检索结果-内蒙古大学图书馆

22nd International Conference on Electrical Machines and Systems (ICEMS)

作者： Che, Yanbo Xue, Siyuan He, Wei Bi, Hailian Liu, Liangliang Tianjin Univ Minist Educ Key Lab Smart Grid Tianjin Peoples R China State Grid Jiangxi Elect Power Res Inst Nanchang Jiangxi Peoples R China

ISBN: (纸本)9781728133980

A large number of high-power single-phase electric heating loads, represented by air conditioners entering into domestic consumption is easy to cause asymmetric distribution of three-phase loads in three-phase four-wire power supply system. It is difficult to popularize traditional post-treatment methods for three-phase unbalance problems because of their complicated control algorithm, lack of algorithm stability, and high cost of manufacturing or land occupation. In this paper, a three-phase unbalance allocation strategy is proposed, which combines hierarchical clustering method with traversal algorithm to divide users' air conditioners into three phases and reduce three-phase unbalance in the power grid, to reduce the difficulty of post-treatment of the three-phase unbalance problem. The allocation strategy for 50 air conditioner users is simulated and its effectiveness is given by comparison result.

关键词： com Air conditioner users load characteristics three-phase unbalance hierarchical clustering traversal algorithm

来源：评论

学校读者我要写书评

暂无评论

Line Measurement of Multi-Beam Sounding System Based on Annealing algorithm

Line Measurement of Multi-Beam Sounding System Based on Anne...

引用

2023 IEEE International Conference on Electrical, Automation and Computer Engineering, ICEACE 2023

作者： Yan, Xiaochen Lv, Lingfeng Xi, Rui Nanjing University of Aeronautics and Astronautics Nanjing China

ISBN: (纸本)9798350309614

For a group of parallel survey lines with sloping sea floor at a certain Angle to the horizontal plane, the total path of the route is different when the Angle projected by the normal direction of the slope changes. This paper studies the shortest path when the value of the Angle is taken. The possible interval of the shortest path is calculated by the set of all possible obtained Angle values through certain traversal calculation method, and then the trend of path change is analyzed by fitting calculation method, and the Angle value of the shortest path is analyzed by annealing algorithm. After several studies to eliminate errors, it is found that the path is shortest when the direction of the measured line is perpendicular to the normal projection. © 2023 IEEE.

关键词： angle set annealing algorithm fitting algorithm shortest path traversal algorithm

来源：评论

学校读者我要写书评

暂无评论

Volumetric extraction of porous materials based on octree algorithm

引用

Journal of Southeast University(English Edition) 2010年第4期26卷 537-540页

作者：罗守华李光顾宁东南大学生物科学与医学工程学院南京210096

Through the octree data structure analysis,a volumetric dataset of closed-cell porous materials is converted into a dataset of hierarchical octree nodes,and then the specific traversal search algorithm on the octree nodes is depicted in details,which is involved in six steps of the volume growth model and one step of the volume decomposition ***,the conditions of both the proceeding traversal and three possibilities of terminating are given,and the traversal algorithm of completeness is proved from a theoretical ***,using a simulated volumetric dataset of columnar pores,the extracting effectiveness of the octree traversal algorithm is *** results show that the volume and the distribution information of pores can be successfully extracted by the proposed algorithm,which builds a solid foundation for a more effective performance analysis of porous materials.

关键词： octree closed-cell porous materials volume of pores traversal algorithm

来源：评论

学校读者我要写书评

暂无评论

A novel framework for seamless mosaic of Cartosat-1 DEM scenes

引用

COMPUTERS & GEOSCIENCES 2021年 146卷 104619-104619页

作者： Datla, Rajeshreddy Mohan, C. Krishna Adv Data Proc Res Inst ADRIN Dept Space Signal Proc Div Akbar Rd Manovikas Nagar 500009 Secunderabad India Indian Inst Technol Hyderabad IITH) Dept Comp Sci & Engn Visual Learning & Intelligence Grp VIGIL Hyderabad 502285 India

Digital elevation model (DEM) is used as a source of elevation data in wide range of applications. The applications involving larger area than an individual DEM scene often need a mosaic of DEM scenes. A simple stitching exhibits seams along the borders of DEM scenes in the mosaic output. The presence of seam lines varies with the number of scenes in an overlapping region and their overlap extents. The conventional feathering-based blend method, by virtue of the method itself, considers only two input scenes in an instance of the mosaic process. This method requires a suitable ordering of the input DEM scenes, especially in the overlapping regions containing more than two scenes. In this paper, we propose a framework that automatically handles the multiple overlapping regions and creates a seamless mosaic of Cartosat-1 DEM scenes for a given region of interest. We use a tree data structure to arrange input DEM scenes hierarchically based on their metadata. A traversal algorithm is devised to establish an order of precedence among the DEM scenes. This determines a unique input sequence of DEM scenes during mosaic process. In addition, two variants of feathering-based blend method are formulated to handle all possible cases of the overlapping regions. The experiments have been conducted on Cartosat-1 DEM scenes over 1 degrees x 1 degrees region of interest. We analyze and compare our proposed methodology with average method and feathering-based blend method. We demonstrate that our framework exhibits a smooth transition of elevation values in the overlapping regions of the DEM mosaic output.

关键词： Cartosat-1 Digital elevation model Mosaic Feathering-based blending Order of precedence traversal algorithm Photogrammetry

来源：评论

学校读者我要写书评

暂无评论

Indirect solution modeling of melting behavior of SiO2 based on the image processing technology

引用

ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING 2024年第2期19卷 e3028-e3028页

作者： Lu, Cunhao Zhang, Yi Zhang, Jiayi Sun, Weixiang Xia, Anying Zhang, Mingli Chen, Jian Yangzhou Univ Sch Mech Engn Huayang Weststr 196 Yangzhou 225127 Jiangsu Peoples R China Shandong Jinyu Elect Technol Co LTD Innovat Workshop Jinan Shandong Peoples R China McGill Univ Montreal Neurol Inst McGill Ctr Integrat Neurosci Montreal PQ Canada Shandong Technol & Business Univ Sch Comp Sci Yantai Shandong Peoples R China

The utilization of tempered blast-furnace slag through the direct fiber forming process to produce high-value thermal insulation materials offers a dual benefit: it efficiently utilizes the latent heat in the unused slag and significantly increases the value of blast-furnace slag utilization. However, measuring the melting properties of iron slag at high temperatures is challenging. In this study, the melting behavior of SiO2 in a high-temperature molten pool was investigated. We employ dynamic visual data (video stream) captured via a non-contact charge coupled device video recording system to extract SiO2 contours through image processing. The change in image centroid characteristics is used to establish a convolution function relationship, and MATLAB's traversal search algorithm determines the centroid position of SiO2. Given that SiO2 is proportionate to crucible pixels, the area of the SiO2 is calculated through pixel statistics within these contours. A new indirect method is then proposed to process image information to obtain SiO2 volume and mass at different time points. An exponential fitting yields the melting rate function of SiO2. Finally, this indirect method has been compared with shape from shading, quantitative characterization, and dimensional analysis techniques. Besides, the strengths and limitations of each method have been discussed. Our findings reveal that the indirect solution method presented here boasts straightforward calculation steps and imposes minimal image format requirements, which provides theoretical and technical support for the direct fiber forming process of blast-furnace slag.

关键词： image processing indirect solution method K-means clustering algorithm traversal algorithm

来源：评论

学校读者我要写书评

暂无评论

Scalable simulation of programmable photonic integrated waveguide meshs

引用

OPTICS AND LASER TECHNOLOGY 2022年 156卷

作者： Zhang, Juan Ji, Zhengyong Wu, Zhiyuan Wang, Yang Shanghai Univ Key Lab Specialty Fiber Opt & Opt Access Networks Sch Commun & Informat Engn Shanghai 200444 Peoples R China Chinese Acad Sci Shanghai Inst Opt & Fine Mech Shanghai 201800 Peoples R China Univ Chinese Acad Sci Ctr Mat Sci & Optoelect Engn Beijing 100049 Peoples R China

Programmable photonic integrated waveguide mesh (PPIWM), which is similar to the field-programmable gate array (FPGA) in electronics, can be reconfigured to form a variety of mesh topologies to provide different signal processing functions flexibly. With the development of large-scale PPIWM, multipath routing is becoming more and more complex. Automatic and efficient calculation of the transmission characteristics between arbitrary input and output ports is very essential to realize the simulation and theoretical analysis task for the PPIWMs. In this paper, a simple and effective calculation method for the transmission characteristics of PPIWMs with any scale is proposed. Compared with the available technologies, this method can greatly reduce the time of solving the total scattering matrix in the large-scale PPIWM and has the advantage of easy programming. Typical simulation examples are given to verify the effectiveness of this method. The generality and high efficiency of this method can help us analyze increasingly large and complex reconfigurable photonic circuits with a wide variety of functions.

关键词： Programmable photonic integrated waveguide mesh (PPIWM) Total scattering matrix Graph theory traversal algorithm

来源：评论

学校读者我要写书评

暂无评论

Rule Reasoning in Incomplete Information System based on Rough Set Theory

Rule Reasoning in Incomplete Information System based on Rou...

引用

2011 4th IEEE International Conference on Computer Science and Information Technology(ICCSIT 2011)

作者： Zhou lianjing Li Ping Yao zhiying li zhixiang School of Management and Economic Beijing Institute of Technology

ISBN: (纸本)9781612848334

The study to rule reasoning of incomplete information system is rare in rough set theory, and an incomplete information system still has the missing data after attribute reduction. Based on this situation, knowledge category and value core are redefined to the incomplete information system under the reflexive binary relation, and a traversal algorithm is proposed to find most effective rules. Comparison the rule reasoning of equivalent relation and that of tolerance relation in the process of empirical analysis, the research shows that different reflexive binary relation leads to different rules for the same incomplete information system, which provides a new theoretical basis for rule reasoning of rough set theory.

关键词： rough set incomplete information system reflexive binary relation traversal algorithm

来源：评论

学校读者我要写书评

暂无评论

Design and implementation of self-test system in signal generators

Design and implementation of self-test system in signal gene...

引用

2015 IEEE 12th International Conference on Electronic Measurement & Instruments

作者： Zuo Yongfeng Tai Xin Science and Technology on Ele ctronic Test & Measurement Laboratory The 41st Research Institute of CETC

A flexible self-test function becomes crucial in the processes of debugging, production and user site testing in modern intelligent signal generators. In this paper, a design and implementation method of self-test system in signal generators are elaborated with respect to the overall architecture, driver program, data structure, self-test node binary tree traversal algorithm and software processing flow, etc.. In addition, the availability of the proposed self-test system design method is verified via the actual circuit and software of a certain type of signal generator.

关键词： signal generator self-test data structure traversal algorithm

来源：评论

学校读者我要写书评

暂无评论

Research on the Design Problem of Maximum Wave Energy Output Power

Research on the Design Problem of Maximum Wave Energy Output...

引用

作者： Chaoyi Yang Zihan Yang Wentao Ji Yan Lu School of Mechanical and Electrical Engineering Sanjiang University

With the development of economy, energy and environment problems have become a big problem in today's society. To realize sustainable development and protect ecological environment has become the consensus of all countries in the world. Wave energy, as an important Marine renewable resource, is more widely distributed than conventional energy, with abundant energy storage and considerable application value. In this paper, based on the analysis of the heave and pitch motion of the wave energy device in seawater, the motion states of the float and vibrator from static to heave and pitch motion are obtained through the force analysis of the float and vibrator and the establishment of differential equations. The maximum output power of the wave energy device is analyzed and discussed by adjusting the damping coefficient of the damper and other related parameters.

关键词： Equation of Newtonian mechanics traversal algorithm genetic algorithm

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：