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Speciation characterization and coagulation of poly-silica-ferric-chloride:The role of hydrolyzed Fe(Ⅲ) and silica interaction

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Journal of Environmental sciences 2011年第5期23卷 749-756页

作者： Jian Shi Yan Zhang Kaiyun Zou Feng Xiao nantong university Nantong 226007 China. E-mail: shijianchuyu @ *** Key Laboratory of Environmental Water Chemistry Ecological Environment Research Center of Chinese Academy of Science Beijing 100085 China

The highly efficient inorganic polymer flocculants （IPFs） of the ferric-silica system is a new and promising coagulant. Interactions between ferric species and silica play a large part in the coagulation of suspensions. These effects are quite distinct from those associated with polymeric or colloid silica. However, although these species are key to coagulation efficiency, they have not been comprehensively discussed. A new type of coagulant, poly-silica-ferric-chloride （PFSC）, was synthesized by co-polymerization and characterized by time complexation spectroscopy and photon correlation spectroscopy. Compared with traditional ferric salt, the results indicated that PFSC had a higher molecular weight, lesser positive charge, lower Feb and higher Fec. The higher the Si/Fe ratio, the higher the silica and lower the silicac found. The PFSC with appropriate polysilica acid not only obtained better coagulation/flocculation efficiency in turbidity removal, enhanced the flocculation index （FI） and provided less residual ferric, it also lowered water treatment costs compared to traditional ferric salt. Results showed that PFSC could remove colloid particles in water by charge neutralization and sweeping, adsorption bridging mechanism.

关键词： coagulation inorganic polymer flocculant PFSC species distribution residual ferric

Past and recent advances in sugarcane cytogenetics

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The Crop Journal 2023年第1期11卷 1-8页

作者： Kai Wang Hui Zhang Haris Khurshid Ayman Esh Caiwen Wu Qinnan Wang Nathalie Piperidis School of Life sciences Nantong UniversityNantong 226019JiangsuChina Sugar Research Australia Mackay 4740Australia Institute of Nanfan&Seed Industry Guangdong Academy of SciencesGuangzhou 510316GuangdongChina Sugarcane Institute Yunnan Academy of Agricultural SciencesKaiyuan 661600YunnanChina Sugar Crops Research Institute Agriculture Research CenterGiza 12111Egypt Oilseeds Research Program National Agricultural Research CentreIslamabad 44000Pakistan

The Saccharum genus comprises species with large and variable chromosome numbers, leading to challenges in genomic studies and breeding improvement. Cytogenetics, including classical and molecular approaches, has played a central role in deciphering the genome structure, classification, and evolution of the genus Saccharum. The application of fluorescence in situ hybridization using oligonucleotide probes significantly improved our understanding of the complex genomes of Saccharum species. This paper reviews the application and progress of cytogenetic techniques in Saccharum. Future applications of cytogenetics are discussed, as they could benefit both genomic studies and breeding of sugarcane as well as other plants with complex genomes.

关键词： Cytogenetics Sugarcane FISH Chromosome Oligo-FISH

Two-point resistance of an m×n resistor network with an arbitrary boundary and its application in RLC network

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Chinese Physics B 2016年第5期25卷 95-105页

作者：谭志中 Department of Physics Nantong University

A rectangular m × n resistor network with an arbitrary boundary is investigated, and a general resistance formula between two nodes on an arbitrary axis is derived by the Recursion-Transform（RT） method, a problem that has never been resolved before, for the Green＇s function technique and the Laplacian matrix approach are inapplicable to it. To have the exact solution of resistance is important but it is difficult to obtain under the condition of arbitrary boundary. Our result is directly expressed in a single summation and mainly composed of characteristic roots, which contain both finite and infinite cases. Further, the current distribution is given explicitly as a byproduct of the method. Our framework can be effectively applied to RLC networks. As an application to the LC network, we find that our formulation leads to the occurrence of resonances at h_1= 1-cosφ_i-sinφ_icotnφ_i. This somewhat curious result suggests the possibility of practical applications of our formulae to resonant circuits.

关键词： rectangular network exact solution RT method complex impedance

Event-triggered sampling and fault-tolerant control co-design based on fault diagnosis observer

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Journal of Systems Engineering and Electronics 2018年第1期29卷 176-186页

作者： QIU Aibing ZHANG Jing JIANG Bin GU Juping School of Electrical Engineering Nantong University School of Automation Nanjing University of Science and Technology College of Automation Engineering Nanjing University of Aeronautics and Astronautics

A co-design scheme of event-triggered sampling mechanism and active fault tolerant control(FTC) is developed. Firstly,a fault diagnosis observer is designed to estimate both the fault and the state simultaneously by using the event-triggered sampled output. Some H∞constraints between the estimation errors and the event-triggered sampling mechanism are established to ensure the estimation accuracy. Then, based on the constraints and the obtained fault information, an event-triggered detector and a static fault tolerant controller are co-designed to guarantee the stability of the faulty system and to reduce the sensor communication ***, the problem of the event detector and dynamic FTC co-design is also investigated. Simulation results of an unstable batch reactor are finally provided to illustrate the effectiveness of the proposed method.

关键词： event-triggered sampling fault estimation active fault tolerant control(FTC) co-design

Ultra-Low Breakdown Voltage of Field Ionization in Atmospheric Air Based on Silicon Nanowires

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Plasma science and Technology 2013年第11期15卷 1081-1087页

作者：陈云张健 Key Laboratory of Polar Materials and Devices Ministry of EducationDepartment of Electrical Engineering East China Normal University School of Electronics and Information Nantong University

Classic field ionization requires extremely high positive electric fields, of the order of a few million volts per centimeter. Here we show that field ionization can occur at dramatically lower fields on the electrode of silicon nanowires （SiNWs） with dense surface states and large field enhancement factor. A field ionization structure using SiNWs as the anode has been investigated, in which the SiNWs were fabricated by improved chemical etching process. At room temperature and atmospheric pressure, breakdown of the air is reproducible with a fixed anode-to-cathode distance of 0.5 μm. The breakdown voltage is -38 V, low enough to be achieved by a batterypowered unit. Two reasons can be given for the low breakdown voltage. First, the gas discharge departs from the Paschen＇s law and the breakdown voltage decreases sharply as the gap distance falls in μm range. The other reason is the large electric field enhancement factor （β） and the high density of surface defects, which cause a highly non-uniform electric field for field emission to occur.

关键词： silicon nanowires gas discharge field ionization field enhancement factor

CD93 and GIPC expression and localization during central nervous system inflammation

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Neural Regeneration Research 2014年第22期9卷 1995-2001页

作者： Chun Liu Zhichao Cui Shengjie Wang Dongmei Zhang Experimental Animal Center Key Laboratory of Inflammation and Molecular Drug Targets of Jiangsu ProvinceNantong University Department of Pathogen Biology Medical School of Nantong University

CD93 and GAIP-interacting protein, C termius （GIPC） have been shown to interactively alter phagocytic processes of immune cells. CD93 and GIPC expression and localization during cen-tral nervous system inflammation have not yet been reported. In this study, we established a rat model of brain inlfammation by lipopolysaccharide injection to the lateral ventricle. In the brain of rats with inlfammation, western blots showed increased CD93 expression that decreased over time. GIPC expression was unaltered. Immunohistochemistry demonstrated extensive distribution of CD93 expression mainly in cell membranes in the cerebral cortex. After lipopoly-saccharide stimulation, CD93 expression increased and then reduced, with distinct staining in the cytoplasm and nucleus. Double immunolfuorescence staining in cerebral cortex of normal rats showed that CD93 and GIPC widely expressed in resting microglia and neurons. CD93 was mainly expressed in microglial and neuronal cell membranes, while GIPC was expressed in both cell membrane and cytoplasm. In the cerebral cortex at 9 hours after model establishment, CD93-immunoreactive signal diminished in microglial membrane, with cytoplasmic transloca-tion and aggregation detected. GIPC localization was unaltered in neurons and microglia. These results are the ifrst to demonstrate CD93 participation in pathophysiological processes of central nervous system inlfammation.

关键词： nerve regeneration central nervous system brain inflammation model CD93 GIPC neurons microglia expression and localization lipopolysaccharide intracerebroventricular injection rats inducible nitric oxide synthase NSFC grants neural regeneration

Quantitative Survivability Analysis Using Probability Model Checking: A Study of Cluster-Based Vehicle Networks with Dual Cluster Heads

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China Communications 2020年第2期17卷 206-219页

作者： Li Jin Guoan Zhang Jue Wang Hao Zhu Wei Duan School of Information science and Technology Nantong UniversityNantong 226019China nantong Research Institute for Advanced Communication Technologies Nantong 226019China

As an important part of future 5G wireless networks,a vehicular network demands safety,reliability and *** this context,networking survivability is usually considered an important metric to evaluate network *** this paper,we propose a survivability model for vehicle communication networking based on dual cluster heads,wherein a backup cluster head(CH)will be activated if the primary CH fails,thereby effectively enhancing the network ***,we introduce a software rejuvenation strategy for the prime CH to further improve the survivability of the entire *** the Probabilistic Symbolic Model Checker(PRISM),we verify and discuss the proposed survivability model via numerical *** results show that network survivability can be effectively improved by introducing an additional CH and further enhanced by adopting the software rejuvenation technique.

关键词： cluster head 5G software recovery survivability vehicle networks

Web-Based Interactive Simulation of Weft Knitted Fabric

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Journal of Donghua university(English Edition) 2010年第6期27卷 764-769页

作者：瞿畅王君泽李波 College of Mechanical Engineering Nantong University

In order to realize parametric simulation of three-dimensional(3D)fabric structure based on web,a 3D model describing a plain knitted fabric,in which the cross-section of the yarn is circular shape and the path of the yarn is cubic B-spline curve,is proposed in this *** this model,the 3D simulation of the loop and of the basic structures of the knitted fabric is realized by using Virtual Reality Modeling Language(VRML).The virtual simulation scene is suitable for network transmission with freely available VRML browsers and can be translated,scaled and rotated quite *** using Java and External Authoring Interface(EAI)technology,the web-based interactive simulation platform of weft knitted fabric is *** user can input type of structures,basic fabric parameters,and yarn colors interactively to obtain a more realistic simulation result in real-time.A new approach is provided to imitate the knitted fabric 3D appearance on network.

关键词： weft knitted fabric loop model three-dimentional(3D)simulation Virtual Reality Modeling Language(VRML) Java External Authoring Interface(EAI)

Bionic peptide scaffold in situ polarization and recruitment of M2 macrophages to promote peripheral nerve regeneration

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Bioactive Materials 2023年第12期30卷 85-97页

作者： Pengxiang Yang Yong Peng Xiu Dai Jing Jie Deling Kong Xiaosong Gu Yumin Yang Key Laboratory of Neuroregeneration of Jiangsu Province and Ministry of Education Co-Innovation Center of NeuroregenerationNMPA Key Laboratory for Researchand Evaluation of Tissue Engineering Technology ProductsNantong University226001NantongPR China Institute of Cancer Prevention and Treatment Heilongjiang Academy of Medical ScienceHarbin Medical University150081HarbinPR China Department of Clinical Laboratory The Second Affiliated Hospital of Nantong University226001NantongPR China State Key Laboratory of Medicinal Chemical Biology College of Life SciencesNankai UniversityTianjin300071PR China

Tissue regeneration requires exogenous and endogenous signals,and there is increasing evidence that the exogenous microenvironment may play an even more dominant role in the complex process of coordinated multiple *** short-distance peripheral nerve showed a spontaneous regenerative phenomenon,which was initiated by the guiding role of ***,it cannot sufficiently restore long-distance nerve injury by *** on this principle,we firstly constructed a proinflammatory model to prove that abnormal M2 expression reduce the guidance and repair effect of long-distance ***,a bionic peptide hydrogel scaffold based on self-assembly was developed to envelop M2-derived regenerative cytokines and extracellular vesicles(EVs).The cytokines and EVs were quantified to mimic the guidance and regenerative microenvironment in a direct and mild *** bionic scaffold promoted M2 transformation in situ and led to proliferation and migration of Schwann cells,neuron growth and motor function ***,the peptide scaffold combined with CX3CL1 recruited more blood-derived M2 macrophages to promote long-distance nerve recon***,we systematically confirmed the important role of M2 in regulating and restoring the injury peripheral *** bionic peptide hydrogel scaffold mimicked and remodeled the local environment for M2 transformation and recruitment,favoring long-distance peripheral nerve *** can help to explicate regulative effect of M2 may be a cause not just a consequence in nerve repair and tissue integration,which facilitating the development of pro-regenerative biomaterials.

关键词： Bionic peptide scaffolds Peripheral nerve regeneration Macrophages Conditional media Immune microenvironment