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Reaction pathway led by silicate structure transformation on decomposition of CaSiO_3 in alkali fusion process using NaOH 被引量:4
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作者 赵昌明 王国承 +3 位作者 李胜利 艾新港 王子睿 翟玉春 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2015年第11期3827-3833,共7页
The mechanism of decomposition of calcium inosilicate(CaSiO_3) synthesized through chemical deposition method using analytical reagent NaSiO_3·9H_2O and CaCl_2 during the alkali fusion process using NaOH was inve... The mechanism of decomposition of calcium inosilicate(CaSiO_3) synthesized through chemical deposition method using analytical reagent NaSiO_3·9H_2O and CaCl_2 during the alkali fusion process using NaOH was investigated by Raman spectroscopy in situ,X-ray diffraction and Fourier transform infrared spectrometer(FTIR).The results show that the tetrahedral silica chains within CaSiO_3 are gradually disrupted and transformed into nesosilicate with the isolated SiO_4 tetrahedra at the beginning of the alkali fusion process.The three intermediates including Ca_2SiO_4,Na_2CaSiO_4 and Na_2SiO_3 appear simultaneously in the decomposition of CaSiO_3,while the final products are Ca(OH)_2 and Na_4SiO_4.It can be concluded that there exist two reaction pathways in the alkali fusion process of CaSiO_3:one is ion exchange,the other is in the main form of the framework structure change of silicate.The reaction pathway is led by silicate structure transformation in the alkali fusion process. 展开更多
关键词 alkali fusion process CaSiO3 INTERMEDIATE reaction pathway
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Analysis of Fusion Process Model—Case Study
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作者 Rupinder Kaur Jyotsna Sengupta 《Journal of Software Engineering and Applications》 2012年第3期119-128,共10页
Fusion Process Model is a software process model to enhance the software development process. Fusion process model have five fundamental phases and one fusion process controller to control and co-ordinate the overall ... Fusion Process Model is a software process model to enhance the software development process. Fusion process model have five fundamental phases and one fusion process controller to control and co-ordinate the overall development process. Fusion Process Model uses 3C-Model to generalize the process of solving the problem in each phase. 3C-Model, which helps in implementing component based development approach and provides firmer control over the software development process. Because of the component driven approach, the risk associated with cost and time is limited to component only and ensure the overall quality of software system, reduce the development cost and time by considering the changing requirements of customer, risk assessment, identification, evaluation and composition of relative concerns at each phase of development process. We have implemented Fusion Process Model to the design of a real world information system and evaluated this implementation with the initial project estimation. 展开更多
关键词 fusion process MODEL 3C-Model process MODEL COMPONENT DRIVEN Approach
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A New Approach to Software Development Fusion Process Model
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作者 Rupinder Kaur Jyotsna Sengupta 《Journal of Software Engineering and Applications》 2010年第10期998-1004,共7页
There are several software process models that have been proposed and are based on task involved in developing and maintaining software product. The large number of software projects not meeting their expectation in t... There are several software process models that have been proposed and are based on task involved in developing and maintaining software product. The large number of software projects not meeting their expectation in terms of functionality, cost, delivery schedule and effective project management appears to be lacking. In this paper, we present a new software fusion process model, which depicts the essential phases of a software project from initiate stage until the product is retired. Fusion is component based software process model, where each component implements a problem solving model. This approach reduces the risk associated with cost and time, as these risks will be limited to a component only and ensure the overall quality of software system by considering the changing requirements of customer, risk assessment, identification, evaluation and composition of relative concerns at each phase of development process. 展开更多
关键词 process MODEL fusion process MODEL COMPONENT Driven Development APPROACH 3C-Model
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ELECTROFUSION OF IBRS2 CELLS AND THE STUDY OF THEIR FUSION PROCESS
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作者 郑强 赵南明 《Science China Chemistry》 SCIE EI CAS 1989年第3期303-313,共11页
IBRS2 epithelial cells in monolayer culture fused at a very high frequency when exposed to high-voltage electric pulsing fields. Exposure to four repetitive electric pulses of about 1.7 kilovolts per centimeter with a... IBRS2 epithelial cells in monolayer culture fused at a very high frequency when exposed to high-voltage electric pulsing fields. Exposure to four repetitive electric pulses of about 1.7 kilovolts per centimeter with a duration of 100 microseconds caused more than 90 percent of the cells to become fused (multinucleate) when 1 millimolar magnesium was present in the pulsing medium. Magnesium and calcium ions in the pulsing medium had a very strong effect on the electrofusion of IBRS2 cells. Magnesium could increase not only the electrofusion yield but also the stability of the cells under the conditions of electrofusion. In contrast, calcium inhibited electrofusion and decreased the stability of the cells. Careful microscopic observation revealed the electrofusion of IBRS2 cells to be very complex, dynamic process undergoing many interesting changes. A possible explanation for the process and mechanism of electrofusion of IBRS2 cells was proposed in agreement with the experimental observation. 展开更多
关键词 ELECTROfusion IBRS2 CELLS fusion process.
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Formation Process of Magnetized Fusion Target on the YingGuang 1 Device
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作者 李璐璐 贾月松 +6 位作者 孙奇志 刘伟 刘正芬 秦卫东 李军 池原 杨显俊 《Chinese Physics Letters》 SCIE CAS CSCD 2016年第4期80-83,共4页
Magnetized target fusion is an alternative method to fulfill the goal of controlled fusion, which combines advan- tages of both magnetic confinement fusion and inertial confinement fusion since its parameter space lie... Magnetized target fusion is an alternative method to fulfill the goal of controlled fusion, which combines advan- tages of both magnetic confinement fusion and inertial confinement fusion since its parameter space lies between the two traditional ways. Field reversed configuration (FFtC) is a good candidate of magnetized targets due to its translatable, compressible, high /3 and high energy density properties. Dynamic formation process of high density FFtC is observed on the YingGuang 1 device for the first time in China. The evolution of a magnetic field is detected with magnetic probes, and the compression process can be clearly seen from images taken with a high-speed multi-frame CCD camera. The process is also studied with two-dimensional magneto hydrodynamic code MPF-2D theoretically, and the results agree well with the experiment. Combining the experimental data and the theoretical analysis, the length of the formed FRC is about 39 cm, the diameter is about 2-2. 7cm, the average density is 1.3× 1016 cm-3, and the average temperature is 137eV. 展开更多
关键词 of Formation process of Magnetized fusion Target on the YingGuang 1 Device is for FRC in ICF high with on
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Image Processing on Geological Data in Vector Format and Multi-Source Spatial Data Fusion
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作者 Liu Xing Hu Guangdao Qiu Yubao Faculty of Earth Resources, China University of Geosciences, Wuhan 430074 《Journal of China University of Geosciences》 SCIE CSCD 2003年第3期278-282,共5页
The geological data are constructed in vector format in geographical information system (GIS) while other data such as remote sensing images, geographical data and geochemical data are saved in raster ones. This paper... The geological data are constructed in vector format in geographical information system (GIS) while other data such as remote sensing images, geographical data and geochemical data are saved in raster ones. This paper converts the vector data into 8 bit images according to their importance to mineralization each by programming. We can communicate the geological meaning with the raster images by this method. The paper also fuses geographical data and geochemical data with the programmed strata data. The result shows that image fusion can express different intensities effectively and visualize the structure characters in 2 dimensions. Furthermore, it also can produce optimized information from multi-source data and express them more directly. 展开更多
关键词 geological data GIS-based vector data conversion image processing multi-source data fusion
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2D Fusion Simulations and Experimental Confirmations of Print Paths Using Composite Particles with Particle Method for Fused Filament Fabrication
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作者 Yuto Imaeda Akira Todoroki +2 位作者 Ryosuke Matsuzaki Masahito Ueda Yoshiyasu Hirano 《Open Journal of Composite Materials》 CAS 2022年第4期111-130,共20页
Printing short fibre/thermoplastic composites using the fused filament fabrication method sometimes creates a gap between print paths. In this study, the two-dimensional moving particle semi-implicit method for liquid... Printing short fibre/thermoplastic composites using the fused filament fabrication method sometimes creates a gap between print paths. In this study, the two-dimensional moving particle semi-implicit method for liquid simulation was applied to simulate the print-path fusion process. The three-dimensional movement of the nozzle was simulated using the sliding motion of the nozzle. The method was applied to the printing of short carbon fibre/polyamide-6 composites, and the simulation results were compared with those of experiments. The simulated results of the cross-sectional configuration agreed well with the experimental results. This will enable the optimization of printing process parameters thus reducing the gap between print paths. 展开更多
关键词 Carbon Fiber Thermoplastic Resin Computational Modelling Short Carbon Fiber Three-Dimensional Printer fusion process
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A Simulation Study of Hierarchical Bayesian Fusion Spatial Small Area Model for Binary Outcome under Spatial Misalignment
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作者 Kindie Fentahun Muchie Anthony Kibira Wanjoya Samuel Musili Mwalili 《Open Journal of Statistics》 2021年第6期993-1009,共17页
<p> <span><span style="font-family:""><span style="font-family:Verdana;">Simulation (stochastic) methods are based on obtaining random samples </span><spa... <p> <span><span style="font-family:""><span style="font-family:Verdana;">Simulation (stochastic) methods are based on obtaining random samples </span><span style="color:#4F4F4F;font-family:Simsun;white-space:normal;background-color:#FFFFFF;"><span style="font-family:Verdana;">&theta;</span><sup><span style="font-family:Verdana;">5</span></sup></span><span style="font-family:Verdana;"></span><span style="font-family:Verdana;"> </span><span><span style="font-family:Verdana;"> </span><span><span style="font-family:Verdana;">from the desired distribution </span><em><span style="font-family:Verdana;">p</span></em><span style="font-family:Verdana;">(</span><span style="color:#4F4F4F;font-family:Verdana;white-space:normal;background-color:#FFFFFF;">&theta;</span><span style="font-family:Verdana;"></span><span style="font-family:Verdana;">)</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">and estimating the expectation of any </span></span><span><span style="font-family:Verdana;">function </span><em><span style="font-family:Verdana;">h</span></em><span style="font-family:Verdana;">(</span><span style="color:#4F4F4F;font-family:Verdana;white-space:normal;background-color:#FFFFFF;">&theta;</span><span style="font-family:Verdana;"></span><span style="font-family:Verdana;">)</span><span style="font-family:Verdana;">. Simulation methods can be used for high-dimensional dis</span></span><span style="font-family:Verdana;">tributions, and there are general algorithms which work for a wide variety of models. Markov chain Monte Carlo (MCMC) methods have been important </span><span style="font-family:Verdana;">in making Bayesian inference practical for generic hierarchical models in</span><span style="font-family:Verdana;"> small area estimation. Small area estimation is a method for producing reliable estimates for small areas. Model based Bayesian small area estimation methods are becoming popular for their ability to combine information from several sources as well as taking account of spatial prediction of spatial data. In this study, detailed simulation algorithm is given and the performance of a non-trivial extension of hierarchical Bayesian model for binary data under spatial misalignment is assessed. Both areal level and unit level latent processes were considered in modeling. The process models generated from the predictors were used to construct the basis so as to alleviate the problem of collinearity </span><span style="font-family:Verdana;">between the true predictor variables and the spatial random process. The</span><span style="font-family:Verdana;"> performance of the proposed model was assessed using MCMC simulation studies. The performance was evaluated with respect to root mean square error </span><span style="font-family:Verdana;">(RMSE), Mean absolute error (MAE) and coverage probability of corres</span><span style="font-family:Verdana;">ponding 95% CI of the estimate. The estimates from the proposed model perform better than the direct estimate.</span></span></span></span> </p> <p> <span></span> </p> 展开更多
关键词 Simulation Small Area Estimation Hierarchical Bayesian Spatial Misalign-ment fusion process
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Investigation of system structure and information processing mechanism for cognitive skywave over-the-horizon radar 被引量:8
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作者 Xia Wu Jianwen Chen Kun Lu 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2016年第4期797-806,共10页
Based on the cognitive radar concept and the basic connotation of cognitive skywave over-the-horizon radar(SWOTHR), the system structure and information processingmechanism about cognitive SWOTHR are researched. Amo... Based on the cognitive radar concept and the basic connotation of cognitive skywave over-the-horizon radar(SWOTHR), the system structure and information processingmechanism about cognitive SWOTHR are researched. Amongthem, the hybrid network system architecture which is thedistributed configuration combining with the centralized cognition and its soft/hardware framework with the sense-detectionintegration are proposed, and the information processing framebased on the lens principle and its information processing flowwith receive-transmit joint adaption are designed, which buildand parse the work law for cognition and its self feedback adjustment with the lens focus model and five stages informationprocessing sequence. After that, the system simulation andthe performance analysis and comparison are provided, whichinitially proves the rationality and advantages of the proposedideas. Finally, four important development ideas of futureSWOTHR toward "high frequency intelligence information processing system" are discussed, which are scene information fusion, dynamic reconfigurable system, hierarchical and modulardesign, and sustainable development. Then the conclusion thatthe cognitive SWOTHR can cause the performance improvement is gotten. 展开更多
关键词 cognitive radar skywave over-the-horizon radar system structure intelligence information processing information fusion target detection
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Contourlet transform for image fusion using cycle spinning 被引量:10
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作者 Kun Liu Lei Guo Jingsong Chen 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2011年第2期353-357,共5页
A new method for image fusion based on Contourlet transform and cycle spinning is proposed. Contourlet transform is a flexible multiresolution, local and directional image expansion, also provids a sparse representati... A new method for image fusion based on Contourlet transform and cycle spinning is proposed. Contourlet transform is a flexible multiresolution, local and directional image expansion, also provids a sparse representation for two-dimensional piece-wise smooth signals resembling images. Due to lack of translation invariance property in Contourlet transform, the conventional image fusion algorithm based on Contourlet transform introduces many artifacts. According to the theory of cycle spinning applied to image denoising, an invariance transform can reduce the artifacts through a series of processing efficiently. So the technology of cycle spinning is introduced to develop the translation invariant Contourlet fusion algorithm. This method can effectively eliminate the Gibbs-like phenomenon, extract the characteristics of original images, and preserve more important information. Experimental results show the simplicity and effectiveness of the method and its advantages over the conventional approaches. 展开更多
关键词 image processing image fusion Contourlet transform cycle spinning.
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Multisensor image fusion algorithm using nonseparable wavelet frame transform 被引量:1
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作者 Li Zhenhua Jing Zhongliang Wang Hong Sun Shaoyuan 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2005年第4期728-732,共5页
A muitisensor image fusion algorithm is described using 2-dimensional nonseparable wavelet frame (NWF) transform. The source muitisensor images are first decomposed by the NWF transform. Then, the NWF transform coef... A muitisensor image fusion algorithm is described using 2-dimensional nonseparable wavelet frame (NWF) transform. The source muitisensor images are first decomposed by the NWF transform. Then, the NWF transform coefficients of the source images are combined into the composite NWF transform coefficients. Inverse NWF transform is performed on the composite NWF transform coefficients in order to obtain the intermediate fused image. Finally, intensity adjustment is applied to the intermediate fused image in order to maintain the dynamic intensity range. Experiment resuits using real data show that the proposed algorithm works well in muitisensor image fusion. 展开更多
关键词 MULTISENSOR image fusion image processing nonseparable wavelet frame transform.
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Monitoring Computer Numerical Control Machining Progress Based on Information Fusion 被引量:7
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作者 TONG Liang YAN Ping LIU Fei 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2011年第6期1074-1082,共9页
To cope with the market demand dynamically,enterprise needs to obtain the production status of work in process real-timely,but the information of machining progress has feature of uncertainty and can not reflect the s... To cope with the market demand dynamically,enterprise needs to obtain the production status of work in process real-timely,but the information of machining progress has feature of uncertainty and can not reflect the status of production field effectively.In this work,to overcome the ineffectiveness of computer numerical control(CNC) machining progress information extraction and its application restriction in practice because of heterogeneous system of CNC machine,based on information fusion by analyzing multi-sources information,estimating CNC machining status and predicting the machining progress through tracking tool coordinates,a CNC machining progress monitoring method is presented.The multi-sources heterogeneous information includes machining path,real-time spindle power information,manual input data and tool position.On the method of obtaining this multi-sources heterogeneous information,the method which helps explore numerical control(NC) program,monitor spindle power of CNC,collect human-computer interaction(HCI) information,obtain real-time tool coordinates and express the knowledge concerned in this field is analyzed; The decision rule of CNC machining status in the way of fusing multi-sources information in manufacturing process is summarized,as well as the machining progress tracking method in accordance with real-time tool coordinates and machining path is presented.Finally,the method discussed is proved feasible by the verification of machining progress tracking through simulation experiment.The proposed research realizes the effective integration of CNC machining progress information,and enables enterprises an efficient way to share CNC information and configure CNC resources optimally. 展开更多
关键词 machining progress information fusion machining path CNC machining process track
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On-line detection system of weld-based rapid prototyping process based on structured light 被引量:2
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作者 李永哲 张广军 +1 位作者 熊俊 吴林 《China Welding》 EI CAS 2013年第1期1-5,共5页
In order to realize the closed-loop control for rapid prototyping process based on gas metal arc welding, the geometric parameters of weld beads should be detected. In this study, a vision sensor system consisting of ... In order to realize the closed-loop control for rapid prototyping process based on gas metal arc welding, the geometric parameters of weld beads should be detected. In this study, a vision sensor system consisting of a linear laser projector and a CCD camera was designed to collect images of weld beads. Then, an image processing approach which combines with a Gaassian filter and an improved gravity method was used to extract the centerline of a light stripe based on VC ++. Feature points of the centerline were identical directly by means of an image fusion algorithm. Experimental results show that image fusion is an effective approach to measure the width and height of the weld bead with high accuracy. This method can identify beads effectively in multi-pass welding and avoid designing different modes to suit all kinds of shapes. 展开更多
关键词 weld-based rapid prototyping linear structured light image processing image fusion
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基于Process Simulate的工业机器人信息物理融合系统 被引量:7
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作者 朱文华 陶涵 +2 位作者 蔡宝 顾鸿良 王佳 《制造技术与机床》 北大核心 2022年第2期9-13,共5页
工业机器人在进行新工艺开发时一般存在周期长、调试复杂等常见问题。以ABB的IRB120型工业机器人作为研究对象,基于Process Simulate工业仿真平台,采用了工业机器人信息物理融合的方法,实现了工业机器人实体与虚拟模型深度融合的功能,... 工业机器人在进行新工艺开发时一般存在周期长、调试复杂等常见问题。以ABB的IRB120型工业机器人作为研究对象,基于Process Simulate工业仿真平台,采用了工业机器人信息物理融合的方法,实现了工业机器人实体与虚拟模型深度融合的功能,通过数据的通信、采集与传输实现了二者的同步运动功能,进一步分析了虚拟模型相对于实体工业机器人的时间延迟误差。分析结果表明,二者的时间延迟误差在工业允许范围内,说明该技术可为智能制造提供有效的解决方案,可大幅缩短工艺开发周期、降低工艺开发成本,同时该技术也是数字孪生概念下的具体工程应用,技术本身具有较高的工程推广价值。 展开更多
关键词 工业机器人 process Simulate 信息物理融合 数字孪生
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Vision Enhancement Technology of Drivers Based on Image Fusion 被引量:1
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作者 陈天华 周爱德 +1 位作者 李会希 邢素霞 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2015年第5期495-501,共7页
The rise of urban traffic flow highlights the growing importance of traffic safety.In order to reduce the occurrence rate of traffic accidents,and improve front vision information of vehicle drivers,the method to impr... The rise of urban traffic flow highlights the growing importance of traffic safety.In order to reduce the occurrence rate of traffic accidents,and improve front vision information of vehicle drivers,the method to improve visual information of the vehicle driver in low visibility conditions is put forward based on infrared and visible image fusion technique.The wavelet image confusion algorithm is adopted to decompose the image into low-frequency approximation components and high-frequency detail components.Low-frequency component contains information representing gray value differences.High-frequency component contains the detail information of the image,which is frequently represented by gray standard deviation to assess image quality.To extract feature information of low-frequency component and high-frequency component with different emphases,different fusion operators are used separately by low-frequency and high-frequency components.In the processing of low-frequency component,the fusion rule of weighted regional energy proportion is adopted to improve the brightness of the image,and the fusion rule of weighted regional proportion of standard deviation is used in all the three high-frequency components to enhance the image contrast.The experiments on image fusion of infrared and visible light demonstrate that this image fusion method can effectively improve the image brightness and contrast,and it is suitable for vision enhancement of the low-visibility images. 展开更多
关键词 image fusion vision enhancement infrared image processing wavelet transform(WT)
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A Cold Fusion-Casimir Energy Nano Reactor Proposal
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作者 Mohamed S. El Naschie 《World Journal of Nano Science and Engineering》 2015年第2期49-56,共8页
Using a compact heap of Fullerene nano particle moduli of a nano matrix device we propose that by maximizing the Casimir forces between these particles as a desirable effect, we can achieve a gradual rather than a sud... Using a compact heap of Fullerene nano particle moduli of a nano matrix device we propose that by maximizing the Casimir forces between these particles as a desirable effect, we can achieve a gradual rather than a sudden implosion pressure. This we expect will result in a mini holographic universe from which energy can be extracted in a way constituting a nano energy reactor functioning effectively on a hybrid principle somewhere between a Casimir effect and a cold fusion process. 展开更多
关键词 NANO Reacter CASIMIR Effect COLD fusion process
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Development of the Data Processing and Analysis System Framework for ICF Experiments
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作者 杨冬 虞孝麒 张弛 《Plasma Science and Technology》 SCIE EI CAS CSCD 2005年第3期2872-2874,共3页
An idea is presented about the development of a data processing and analysis system for ICF experiments, which is based on an object oriented framework. The design and preliminary implementation of the data processing... An idea is presented about the development of a data processing and analysis system for ICF experiments, which is based on an object oriented framework. The design and preliminary implementation of the data processing and analysis framework based on the ROOT system have been completed. Software for unfolding soft X-ray spectra has been developed to test the functions of this framework. 展开更多
关键词 initial confinement fusion data processing and analysis object oriented framework ROOT soft X-ray spectra
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Feature fusion method for edge detection of color images 被引量:4
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作者 Ma Yu Gu Xiaodong Wang Yuanyuan 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2009年第2期394-399,共6页
A novel feature fusion method is proposed for the edge detection of color images. Except for the typical features used in edge detection, the color contrast similarity and the orientation consistency are also selected... A novel feature fusion method is proposed for the edge detection of color images. Except for the typical features used in edge detection, the color contrast similarity and the orientation consistency are also selected as the features. The four features are combined together as a parameter to detect the edges of color images. Experimental results show that the method can inhibit noisy edges and facilitate the detection for weak edges. It has a better performance than conventional methods in noisy environments. 展开更多
关键词 color image processing edge detection feature extraction feature fusion
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无人机多光谱影像的小麦倒伏信息多特征融合检测研究 被引量:4
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作者 朱文静 冯展康 +4 位作者 戴世元 张平平 嵇文 王爱臣 魏新华 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 2024年第1期197-206,共10页
为探究多特征融合方法在作物倒伏领域快速精准识别中的适用性,利用无人机获取多田块冠层尺度的不同倒伏率麦田多光谱数据,对原始倒伏图像进行图像拼接、辐射校正、几何校正等预处理,并利用重归一化差值植被指数和阴影指数分别剔除土壤... 为探究多特征融合方法在作物倒伏领域快速精准识别中的适用性,利用无人机获取多田块冠层尺度的不同倒伏率麦田多光谱数据,对原始倒伏图像进行图像拼接、辐射校正、几何校正等预处理,并利用重归一化差值植被指数和阴影指数分别剔除土壤和阴影背景,提取小麦倒伏DSM模型和植被指数分别与多光谱图像进行多特征图像主成分变换融合,筛选差异性较大的纹理特征,采用支持向量机(SVM)、人工神经网络(ANN)和最大似然法(MLC)监督分类模型对多光谱和DSM融合图像、多光谱和归一化植被指数(NDVI)融合图像、多光谱图像和纹理特征图像进行监督分类,并采用总体精度(OA)、 Kappa系数和提取误差综合评价各监督模型的分类性能和倒伏提取精度。分类结果表明:各监督分类方法在不同倒伏区域提取结果建模效果趋势一致,SVM和ANN整体提取精度高于MLC,在高倒伏区域,多光谱与NDVI融合图像的SVM监督模型(OA:92.63%, Kappa系数:0.85,提取误差:1.11%)提取效果最好;在中倒伏区域,多光谱与DSM融合图像的SVM监督模型(OA:90.35%, Kappa系数:0.79,提取误差:9.34%)提取效果最好;在低倒伏区域,均值纹理特征图像的ANN监督模型(OA:91.05%, Kappa系数:0.82,提取误差:8.20%)提取结果较好。本研究将DSM模型、植被指数、纹理特征与多光谱图像进行融合对比,并对多特征融合方法能否高精度有效提取小麦倒伏信息进行了探究,结果表明无人机多光谱遥感结合特征融合技术能有效提取小麦倒伏面积,提取效果优于单特征小麦倒伏图像。本研究结果可为助力小麦倒伏灾情调查数据的精确获取方法提供参考。 展开更多
关键词 无人机遥感 图像处理 多光谱 特征融合 倒伏 小麦
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A Modified Multi-data Fusion Method Based on D-S Theory 被引量:1
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作者 姚景顺 杨世兴 《Defence Technology(防务技术)》 SCIE EI CAS 2008年第4期278-280,共3页
The D-S evidential reasoning algorithm is invalid when the evidence is completely contradicted. Therefore,a modified algorithm is proposed based on the elemental correlation and the influence of elemental weights in t... The D-S evidential reasoning algorithm is invalid when the evidence is completely contradicted. Therefore,a modified algorithm is proposed based on the elemental correlation and the influence of elemental weights in the evidence. The modified algorithm is more powerful ability to rectify errors and less computational complexity in the circumstance of multi-evidence fusion processing than those of the D-S evidential reasoning algorithm. 展开更多
关键词 信息处理 D-S推理 计算机 证据
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