spectrometer prototype for ionosphere detection application was designed to solve the problem. This prototype consists of the telescope and the imaging spectrometer. The simple structure and small number of mirrors can help higher transmission efficiency be achieved and weak signals detection be implemented. The telescope is an off-axis parabolic mirror and the spectrometer is a modified Czerny-Turner spectral imaging system. Modified Czerny-Turner spectrometer contains a spherical mirror a fixed plane grating and a toroidal mirror. By adjusting the incident angle to the collimating mirror and using toroidal mirror coma and astigmatism were corrected well. We also optimize distances between the grating to the focusing mirror and the focusing mirror to the image plane to improve disadvantages of traditional Czerny-Turner structure. Designed results demonstrate that aberrations are substantially corrected and high image quality can be obtained in broad waveband. The photon counting Wedge-Strip-Anode detector with micro-channel planes as the receiving plane is accepted for the instrument prototype. The other photon counting 2-D detector responding well for weak light such as Cross-Delay line detector and MAMA detector can also be used for detection. The calibration and performances testing system is made of a vacuum system a deuterium lamp a monochrometer and the instrument prototype. Results obtained from the experiment show that the spectral resolution is 2.4 nm and the spatial resolution is 80 m. The other calibration experiments are running. The technology of the spectrometer prototype is important for the research and applications of ionosphere remote sensing. 2011 SPIE.

Condition number based complexity estimate for solving polynomial systems 其他
2011-01-01
She, Zhikun; Xia, Bican; Zheng, Zhiming

收藏 | 浏览/下载：5/0 | 提交时间：2015/11/12

Real-root-counting Newton operator Condition number Complexity analysis INEQUALITIES

Condition number based complexity estimate for solving polynomial systems 期刊论文
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2011, 卷号: 235, 页码: 2670-2678
作者: She, Zhikun; Xia, Bican; Zheng, Zhiming

收藏 | 浏览/下载：2/0 | 提交时间：2020/01/06

Real-root-counting Newton operator Condition number Complexity analysis

Irradiation effects of proton and gamma -ray on CVD diamond detector 期刊论文
2010, 2010
Wang Lan; Ouyang Xiao-ping; Fan Ru-yu; Zhang Zhong-bing; Pan Hong-bo; Liu Lin-yue; Lu Fan-xiu

收藏 | 浏览/下载：4/0

ICP-MS在线定量分析气溶胶粒子的技术研究 期刊论文
2010, 2010
粟永阳; 李志明; 周国庆; 徐江; 翟利华; 黄能斌; 曾实; 朱凤蓉; SU Yong-yang; LI Zhi-ming; ZHOU Guo-qing; XU Jiang; ZHAI Li-hua; HUANG Neng-bin; ZENG Shi; ZHU Feng-rong

收藏 | 浏览/下载：3/0

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