机构

• 长春光学精密机械与... [19]
• 地理科学与资源研究所 [3]
• 金属研究所 [1]
• 昆明植物研究所 [1]

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• OAI收割 [24]

内容类型

• 会议论文 [19]
• 期刊论文 [5]

发表日期

• 2024 [1]
• 2022 [2]
• 2021 [1]
• 2015 [1]
• 2012 [5]
• 2011 [6]
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浏览/检索结果: 共24条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Impacts of Crop Type and Climate Changes on Agricultural Water Dynamics in Northeast China from 2000 to 2020 期刊论文  OAI收割 REMOTE SENSING, 2024, 卷号: 16, 期号: 6, 页码: 22 作者:  Xiao, Xingyuan;  Zhang, Jing;  Liu, Yaqun   |  收藏  |  浏览/下载：26/0  |  提交时间：2024/05/06 agricultural water use  irrigation water requirement  crop planting structure change  climatic change  spatiotemporally heterogeneous impacts  water-efficient management   The Impact of Climate Change and Grain Planting Structure Change on Irrigation Water Requirement for Main Grain Crops in Mainland China 期刊论文  OAI收割 LAND, 2022, 卷号: 11, 期号: 12, 页码: 22 作者:  Wang, Jiayue;  Xin, Liangjie;  Wang, Xue;  Jiang, Min   |  收藏  |  浏览/下载：33/0  |  提交时间：2023/01/30 water resources  climate change  planting structure change  agricultural irrigation water requirement   The Impact of Climate Change and Grain Planting Structure Change on Irrigation Water Requirement for Main Grain Crops in Mainland China 期刊论文  OAI收割 LAND, 2022, 卷号: 11, 期号: 12, 页码: 22 作者:  Wang, Jiayue;  Xin, Liangjie;  Wang, Xue;  Jiang, Min   |  收藏  |  浏览/下载：43/0  |  提交时间：2023/01/30 water resources  climate change  planting structure change  agricultural irrigation water requirement   Synthesis and anti-fibrotic effects of santamarin derivatives as cytotoxic agents against hepatic stellate cell line LX2 期刊论文  OAI收割 BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, 2021, 卷号: 41, 页码: 127994 作者:  Wang,Jin-Ping;  Li,Tian-Ze;  Huang,Xiao-Yan;  Geng,Chang-An;  Shen,Cheng   |  收藏  |  浏览/下载：17/0  |  提交时间：2022/04/02 Santamarin derivatives  Anti-fibrotic effects  HSC-LX2  Extracellular matrix  NF-KAPPA-B  SESQUITERPENE LACTONES  LIVER FIBROSIS  STRUCTURE REQUIREMENT  BAY LEAF  ACTIVATION   The effects of pulse electrodeposition parameters on morphology and formation of dual-layer Si-doped calcium phosphate coating on AZ31 alloy 期刊论文  OAI收割 Ceramics International, 2015, 卷号: 41, 期号: 1, 页码: 787-796 P. Wan; X. Qiu; L. L. Tan; X. M. Fan; K. Yang 收藏  |  浏览/下载：27/0  |  提交时间：2015/01/14 Pulse electrodeposition  Dual-layer structure  Silicon  Calcium  phosphate coating  AZ31 magnesium alloy  simulated body-fluid  in-vitro  substituted hydroxyapatite  biomedical  applications  magnesium alloys  silicon  bone  titanium  requirement  cartilage   Embedded image grabber and processing system based on camera link (EI CONFERENCE) 会议论文  OAI收割 2012 World Automation Congress, WAC 2012, June 24, 2012 - June 28, 2012, Puerto Vallarta, Mexico 作者:  Wang Z.;  Zhao Y.;  Zhao Y.;  Zhao Y.;  Wang Z. 收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25 In order to realize real-time measurement based on image  proposes a design project of embedded image grabber and processing system based on camera link interface. The system adopts FPGA+DSP structure design. DSP used to process the image and send out processing results to external. FPGA adopts modularize design. It contains camera link interface module  image memory module  DSP connection module and so on. The experiment results show that the system design flexibility  small cubage  high real-time image processing  and can fulfil the requirement of real-time measurement. 2012 TSI Press.   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：31/0  |  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.   Optimization analysis for radial support by finite elements method (EI CONFERENCE) 会议论文  OAI收割 2012 International Conference on Intelligent System and Applied Material, GSAM 2012, January 13, 2012 - January 15, 2012, Taiyuan, Shanxi, China 作者:  Wang Y. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 Primary mirror' surface figure is affected by supporting structure obviously. Especially for large-aperture telescope  the surface figure is significant because of primary mirror' self-weight. For the requirement of the usage  it's necessary to minimize the surface figure from self-weight by reasonable supporting scheme. The text optimized support point and force of radial support to minimize the surface figure by finite-element software. At the same time  it studied the relationship between support point and counterweight to reduce the weight of support structure. At last  it gave the optimal solution. (2012) Trans Tech Publications.   Tracking error modeling of the theodolite based on GRNN method (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Frontiers of Manufacturing and Design Science, ICFMD 2011, December 11, 2011 - December 13, 2011, Taichung, Taiwan 作者:  Li M. 收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25 To meet the requirement of high tracking accuracy as well as develop more reasonable evaluation method  in this paper  the General Regression Neural Network (GRNN) has been applied to build the tracking error model of the theodolite. First  we analyze the nonlinear factors in the theodolite. Second  we discuss the principle of GRNN  including its structure  the function as well as its priors. Third  we build the tracking error model based on GRNN and verify the model through the different parameters. The result indicated that the network model based on GRNN has high accuracy and good generalization ability. It could instead the real system to a certain extent. The research in this paper has important value to the engineering practice.   The analyze and design of focusing system for space camera (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 作者:  Yu T. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 In order to control the focal plane and guarantee the imaging quality of space camera  the focusing system was proposed. Firstly  the reasons of defocusing were analyzed and a solution method was given. Secondly  the system structure and operating principle were introduced. Thirdly  the system design was presented in detail. Finally  the system was experimented. Experimental results indicate that the defocusing amount of camera can be controlled below 10 um and the focusing system satisfies the requirement of system design. (2012) Trans Tech Publications  Switzerland.