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IDD-YOLOv7: A lightweight and efficient feature extraction method for insulator defect detection 期刊论文  OAI收割
ENERGY REPORTS, 2025, 卷号: 13, 页码: 1467-1487
作者:  Zhao, Yongxiang;  Zhang, Guoqing;  Luo, Wei;  Tang, Ruiyin;  Sun, Ying
  |  收藏  |  浏览/下载：7/0  |  提交时间：2025/03/31
Triaxial Axis Shear Mechanical Properties of Fiber-Reinforced Foamed Lightweight Soil 期刊论文  OAI收割
JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2021, 卷号: 33, 期号: 4, 页码: 15
作者:  Jiangbo, Xu;  Yongzhen, Luo;  Yuanzhi, Wang;  Changgen, Yan;  Liujun, Zhang
  |  收藏  |  浏览/下载：55/0  |  提交时间：2021/06/10
PokerNet: Expanding Features Cheaply via Depthwise Convolutions 期刊论文  OAI收割
International Journal of Automation and Computing, 2021, 卷号: 18, 期号: 3, 页码: 432-442
作者:  Wei Tang;  Yan Huang;  Liang Wang
  |  收藏  |  浏览/下载：62/0  |  提交时间：2021/05/24
加筋泡沫轻质土三轴剪切力学特性 期刊论文  OAI收割
交通运输工程学报, 2020, 卷号: 20, 期号: 4, 页码: 120
作者:  许江波;  王元直;  骆永震;  晏长根;  张留俊
  |  收藏  |  浏览/下载：25/0  |  提交时间：2021/03/16
高精度轻量级的人脸关键点检测算法 期刊论文  OAI收割
激光与光电子学进展, 2020, 卷号: 57, 期号: 24
作者:  徐礼淮;  李哲;  蒋佳佳;  段发阶;  傅骁
  |  收藏  |  浏览/下载：19/0  |  提交时间：2021/03/23
Cell Structure Variation in Poly(ether-mb-amide) Copolymer Foams Induced by Chemi-Crystallization 期刊论文  OAI收割
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2020, 卷号: 59, 期号: 24, 页码: 11340-11349
作者:  Cao, Yiyu;  Pang, Yongyan;  Dong, Xia;  Wang, Dujin;  Zheng, Wenge
  |  收藏  |  浏览/下载：70/0  |  提交时间：2020/12/16
Lightweight design and analysis of support structure of certain UAV engine (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Electrical Insulating Materials and Electrical Engineering, EIMEE 2012, May 25, 2012 - May 27, 2012, Shenyang, Liaoning, China
Xing X.; Liu B.; Han X.; Jia H.
收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25
Support structure of UAV (Unmanned Aerial Vehicle) engine is the important support for UAV engine  playing a support role and bearing extremely complex load  so its lightweight  strength and dynamic characteristics have a great influence on high performance of UAV. This paper focuses on UAV having the requirement of high performance and stability to the support structure of engine  and uses the software of MSC.Patran and MSC.Nastran and topology optimization criterion to lightweight design and analysis the support structure of UAV engine under the premise condition of existing constraints. Then the static strength and modal are analyzed for the result of lightweight design  and the strength of the model and dynamic characteristics are verified. (2012) Trans Tech Publications  Switzerland.  
Surface shape optimization for the space membrane reflector (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
作者:  Zhang Y.;  Zhang P.
收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25
Space membrane reflector is very promised for optical quality application with the merits of ultra-lightweight and flexible. In order to improve the surface precision of membrane reflectors  the formation and surface shape error of a membrane at uniform load are studied based on the henky-cambell equations of circular membrane. The ANSYS software is used to build an optimization model of membrane reflector surface shape  in which the yield strength is the state variable  the surface load on ten concentric annular regions of the mirror is the design variable  and the minimum RMS between ideal surface and mirror surface is the target function. and the theoretical and experimental result show that RMS and PV of the optimized surfaces are reduced respectively than those before optimization. In a word  this paper offers the theoretical and experimental basis of the polyimide membrane reflector. 2011 IEEE.  
Design of motion compensation mechanism of satellite remote sensing camera (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
Gu S.; Yan Y.; Xu K.; Jin G.
收藏  |  浏览/下载：47/0  |  提交时间：2013/03/25
With the development of aerospace remote sensing technology  the ground resolution of remote sensing camera enhances continuously. Since there is relative motion between camera and ground target when taking pictures  the target image recorded in recording media is moved and blurred. In order to enhance the imaging quality and resolution of the camera  the image motion had to be compensated. In order to abate the effect of image motion to image quality of space camera and improve the resolution of the camera  the compensation method of image motion to space camera is researched. First  the reason of producing drift angle and adjustment principle are analyzed in this paper. This paper introduce the composition and transmission principle of image motion compensation mechanism. Second  the system adopts 80C31 as controller of drift angle  and adopts stepping motor for actuators  and adopts absolute photoelectric encoder as the drift Angle measuring element. Then the control mathematical model of the image motion compensation mechanism are deduced  and it achieve the closed-loop control of the drift angle position. At the last  this paper analyses the transmission precision of the mechanism. Through the experiment  we measured the actual precision of the image motion compensation mechanism  and compared with the theoretical analysis. There are two major contributions in this paper. First  the traditional image motion compensation mechanism is big volume and quality heavy. This has not fit for the development trend of space camera miniaturization and lightweight. But if reduce the volume and quality of mechanism  it will bring adverse effects for the precision and stiffness of mechanism. For this problem  This paper designed a image motion compensation that have some advantages such as small size  light weight at the same time  high precision  stiffness and so on. This image motion compensation can be applicable to the small optics cameras with high resolution. Second  the traditional mechanism control need to corrected  fitting and iterative for the control formula of mechanism. Only in this way  we can get the optimal control mathematical model. This paper has high precision of the control formula derived. It can achieve the high precision control without fitting  It also simplify the difficulty of control mathematical model establishment. This paper designed the range of adjusting of image motion compensation mechanism between -5 +5. Based on choosing-5  -4  -3  -2  -1  0  +1  +2  +3  +4  +4 as the expectation value of the imaginary drift angle  we get ten groups of the fact data in adjusting drift angle measured. The test results show that the precision of the drift angle control system can be achieved in 1. It can meet the system requirements that the precision of the control system is less than 3'  and it can achieve the high-precision image motion compensation. 2011 SPIE.  
The lightweight design of the inner framework of the opto-electronic stabilization platform based on finite element analysis (EI CONFERENCE) 会议论文  OAI收割
2011 IEEE 18th International Conference on Industrial Engineering and Engineering Management, IE and EM 2011, September 3, 2011 - September 5, 2011, Changchun, China
Zou Q.; Ma H.-L.; Hu Y.; Ding J.-W.
收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25
The airborne opto-electronic stabilization platform should have the characteristics of high requirements for stability  tracking accuracy and lightweight. In order to verify the rationality of the main load-bearing structure  the inner-gimbal  finite element analysis was performed. Because of the poor working conditions of the airborne opto-electronic stabilization platform and the wide range of working temperature variation  -45 C 60 C  according to the actual working environment  air-resistance and temperature were added to the loads of the inner-gimbal in analysis. What's more  based on the analysis results  lightweight design was performed to the initial model and 64.37% of mass was decreased. The remarkable effect was obtained. This research is going to be instructive to design and production of the airborne opto-electronic stabilization platform in the future. 2011 IEEE.