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A multi-modular shunt active power filter system and its novel fault-tolerant strategy based on split-phase control and real-time bus communication

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Frontiers of Information Technology & Electronic Engineering 2018年第9期19卷 1166-1179页

作者： qun-wei xu Jin-xiang ZHAN Long XIAO Guo-zhu CHEN College of Electrical Engineering Zhejiang Universit State Grid Zhejiang Electric Power Research Institut

We first present a new multi-modular shunt active power filter system suitable for large-capacity compensation. Each module in the system has the same circuit topology, system functionality, and controller design, to achieve coordination control among the modules. The module＇s reference signals are obtained by multiplying the total reference signal by the respective distribution coefficient. Next, a novel fault-tolerant approach is proposed based on split-phase control in the a-b-c frame and real-time bus communication. When a phase fault occurs, instead of halting the whole module, the proposed strategy isolates only the faulted bridge arm, and then recalculates the distribution coefficients and transfers the compensation capacity to the same phases of the other normal modules, resulting in a continuous operation of the faulted module and optimization of the remaining usable power devices. Through steady-state analysis of the post-fault circuit, the system stability and control reliability are proven to be high enough to guarantee its engineering application value. Finally, a prototype is established and experimental results show the validity and feasibility of the proposed multi-modular system and its fault-tolerant control strategy.

关键词： Shunt active power filter Fault-tolerant topology Split-phase control Bus communication

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A multiplex cytokine score for the prediction of disease severity in pediatric hematology/oncology patients with septic shock

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A multiplex cytokine score for the prediction of disease sev...

Quantum public-key crypto via EPR pairs

2013年国家级“恶性血液系统疾病诊治新进展”学习班暨学术年会

作者： Xiao-Jun xu Yong-Min Tang Hua Song Shi-Long Yang wei-qun xu Shu-Wen Shi Ning-Zhao Chan Liao Division of Hematology-oncology Children's Hospital of Zhejiang University School of Medicine Key Laboratory of Reproductive Genetics(Zhejiang University) Ministry of Education

Although many inflammatory cytokines are prognostic in sepsis,the utility of cytokines in evaluating disease severity in pediatric hematology/oncology patients with septic shock was rarely *** the other hand,a single particular cytokine is far from ideal in guiding therapeutic intervention,but combination of multiple biomarkers improves the *** this prospective observational study,111 episodes of septic shock in pediatric hematology/oncology patients were enrolled from 2006 through *** samples were taken for inflammatory cytokine measurement by cytometric bead array(CBA) technology at the initial onset of septic ***(IL)-6 and IL-10 were significantly elevated in majority of patients,while tumor necrosis factor(TNF)-αand interferon(IFN)-γwere markedly increased in patients with high pediatric index of mortality 2(PIM2) score and *** the four cytokines paralleled the PIM2 score and differentially correlated with hemodynamic disorder and fatal *** pediatric multiplex cytokine score(PMCS),which integrated the four cytokines into one score system,was related to hemodynamic disorder and mortality as well,but showed more powerful prediction ability than each of the four *** was an independent predictive factor for fatal outcome,presenting similar discriminative power with PIM2,with accuracy of 0.83(95%CI,0.71-0.94).In conclusion,this study develops a cytokine scoring system based on CBA technique,which performs well in disease severity and fatality prediction in pediatric hematology/oncology patients with septic shock.

关键词： septic shock cytokine outcome assessment hematology/oncology child

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 58-63页

作者： Xiang-qun Fu Hong-wei Li Jian-Hong Shi Tan Li Wan-Su Bao Henan Key Laboratory of Quantum Information and Cryptography Information Engineering University Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China

With the development of quantum computing technology, quantum public-key cryptography is gradually becoming an alternative to the existing classical public-key cryptography. This paper designs a quantum trapdoor one-way function via EPR pairs and quantum measurements. Based on this, a new quantum public-key cryptosystem is presented, which offers forward security,and can resist the chosen-plaintext attack and chosen-ciphertext attack. Compared with the existing quantum public-key cryptos,eavesdropping can be automatically detected in this new quantum public-key cryptosystem under a necessary condition, which is also detailed in the paper.

关键词： quantum public-key crypto trapdoor one-way function EPR pairs

Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： Jie Wang wei Wang xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

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SensFL:Privacy-Preserving Vertical Federated Learning with Sensitive Regularization

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 385-404页

作者： Chongzhen Zhang Zhichen Liu Xiangrui xu Fuqiang Hu Jiao Dai Baigen Cai wei Wang School of Automation and Intelligence Beijing Jiaotong UniversityBeijing100044China Shuohuang Railway Development Co. Ltd.National Energy GroupCangzhou062350China Beijing Key Laboratory of Security and Privacy in Intelligent Transportation School of Computer Science and TechnologyBeijing Jiaotong UniversityBeijing100044China

In the realm of Intelligent Railway Transportation Systems,effective multi-party collaboration is crucial due to concerns over privacy and data *** Federated Learning(VFL)has emerged as a promising approach to facilitate such collaboration,allowing diverse entities to collectively enhance machine learning models without the need to share sensitive training ***,existing works have highlighted VFL’s susceptibility to privacy inference attacks,where an honest but curious server could potentially reconstruct a client’s raw data from embeddings uploaded by the *** vulnerability poses a significant threat to VFL-based intelligent railway transportation *** this paper,we introduce SensFL,a novel privacy-enhancing method to against privacy inference attacks in ***,SensFL integrates regularization of the sensitivity of embeddings to the original data into the model training process,effectively limiting the information contained in shared *** reducing the sensitivity of embeddings to the original data,SensFL can effectively resist reverse privacy attacks and prevent the reconstruction of the original data from the *** experiments were conducted on four distinct datasets and three different models to demonstrate the efficacy of *** results show that SensFL can effectively mitigate privacy inference attacks while maintaining the accuracy of the primary learning *** results underscore SensFL’s potential to advance privacy protection technologies within VFL-based intelligent railway systems,addressing critical security concerns in collaborative learning environments.

关键词： Vertical federated learning privacy defenses

Initial frequency of CD34+/CD38cells is not correlated with minimal residual disease level in 73 Chinese children with B-cell precursor acute lymphoblastic leukemia

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Initial frequency of CD34+/CD38cells is not correlated with ...

Photoinduced radical sulfur dioxide insertion with asymmetric cyclization of alkenes: accessing β-chiral sulfones bearing S-stereocentric cyclic sulfinamides

2012年江浙沪儿科学术年会暨浙江省医学会儿科学分会学术年会、儿内科疾病诊治新进展国家级学习班

作者： Jian-Hua Feng Yong-Min Tang Hong-Qiang Shen Hua Song Shi-Long Yang Shu-Wen Shi wei-qun xu Yong-Min Tang Hong-Qiang Shen Division of Hematology-Oncology Key Laboratory of Reproductive Genetics (Zhejiang University) Ministry of Education Children’s Hospital Zhejiang University School of Medicine

Despite considerable improvement in prognosis, approximately 20% of children with acute lymphoblastic leukemia (ALL) have relapses. Recently, the proportion of CD34+/CD38cells at diagnosis, which may imply the number of leukemia stem and progenitor cells, has been demonstrated to correlate with MRD level following therapy in childhood ALL. In the current study, the populations of CD34+/CD38cells were examined by flow cytometry in 73 patients with childhood B-cell precursor (BCP) ALL treated according to the NPCAC97 protocol and correlated with the level of MRD at day 22 of induction therapy. We found a complete lack of correlation between the prevalence of CD34+/CD38+ cells at diagnosis and MRD level at day 22 (p = 0.4759 with a Spearman rank correlation coefficient of r = 0.0848). Our results suggest that the real clinical impact of the CD34+/CD38fraction in childhood BCP-ALL remains to be addressed.

关键词： Acute lymphoblastic leukemia Leukemia stem cell Minimal residual disease (MRD) Prognosis Childhood

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Science China Chemistry 2025年第01期 257-263页

作者： Jiapian Huang Chenxin Wang xu Wang Xiaoyu Zhou wei Xiao Jie Wu School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies Taizhou University State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences School of Chemistry and Chemical Engineering Henan Normal University

The generation of various β-chiral sulfones bearing chiral cyclic sulfinamides through photoredox-catalyzed sulfur dioxide insertion with asymmetric radical cyclization is described. This method features a broad substrate scope and excellent stereospecificity. Computational studies reveal that the dispersion interaction between sulfinyl group and CH2SO2Ph group plays a crucial role in the stereoselectivity control.

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A low redox potential and long life organic anode material for sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 557-564页

作者： Zhi Li Yang wei Kang Zhou Xin Huang Xing Zhou Jie xu Taoyi Kong Junwei Lucas Bao Xiaoli Dong Yonggang Wang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Fudan University Department of Chemistry Boston College School of Materials Science and Engineering Anhui University of Technology

Sodium-ion batteries （SIBs） with organic electrodes are an emerging research direction due to the sustainability of organic materials based on elements like C,H,O,and sodium ***,organic electrode materials for SIBs are mainly used as cathodes because of their relatively high redox potentials（>1 V）.Organic electrodes with low redox potential that can be used as anode are ***,a novel organic anode material （tetrasodium 1,4,5,8-naphthalenetetracarboxylate,Na4TDC） has been developed with low redox potential （<0.7 V） and excellent cyclic *** three-sodium storage mechanism was demonstrated with various in-situ/ex-situ spectroscopy and theoretical calculations,showing a high capacity of 208 mAh/g and an average decay rate of merely 0.022%per ***,the Na4TDC-hard carbon composite can further acquire improved capacity and cycling stability for 1200 cycles even with a high mass loading of up to 20 mg *** pairing with a thick Na3V2（PO4）3cathode (20.6 mg cm-2),the as-fabricated full cell exhibited high operating voltage （2.8 V）,excellent rate performance and cycling stability with a high capacity retention of 88.7% after 200 cycles,well highlighting the Na4TDC anode material for SIBs.

关键词： Organic anode material Low redox potential Composite anode Sodium-ion batteries

儿童急性淋巴细胞性白血病微小残留病监测的预后意义

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中华儿科杂志 2010年第3期48卷 180-185页

作者：徐晓军汤永民宋华石淑文杨世隆沈红强魏健徐卫群潘斌华赵芬英浙江大学医学院附属儿童医院血液肿瘤科杭州310003

目的研究儿童急性淋巴细胞性白血病（ALL）化疗过程中，不同时问点监测的不同微小残留病（MRD）水平的预后意义。方法对102例ALL患儿进行MRD监测研究，分别在患儿诱导化疗开始后第15天、第29天、第3个月、第6个月、第12个月进行MRD监测... 详细信息

目的研究儿童急性淋巴细胞性白血病（ALL）化疗过程中，不同时问点监测的不同微小残留病（MRD）水平的预后意义。方法对102例ALL患儿进行MRD监测研究，分别在患儿诱导化疗开始后第15天、第29天、第3个月、第6个月、第12个月进行MRD监测。根据患儿初诊时免疫表型特征，采用流式细胞术检测不同的四色单克隆抗体组合。常用的抗体组合包括CD45CD19CD34CD10和CD45CD19CD34CD20等。结果102例ALL患儿的5年总体生存（OS）率和无事件生存（EFS）率分别为（86．9±3．4）％和（79．9±4．0）％，共12例患儿复发。在第15天、29天、3个月、6个月和12个月，分别有14．3％、43．9％、39．1％、39．7％和45．6％的患儿处于MRD阴性（MRD〈10^-4）。其中MRD水平能在1年内达到阴性的患儿的长期存活率明显高于MRD持续阳性的患儿[5年EFS：（92．5±3．2）％vs．（58．3±8．6）％，P〈0．001]。各时间点上，化疗后第15天时MRD≥1012[（79．84-10．3）％vs．（28．6±17．1）％，P〈0．001]、第29天时MRD≥1013[（88．3±4．9）％vs．（51．3±14．4）％，P〈0．003]、第3个月[（92．4±5．1）％vs．（65．5±7．5）％，P〈0．015]、6个月[5-year EFS rates（96．3±3．6）％vs.（65．4±7．5）％，P〈0．003]及第12个月[（100．0±0．0）％郴．（67．7±8．4）％，P〈0．002]时MRD≥10。的患儿的5年EFS率明显较差。而第15天时MRD≥10。是独立的不良预后因素。结论采用流式细胞术动态监测MRD水平能有效地评估ALL患儿的预后，而不同时间点上具有预后意义的MRD水平并不相同。

关键词：白血病,淋巴细胞,急性流式细胞术预后儿童微小残留病

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