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A MATLAB-Based Numerical and GUI Implementation of Cross-Gradients Joint Inversion of Gravity and Magnetic Data

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Journal of Software Engineering and Applications 2015年第2期8卷 93-101页

作者： Junjie Zhou Xingdong Zhang Chunxiao Xiu Key Laboratory of Geo-Detection (China University of Geosciences Beijing) Ministry of Education Beijing China School of Geophysics and Information Technology China University of Geosciences Beijing China

The cross-gradients joint inversion technique has been applied to multiple geophysical data with a significant improvement on compatibility, but its numerical implementation for practical use is rarely discussed in the literature. We present a MATLAB-based three-dimensional cross-gradients joint inversion program with application to gravity and magnetic data. The input and output information was examined with care to create a rational, independent design of a graphical user interface (GUI) and computing kernel. For 3D visualization and data file operations, UBC-GIF tools are invoked using a series of I/O functions. Some key issues regarding the iterative joint inversion algorithm are also discussed: for instance, the forward difference of cross gradients, and matrix pseudo inverse computation. A synthetic example is employed to illustrate the whole process. Joint and separate inversions can be performed flexibly by switching the inversion mode. The resulting density model and susceptibility model demonstrate the correctness of the proposed program.

关键词： Joint Inversion Cross Gradients Gravity and Magnetic Data Numerical Implementation graphic User Interface

Computer Tomography and Ultrasonography Image Registration Based on the Cooperation of GPU and CPU

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Journal of Signal and Information Processing 2013年第3期4卷 80-85页

作者： Ying-Chih Lin Chien-Liang Huang Chin-Sheng Chen Wen-Chung Chang Yu-Jen Chen Chia-Yuan Liu Department of Electrical Engineering National Taipei University of Technology Department of Internal Medicine Mackay Memorial Hospital Department of Radiation Oncology Mackay Memorial Hospital Graduate Institute of Automation Technology National Taipei University of Technology

Image registration is wildly used in the biomedical image, but there are too many textures and noises in the biomedical image to get a precise image registration. In order to get the excellent registration performance, it needs more complex image processing, and it will spend expensive computation cost. For the real time issue, this paper proposes edge gradient direction image registration applied to Computer Tomography(CT) image and Ultrasonography (US) image based on the cooperation of graphic Processor Unit (GPU) and Central Processor Unit (CPU). GPU can significantly reduce the computation time. First, the CT image slice is extracted from the CT volume by the region growing and the interpolation algorithm. Secondly, the image pre-processing is employed to reduce the image noises and enhance the image features. There are two kinds of the image pre-processing algorithms invoked in this paper: 1) median filtering and 2) anisotropic diffusion. Last but not least, the image edge gradient information is obtained by Canny operator, and the similarity measurement based on gradient direction is employed to evaluate the similarity between the CT and the US images. The experimental results show that the proposed architecture can distinctively improve the efficiency and are more suitably applied to the real world.

关键词： Image Registration graphic Processor Computer Tomography Ultrasonography Canny Operator

The Combination of Coagulation-Flocculation Method and the SCWO in the Waste Water Treatment Problems

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International Journal of Analytical Mass Spectrometry and Chromatography 2013年第1期1卷 48-54页

作者： Elmira Shakirovna Gayazova Rustem Aytuganovich Usmanov Farid Mukhamedovich Gumerov Sergey Vladimirovich Friedland Zufar Ibrahimovich Zaripov Farizan Rakibovich Gabitov Rashid Zagitovich Musin Kazan National Research University Kazan Russia

The influence of the degree of wastewater coagulation-flocculation and supercritical water oxidation (SCWO) methodsisconsidered. The regularities of changes in the composition of the purity of the reagents used and the parameters of SCWO are established. Based on the results of chromatographic analysis of the effluent after washing the mass rape, it is found that the achievement of the required parameters is achieved by treatment with a combination of coagulation-flocculation method and supercritical water oxidation (SCWO). The necessity of combining techniques is insufficient oxidation in SCWO lignin conducted at T = 400oC and P = 25 MPa, T = 500oC and P = 30 MPa. Effluent treatment of process of styrene and propylene oxide“Nizhnekamskneftekhim”conducted by the SCWO, using an oxidant (H2O2), and without an oxidant showed the possibility of cleaning without the use of an oxidizing agent in the process parameters T = 500oC, P = 30 MPa.

关键词： Supercritical Water Oxidation (SCWO) Wastewater Treatment Production of Pulp Coagulation Flocculation Chemical Axigen Demand (COD) Chromato graphic Analysis

A Study on Flexible Fixture CAD Methods in FMS

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Journal of China Textile University(English Edition) 1999年第3期16卷 90-92页

作者：陈冰冰秦鹏飞

The significance of study on flexible fixture CAD methods is summarized. Based on the AUTOCAD software, represented with slot Modular fixture dements, the flexible fixture CAD methods are discussed, such as part representative model,feature modeling,design method,structure of the graphic library, optimization of assembly drawing structure, optimal choice of interactive function, and CAD Information database management.

关键词： FMS flexible fixture CAD graphic library assembly.

Impact of the Opto-Geometric Parameters on the Band Diagram and Transmission and Reflection Spectrum of the Bragg Structure

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Optics and Photonics Journal 2013年第2期3卷 184-189页

作者： Iman Ouahab Leila Dekkiche Rafah Naoum Telecommunications and Digital Signal Processing Laboratory Institute of Electronic University Djillali Liabes Sidi Bel Abbes Algerie

Knowledge of the band gap and transmission and reflection spectrum of a photonic crystal is essential elements for their design. A graphical interface that quickly determines the banding pattern and spectrum based on the Plane Wave Method (PWM) and coupled modes method (CMM) respectively is created. It is used to explore the behavior of a Bragg structure with the ability to easily vary the important parameters such as refractive indices, number and thickness of layers.

关键词： Bragg Structure PWM CMM graphic User Interface Photonic Band Gap Spectrum of Transmission and Reflection

Multi-Objective Optimization of Pilots’ FFS Recurrent Training Problem

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Engineering（科研） 2012年第10期4卷 662-667页

作者： Mingang Gao Institute of policy and Management Chinese Academy of Sciences China

Two multi-objective programming models are built to describe Pilots’ full flight simulator (FFS) recurrent training (PFRT) problem. There are two objectives for them. One is the best matching of captains and copilots in the same aircraft type. The other is that pilots could attend his training courses at proper month. Usually the two objectives are conflicting because there are copilots who will promote to captains or transfer to other aircraft type and new trainees will enter the company every year. The main theme in the research is to find the final non-inferior solutions of PFRT problem. Graph models are built to help to analyze the problem and we convert the original problem into a longest-route problem with weighted paths. An algorithm is designed with which we can obtain all the non-inferior solutions by a graphic method. A case study is present to demonstrate the effectiveness of the algorithm as well.

关键词： PFRT Problem Multi-Objective Programming Bipartite Graph Longest-Route Problem graphic Method

Development of an Improved GUI Automation Test System Based on Event-Flow Graph

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Journal of Software Engineering and Applications 2008年第1期1卷 38-43页

作者： Yongzhong Lu Danping Yan Songlin Nie Chun Wang Huazhong University of Science & Technology

A more automated graphic user interface (GUI) test model, which is based on the event-flow graph, is proposed. In the model, a user interface automation API tool is first used to carry out reverse engineering for a GUI test sample so as to obtain the event-flow graph. Then two approaches are adopted to create GUI test sample cases. That is to say, an improved ant colony optimization (ACO) algorithm is employed to establish a sequence of testing cases in the course of the daily smoke test. The sequence goes through all object event points in the event-flow graph. On the other hand, the spanning tree obtained by deep breadth-first search (BFS) approach is utilized to obtain the testing cases from goal point to outset point in the course of the deep regression test. Finally, these cases are applied to test the new GUI. Moreover, according to the above-mentioned model, a corresponding prototype system based on Microsoft UI automation framework is developed, thus giving a more effective way to improve the GUI automation test in Windows OS.

关键词： Automated Software Testing graphic User Interface Event-Flow Graph Regression Testing Ant Colony Optimization UI Automation

Theoretical and experimental biology in one<br>—A symposium in honour of Professor Kuo-Chen Chou’s 50th anniversary and Professor Richard Giegé’s 40th anniversary of their scientific careers

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Journal of Biomedical Science and Engineering 2013年第4期6卷 435-442页

作者： Sheng-Xiang Lin Jacques Lapointe Department of Biochemistry Microbiology and Bioinformatics and PROTEO Laval University Quebec Canada Laboratory of Molecular Endocrinology and Oncology Research Center of Laval University Hospital Center (CHUQ-CHUL) and PROTEO Laval University Quebec Canada

It has been a dream that theoretical biology can be extensively applied in experimental biology to accelerate the understanding of the sophiscated movements in living organisms. A brave assay and an excellent example were represented by enzymology, in which the well-established physico-chemistry is used to describe, to fit, to predict and to improve enzyme reactions. Before the modern bioinformatics, the developments of the combination of theoretical biology and experimental biology have been mainly limited to various classic formulations. The systematic use of graphic rules by Prof. Kuo-Chen Chou and his co-workers has significantly facilitated to deal with complicated enzyme systems. With the recent fast progress of bioinformatics, prediction of protein structures and various protein attributes have been well established by Chou and co-workers, stimulating the experimental biology. For example, their recent method for predicting protein subcellular localization (one of the important attributes of proteins) has been extensively applied by scientific colleagues, yielding many new results with thousands of citations. The research by Prof. Chou is characterized by introducing novel physical concepts as well as powerful and elegant mathematical methods into important biomedical problems, a focus throughout his career, even when facing enormous difficulties. His efforts in 50 years have greatly helped us to realize the dream to make “theoretical and experimental biology in one”. Prof. Richard Giege is well known for his multi-disciplinary research combining physics, chemistry, enzymology and molecular biology. His major focus of study is on the identity of tRNAs and their interactions with aminoacyl-tRNA synthetases (aaRS), which are of critical importance to the fidelity of protein biosynthesis. He and his colleagues have carried out the first crystallization of a tRNA/aaRS complex, that between tRNAAsp and AspRS from yeast. The determination of the complex structure c

关键词： Theoretical Biology Experimental Biology Chou’s graphic Rules in Enzymology Prediction of Protein Attributes Chou’s Invariance Theorem Macromolecular Crystallogenesis tRNA Identity on Aminoacylation Specificity Physico-Biochemistry

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星载单频GPS实时精密定轨模型研究

大地测量与地球动力学 2020年第4期40卷 371-375页

作者：郭磊王甫红武汉大学测绘学院武汉市430079

采用星载单频GPS伪距和相位观测数据,构建单频伪距相位无电离层组合(graphic)消除电离层延迟误差的影响,同时建立伪模糊度参数随机模型,吸收广播星历中的轨道和钟差误差。对国内外8颗低轨卫星星载GPS实测数据进行单频实时定轨模拟解算,... 详细信息

采用星载单频GPS伪距和相位观测数据,构建单频伪距相位无电离层组合(graphic)消除电离层延迟误差的影响,同时建立伪模糊度参数随机模型,吸收广播星历中的轨道和钟差误差。对国内外8颗低轨卫星星载GPS实测数据进行单频实时定轨模拟解算,结果表明,使用graphic组合作为主要观测值,实时定轨位置精度达到0.44~0.55m,速度精度达到0.37~0.63mm/s,相比于传统的基于双频伪距观测值的实时定轨方式,定轨精度提升40%左右。根据本文星载单频GPS定轨模型和算法,仅使用低成本的单频GPS观测即可以实现低轨卫星高精度实时定轨。

关键词：微小卫星星载单频GPS graphic 伪模糊度实时精密定轨