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	Optimized High-order Finite-difference Modeling of Second-order Strain Gradient Wave Field Effects 期刊论文 OAI收割 APPLIED GEOPHYSICS, 2023, 页码: 13 作者: Hu, Zi-hao; Feng, Hai-xin; Zhou, Zhi-chun; Li, You-ming; Whang, Zhi-yang \| 收藏 \| 浏览/下载：23/0 \| 提交时间：2024/01/02 Second-order strain gradient Numerical modelling Black widow optimization algorithm Asymmetric elastic wave equation
	Continuous-time Distributed Heavy-ball Algorithm for Distributed Convex Optimization over Undirected and Directed Graphs 期刊论文 OAI收割 Machine Intelligence Research, 2022, 卷号: 19, 期号: 1, 页码: 75-88 作者: Hao-Ran Yang; Wei Ni \| 收藏 \| 浏览/下载：11/0 \| 提交时间：2024/04/23 Distributed convex optimization second-order distributed algorithm multi-agent systems gradient tracking directed graph
	Inclusion problem in second gradient elasticity 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 2018, 卷号: 132, 页码: 60-78 作者: Ma HS(马寒松); Hu GK; Wei YG(魏悦广); Liang LH(梁立红) \| 收藏 \| 浏览/下载：55/0 \| 提交时间：2018/10/30 Green's function Eshelby tensor Second gradient Inclusion Effective modulus
	Second order potential vorticity and its potential applications 期刊论文 OAI收割 SCIENCE CHINA-EARTH SCIENCES, 2014, 卷号: 57, 期号: 10, 页码: 2428-2434 作者: Gao ShouTing; Xu PengCheng; Li Na; Zhou YuShu \| 收藏 \| 浏览/下载：29/0 \| 提交时间：2021/01/14 TROPICAL CYCLONE PART I CYCLOGENESIS STRATOSPHERE DIAGNOSTICS TROPOSPHERE TROPOPAUSE ANOMALIES potential vorticity second order potential vorticity PV evolution PV gradient heavy rainfall
	Features extraction and matching of teeth image based on the SIFT algorithm (EI CONFERENCE) 会议论文 OAI收割 2012 2nd International Conference on Computer Application and System Modeling, ICCASM 2012, July 27, 2012 - July 29, 2012, Shenyang, China 作者: Wang X.; Wang X.; Wang X. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 Using of SIFT algorithm in the image of teeth model can detect the features of the teeth image effectively. In this approach first search over all scales and image locations by using a difference-of-Gaussian function to identify potential interest points that are invariant to scale and orientation. Second select keypoints based on measures of their stability and a detailed model is fit to determine location and scale at each candidate location. Third assign one or more orientations to each keypoint location based on local image gradient directions. Last measure the local image gradients at the selected scale in the region around each keypoint. And then use the KNN algorithm to match the features. Through lots of experiments and comparing with other feature extraction methods this method can detect the features of the teeth model effectively and offer some available parameters for 3D reconstruction of the teeth model. the authors.
	Performance test of steel tube enclosed thermistors in air temperature measurements (EI CONFERENCE) 会议论文 OAI收割 3rd International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2011, January 6, 2011 - January 7, 2011, Shanghai, China 作者: Yang H.; Yan F.; Yan F.; Peng J. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 The performances of two steel tube enclosed precision thermistors are tested in a well controlled air environment to determine if the thermistors have enough accuracy for 0.01C levels of air temperature gradient measurement. Three Fluke's 5641 and three 5610 thermistors were tested for 24 hours in Fluke's 7008 calibration bath in the first step. In the second step the performances of these two thermistors in steady state and transient state air temperature environments were tested for 8 hours separately. The results illustrate that two of the 5641s were airproofed in a temperature well controlled tube when steel tube enclosed precision thermistors are used in air temperature measurement there are unstable departures from each other with a maximum 8.8 mC in constant air medium and 27 mC in temperature changing air medium. The transient-time errors are too large to show the true amounts of temperature changes for air temperature measurement. 2011 IEEE.
	Driving and image enhancement for CCD sensing image system (EI CONFERENCE) 会议论文 OAI收割 2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China Zhang M.; Ren J. 收藏 \| 浏览/下载：36/0 \| 提交时间：2013/03/25 The paper designs a driving circuit of high sensitive wide dynamic for CCD sensing imaging system which adopts a Dalsa-made high resolution full-frame 33-mega pixels area CCD FTF5066M. Field Programmable Gate Array (FPGA) is used as the main device to accomplish the timing design of the circuits and power driver control of the sensor. By using the Correlated Double Sampling (CDS) technique the video noise is reduced and the SNR of the system is increased. The output rate of the imaging system designed with integrated chip can reach to 1.3 frames per second through bi-channel output. We use the histogram specification to adjust the brightness of the captured image. And then use the median filtering to suppress the noise. The traditional gray mean gradient (GMG) and the objective evaluation method based on Human Visual System (HVS) used to verify the effect of image enhancement. 2010 IEEE.