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Risk transmission evaluation for parallel construction of warships based on IFCM and the cloud model

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Journal of Systems Engineering and Electronics 2022年第6期33卷 1224-1237页

作者： GONG Jun hu tao YAO Lu Department of Management Engineering and Equipment Economics Naval University of EngineeringWuhan 430033China

To cope with multi-directional transmission coupling,spreading, amplification, and chain reaction of risks during multiproject parallel construction of warships, a risk transmission evaluation method is proposed, which integrates an intuitionistic cloud model with a fuzzy cognitive map. By virtue of expectancy Ex, entropy En, and hyper entropy He, the risk fuzziness and randomness of the knowledge of experts are organically combined to develop a method for converting bi-linguistic variable decision-making information into the quantitative information of the intuitionistic normal cloud(INC) model. Subsequently, the threshold function and weighted summation operation in the traditional fuzzy cognitive map is converted into the INC ordered weighted averaging operator to create the risk transmission model based on the intuitionistic fuzzy cognitive map(IFCM) and the algorithm for solving it. Subsequently, the risk influence sequencing method based on INC and the risk rating method based on nearness are proposed on the basis of Monte Carlo simulation in order to realize the mutual conversion of the qualitative and quantitative information in the risk evaluation *** analysis is presented to verify the effectiveness and practicality of the methods.

关键词： risk evaluation multi-project parallel intuitionistic fuzzy cognitive map(IFCM) intuitionistic normal cloud(INC)model warship construction.

CRD-CGAN:category-consistent and relativistic constraints for diverse text-to-image generation

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Frontiers of Computer Science 2024年第1期18卷 61-75页

作者： tao hu Chengjiang LONG Chunxia XIAO College of Intelligent Systems Science and Engineering Hubei Minzu UniversityEnshi 445000China School of Computer Science Wuhan UniversityWuhan 430072China Key Laboratory of Performing Art Equipment&System Technology Ministry of Culture and TourismBeijing 100007China Meta Reality Labs BurlingameCA94010USA

Generating photo-realistic images from a text description is a challenging problem in computer *** works have shown promising performance to generate synthetic images conditional on text by Generative Adversarial Networks(GANs).In this paper,we focus on the category-consistent and relativistic diverse constraints to optimize the diversity of synthetic *** on those constraints,a category-consistent and relativistic diverse conditional GAN(CRD-CGAN)is proposed to synthesize K photo-realistic images *** use the attention loss and diversity loss to improve the sensitivity of the GAN to word attention and ***,we employ the relativistic conditional loss to estimate the probability of relatively real or fake for synthetic images,which can improve the performance of basic conditional ***,we introduce a category-consistent loss to alleviate the over-category issues between K synthetic *** evaluate our approach using the Caltech-UCSD Birds-200-2011,Oxford 102 flower and MS COCO 2014 datasets,and the extensive experiments demonstrate superiority of the proposed method in comparison with state-of-the-art methods in terms of photorealistic and diversity of the generated synthetic images.

关键词： text-to-image diverse conditional GAN relativi-stic category-consistent

Advances in Treatment of Post-Traumatic Stress Disorder with Chinese Medicine

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Chinese Journal of Integrative Medicine 2021年第11期27卷 874-880页

作者： hu Guang-tao WANG Yong Department of Psychological Medicine Army 958th HospitalChongqing400039China Department of Traditional Chinese Medicine Southwest HospitalArmy Medical UniversityChongqing400038China

“Timely,near,and expectation”is the main principle of battlefield rescue for military combat stress reaction(CSR).Post-traumatic stress disorder(PTSD)is the most common form of CSR and a long-term persistent mental disorder that is caused by unusual threatening or catastrophic psychological *** medicine(CM)has abundant resources,is simple,easy to master,with few side *** article summarizes the cellular and animal experimental mechanisms of CM treatment on PTSD,suggesting that traditional Chinese herbs and acupuncture can protect brain functional areas,and adjust hypothalamus-pituitary-adrenal *** Chinese herbs and acupuncture have shown good anti-stress efficacy and fewer side effects in clinical application,which may improve the CSR in the battlefield.

关键词： combat stress reaction post-traumatic stress disorder Chinese medicine acupuncture treatment

Active Disturbance Rejection Control for PMLM Servo System in CNC Machining

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Journal of Systems Science & Complexity 2016年第1期29卷 74-98页

作者： GUO Jianxin XUE Wenchao hu tao Key Laboratory of Mathematics Mechanization Academy of Mathematic and Systems ScienceChinese Academy of Sciences Key Laboratory of Systems and Control Academy of Mathematics and Systems ScienceChinese Academy of Sciences

Uncertain friction is a key factor that influences the accuracy of servo system in CNC *** this paper,based on the principle of Active Disturbance Rejection Control(ADRC),a control method is proposed,where both the extended state observer(ESO) and the reduced order extended state observer(RESO) are used to estimate and compensate for the *** authors prove that both approaches ensure high accuracy in theory,and give the criterion for parameters *** authors also prove that ADRC with RESO performs better than that with ESO both in disturbance estimation and tracking *** simulation results on CNC machine show the effectiveness and feasibility of our control approaches.

关键词： Active disturbance rejection control CNC machine nonlinear friction parameter selection servo system

Particle filter based stochastic interference cancellation for frequency-selective MIMO channel equalization

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Journal of Systems Engineering and Electronics 2007年第3期18卷 476-483页

作者： Yang tao hu Bo Guo Xinyue Dept. of Electronics Engineering Fudan Univ. Shanghai 200433 P. R. China

To mitigate the effects of the previous symbol decision errors of a decision-feedback （DF） equalizer on the current decision, a particle filter （PF） based DF equalizer for frequency selective multiple-input-multiple-output （MIMO） channel is proposed. On the basis of the analyses of DF equalization for the MIMO wireless system, it is found that a stochastic interference cancellation （IC） scheme can be employed to prevent the error propagation in a severe space-time interference scenario. This is because the random rather than the deterministic scheme can reduce the probability of an error decision even if an error decision occurs. Besides, the signal-to-interference-plus-noise ratio （SINR） based IC order, which is obtained via pilot, can guarantee the optimality of the cancellation. The bit error rate （BER） performance of the proposed scheme is verified through simulation experiments under different multipath interference environment.

关键词： multiple-input-multiple-output particle filter pilot decision-feedback interference cancellation.

A catastrophic debris flow in the Wenchuan Earthquake area,July 2013：characteristics,formation,and risk reduction

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Journal of Mountain Science 2017年第1期14卷 15-30页

作者： hu tao huANG Run-qiu State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu 610059 China

In the Wenchuan Earthquake area,many co-seismic landslides formed blocking-dams in debris flow channels. This blocking and bursting of landslide dams amplifies the debris flow scale and results in severe catastrophes. The catastrophic debris flow that occurred in Qipan gully(Wenchuan,Southwest China) on July 11,2013 was caused by intense rainfall and upstream cascading bursting of landslide dams. To gain an understanding of the processes of dam bursting and subsequent debris flow scale amplification effect,we attempted to estimate the bursting debris flow peak discharges along the main gully and analyzed the scale amplification process. The results showed that the antecedent and triggering rainfalls for 11 July debris flow event were 88.0 mm and 21.6 mm,respectively. The event highlights the fact that lower rainfall intensity can trigger debris flows after the earthquake. Calculations of the debris flow peak discharge showed that the peak discharges after the dams-bursting were 1.17–1.69 times greater than the upstream peak discharge. The peak discharge at the gully outlet reached 2553 m^3/s which was amplified by 4.76 times in comparison with the initial peak discharge in the upstream. To mitigate debris flow disasters,a new drainage channel with a trapezoidal V-shaped cross section was proposed. The characteristic lengths(h1 and h2) under optimal hydraulic conditions were calculated as 4.50 m and 0.90 m,respectively.

关键词： Disaster characteristics Formation mechanisms Risk reduction Debris flow Wenchuan Earthquake Blocking dam

New estimates of scale heights and spiral structures for non-edge-on spiral galaxies

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Research in Astronomy and Astrophysics 2014年第7期14卷 869-874页

作者： tao hu Qiu-He Peng Department of Automation Shanghai University Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of SciencesYunnan Observatories Department of Astronomy Nanjing University

On the basis of Poisson＇s equation for the logarithmic perturbation of matter density, we provide improved estimates of scale heights and spiral structures for non-edge-on spiral galaxies by subtracting the surface brightness distributions from observed images. As examples, the non-edge-on spiral galaxies PGC 24996, which is face-on, and M31, which is inclined, are studied. The scale height, pitch angle and inclination angle of M31, our nearest neighbor, that are presented in this work, agree well with previous research.

关键词： galaxy: disk -- galaxies: fundamental parameters -- galaxies: spiral --galaxies: structure

Surface-mediated iron on porous cobalt oxide with high energy state for efficient water oxidation electrocatalysis

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Green Energy & Environment 2022年第4期7卷 662-671页

作者： Jingsha Li tao hu Changhong Wang Chunxian Guo Institute of Materials Science and Devices Suzhou University of Science and TechnologySuzhou215011China

Surface engineering of active materials to generate desired energy state is critical to fabricate high-performance heterogeneous ***, its realization in a controllable level remains challenging. Using oxygen evolution reaction(OER) as a model reaction, we report a surface-mediated Fe deposition strategy to electronically tailor surface energy states of porous Co_(3)O_(4)(Fe-pCo_(3)O_(4)) for enhanced activity towards OER. The Fe-pCo_(3)O_(4) exhibits a low overpotential of 280 mV to reach an OER current density of 100 mA cm^(-2), and a fast-kinetic behavior with a low Tafel slop of 58.2 mV dec^(-1), outperforming Co_(3)O_(4)-based OER catalysts recently reported and also the noble IrO_(2). The engineered material retains 100% of its original activity after operating at an overpotential of 350 m V for 100 h. A combination of theoretical calculations and experimental results finds out that the surface doped Fe promotes a high energy state and desired coordination environment in the near surface region, which enables optimized OER intermediates binding and favorably changes the rate-determining step.

关键词： Surficial Fe doping Cobalt oxides High energy state Water oxidation Oxygen evolution reactions

Bridging open source tools and Geoportals for interactive spatial data analytics

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Geo-Spatial Information Science 2019年第3期22卷 185-192页

作者： Bing She tao hu Xinyan Zhu Shuming Bao University of Michigan Ann ArborMIUSA Center for Geographical Analysis Harvard UniversityCambridgeMAUSA Geocomputation Center for Social Sciences Wuhan UniversityWuhanChina State Key Lab of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhanChina Collaborative Innovation Center of Geospatial Technology WuhanChina China Data Institute Ann ArborMIUSA

Geoportals have been the primary source of spatial information to researchers in diverse *** years have seen a growing trend to integrate spatial analysis and geovisual analytics inside *** could use the Geoportal to conduct basic analysis without offline *** practice,domain-specific analysis often requires researchers to integrate heterogeneous data sources,leverage new statistical models,or build their own customized *** tasks are increasingly being tackled with open source tools in programming languages such as Python or ***,it is unrealistic to incorporate the numerous open source tools in a Geoportal platform for data processing and *** work provides an exploratory effort to bridge Geoportals and open source tools through Python *** Geoportal demonstrated in this work is the Urban and Regional Explorer for China studies.A python package is provided to manipulate this platform in the local programming *** server side of the Geoportal implements a set of service endpoints that allows the package to upload,transform,and process user data and seamlessly integrate them into the existing datasets.A case study is provided that illustrated the use of this package to conduct integrated analyses of search engine data and baseline census *** work attempts a new direction in Geoportal development,which could further promote the transformation of Geoportals into online analytical workbenches.

关键词： Geoportal open source Python web GIS spatial analysis