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Product quality prediction based on RBF optimized by firefly algorithm

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Journal of Systems Engineering and Electronics 2024年第1期35卷 105-117页

作者： HAN Huihui WANG Jian CHEN sen YAN Manting College of Electronics and Information Engineering Tongji UniversityShanghai 201804China

With the development of information technology,a large number of product quality data in the entire manufacturing process is accumulated,but it is not explored and used *** traditional product quality prediction models have many disadvantages,such as high complexity and low *** overcome the above problems,we propose an optimized data equalization method to pre-process dataset and design a simple but effective product quality prediction model:radial basis function model optimized by the firefly algorithm with Levy flight mechanism(RBFFALM).First,the new data equalization method is introduced to pre-process the dataset,which reduces the dimension of the data,removes redundant features,and improves the data *** the RBFFALFM is used to predict product *** expe riments conducted on real-world product quality datasets validate that the new model RBFFALFM combining with the new data pre-processing method outperforms other previous me thods on predicting product quality.

关键词： product quality prediction data pre-processing radial basis function swarm intelligence optimization algorithm

Space weathering simulation and spectrum decoding

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Chinese Journal Of Geochemistry 2012年第2期31卷 128-135页

作者： HU sen LIN Yangting Key Laboratory of the Earth＇s Deep Interior Institute of Geology and Geophysics Chinese Academy of Science Beijing 100029 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

Visible and near-infrared spectra are routinely used to achieve mineral abundances and mineral chemistry of the global surfaces of the Moon and ***,these spectra can be significantly modified by space weathering,including micrometeorite impacting,solar wind implanting and cosmic ray *** this paper we report results of laser-bombarding experiments on the Jilin ordinary chondrite,simulating micrometeorite impacting on the surface of *** laser bombardment,the spectra became significantly redder and moderately darker. With the Modified Gaussian Model(MGM)method,the absorption band positions of olivine can be decoded from the modified spectra,which are correlated with their fayalite *** addition,a continuum of the modified spectra can be decoded,and its slope may be used to depict the degree of space ***,relative strengths of the absorption sub-bands of olivine and pyroxenes show significant variant after the bombardment, hence they cannot be used to estimate the relative abundances of high-Ca to low-Ca pyroxenes of the lunar surface and other matured surfaces of asteroids.

关键词：解码风化近红外光谱月球表面频谱仿真太空普通球粒陨石

Portal Cavernoma Cholangiopathy in Children and the Management Dilemmas

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Journal of Clinical and Translational Hepatology 2020年第1期8卷 61-68页

作者： Moinak sen Sarma Aathira Ravindranath Department of Pediatric Gastroenterology Sanjay Gandhi Post Graduate Institute of Medical SciencesLucknowUttar PradeshIndia

Portal cavernoma cholangiopathy(PCC)is one of the most harrowing complications of extrahepatic portal venous obstruc-tion,as it determines the long-term hepatobiliary *** symptomatic PCC is rare in children,asymptomatic PCC is as common as that in ***,there are major gaps in the literature with regard to the best imaging strategy and management modality in ***,natural history of PCC and effect of portosystemic shunt surgeries in children are *** PCC would lead to difficult or recalcitrant biliary strictures that will require endoscopic ther-apy or bilioenteric anastomosis,both of which are challenging in the presence of extensive *** are limited studies on the effect of portosystemic shunt surgeries on the outcome of PCC in children compared to *** this review,we aimed to collate all existing literature on PCC in childhood and also compare with adult *** highlight the difficul-ties of this disease to provide a comprehensive platform to foster further research on PCC exclusively in children.

关键词： Extra-hepatic portal vein obstruction Portal cavernoma cholangiopathy Portosystemic shunt

Development of the simulation platform between EAST plasma control system and the tokamak simulation code based on Simulink

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Plasma Science and Technology 2017年第3期19卷 98-107页

作者： sen WANG Qiping YUAN Bingjia XIAO School of Nuclear Science and Technology University of Science and Technology of China Hefei 230027 People's Republic of China Institute of Plasma Physics Chinese Academy of Sciences Hefei 230031 People's Republic of China

Plasma control system（PCS）,mainly developed for real-time feedback control calculation,plays a significant part during normal discharges in a magnetic fusion device,while the tokamak simulation code（TSC） is a nonlinear numerical model that studies the time evolution of an axisymmetric magnetized tokamak *** motivation to combine these two codes for an integrated simulation is specified by the facts that the control system module in TSC is relatively simple compared to PCS,and meanwhile,newly-implemented control algorithms in PCS,before applied to experimental validations,require numerical validations against a tokamak plasma simulator that TSC can act *** this paper,details of establishment of the integrated simulation framework between the EAST PCS and TSC are generically presented,and the poloidal power supply model and data acquisition model that have been implemented in this framework are described as *** addition,the correctness of data interactions among the EAST PCS,Simulink and TSC is clearly confirmed during an interface test,and in a simulation test,the RZIP control scheme in the EAST PCS is numerically validated using this simulation platform.

关键词： PCS TSC Simulink EAST plasma control

A Spleen Tyrosine Kinase’s Sky in Neuronal Degeneration

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Neuroscience Bulletin 2024年第2期40卷 273-276页

作者： Wan-Yun Zhang sen Lin Department of Neurology Xinqiao HospitalThe Second Afliated HospitalArmy Medical UniversityChongqing 400042China Chongqing Institute for Brain and Intelligence Guangyang Bay LaboratoryChongqing 400064China

With the growing elderly population,neurodegenerative disorders like Alzheimer's disease(AD)are emerging as a significant public health *** is widely acknowledged in the scientific community that the accumulation of neurotoxic aggregates,such as amyloid beta(Aβ),within the central nervous system is a major factor in the development of these ***,human genome-wide association studies have identified mutations in microglial receptors that may be linked to a number of neurodegenerative diseases[1].

关键词： Aβ Spleen Alzheimer

Coherent H^(∞)Control for Linear Quantum Systems With Uncertainties in the Interaction Hamiltonian

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IEEE/CAA Journal of Automatica Sinica 2021年第2期8卷 432-440页

作者： Chengdi Xiang Shan Ma sen Kuang Daoyi Dong the School of Automation Hangzhou Dianzi UniversityHangzhou 310018China the School of Automation Central South UniversityChangsha 410083China the Department of Automation University of Science and Technology of ChinaHefei 230027China the School of Engineering and Information Technology University of New South WalesCanberra ACT 2600Australia

This work conducts robust H^(∞)analysis for a class of quantum systems subject to perturbations in the interaction Hamiltonian.A necessary and sufficient condition for the robustly strict bounded real property of this type of uncertain quantum system is *** paper focuses on the study of coherent robust H^(∞)controller design for quantum systems with uncertainties in the interaction *** desired controller is connected with the uncertain quantum system through direct and indirect couplings.A necessary and sufficient condition is provided to build a connection between the robust H^(∞)control problem and the scaled H^(∞)control problem.A numerical procedure is provided to obtain coefficients of a coherent *** example is presented to illustrate the controller design method.

关键词： Coherent feedback control robust control uncertain quantum system

Real-Time Optimal State Estimation-Based Feedback Control for Stochastic Quantum Systems in the Non-Markovian Case

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Journal of Systems Science & Complexity 2023年第6期36卷 2274-2291页

作者： CONG Shuang ZHANG Jiaoyang KUANG sen HARRAZ Sajede Department of Automation University of Science and Technology of ChinaHefei230027China

This paper studies the real-time optimal state estimation-based feedback control for twolevel stochastic quantum systems in the non-Markovian *** system model is established by combining the time-convolutionless non-Markovian master equation and the stochastic master equation.A nonlinear filter based on the state-dependent Riccati equation is designed in order to achieve the realtime optimal estimation of quantum states.A quadratic function multiplied with an exponential term is selected as the Lyapunov function,and a continuous-time control law is deduced via the stochastic Lyapunov stability theorem to realize eigenstate feedback control based on real-time optimal state *** simulation results illustrate that the proposed control scheme is capable of steering the two-level quantum system from an arbitrary initial state to the desired eigenstate with a fidelity higher than 99%within a time of 3 a.u.

关键词： Lyapunov-based approach optimal nonlinear filter quantum feedback control stochastic quantum system

Model of Forming-Accretion on Blast Furnace Copper Stave and Industrial Application

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Journal of Iron and Steel Research International 2012年第7期19卷 1-5页

作者： WU Tong CHENG Su-sen School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China

Copper staves have been equipped on nearly all of BF （blast furnaces） with volume over than 1000 m3 in China since their introduction from abroad about more than 10 years ago. Because of short application and lack of experience, phenomena of thickened or naked of copper stave happen occasionally which influence production severely. So it is important to study the model of forming-accretion on BF copper stave and realize real-time monitoring of forming-accretion on different copper staves. Therefore, mathematic model of calculating accretion thickness by heat flow of BF is proposed, and the calculated results indicate that accretion thickness could be kept at a reasonable range of around 50 mm by controlling heat flux around 22.0 kW/mz. The monitoring program based on the model was applied to a certain BF in China successfully, and it is found that slip of BF near the inner wall is one of most important reasons that cause fluctuation of accretion thickness. During the period of scheduled maintenance of the certain BF, the thickness of accretion measured through the static pressure holes is in good accordance with the value calculated by the monitoring program, so the results calculated by the monitoring program can be used to guide industrial production

关键词： blast furnace copper stave forming-accretion monitor industrial application

Binormal Operator and *-Aluthge Transformation

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Acta Mathematica Sinica,English Series 2008年第8期24卷 1369-1378页

作者： Chang sen YANG Yan Feng DING College of Mathematics and Information Science He 'nan Normal University Xinxiang 453007 P. R. China

Let T = U｜T｜ be the polar decomposition of a bounded linear operator T on a Hilbert space. The transformation T = ｜T｜^1/2 U｜T｜^1/2 is called the Aluthge transformation and Tn means the n-th Aluthge transformation. Similarly, the transformation T（＊）=｜T＊｜^1/2 U｜T＊｜＆1/2 is called the ＊-Aluthge transformation and Tn^（＊） means the n-th ＊-Aluthge transformation. In this paper, firstly, we show that T（＊） = UV｜T^（＊）｜ is the polar decomposition of T（＊）, where ｜T｜^1/2 ｜T^＊｜^1/2 = V｜｜T｜^1/2 ｜T^＊｜^1/2｜ is the polar decomposition. Secondly, we show that T（＊） = U｜T^（＊）｜ if and only if T is binormal, i.e., [｜T｜, ｜T^＊｜]=0, where [A, B] = AB - BA for any operator A and B. Lastly, we show that Tn^（＊） is binormal for all non-negative integer n if and only if T is centered, and so on.

关键词： *-Aluthge transformation Aluthge transformation polar decomposition binormal operators centered operators