Wang P.,Jiu Jiang University |
Peng H.,Jiu Jiang University
Chinese Control Conference, CCC | Year: 2014
Dynamic uncertainties and flight environment uncertainties are important factors that affect attitude control performance of Bank-to-Turn vehicle. Low order robust controller design method under these uncertainties is presented. A dual-loop control architecture using state-feedback and μ synthesis combined with genetic algorithm is presented. The feedback parameters and the weight functions of μ controller are optimized by using the genetic algorithm. A controller reduction method based on Hankel norm and gap metrics is proposed to reduce the order and complexity of the robust controller. A lower order robust controller guaranteeing the stability and tracking performance of the close-loop system is obtained. The simulation results show the design method is effective. The design procedure and analysis show that this method is also effective in the tracking system with model uncertainties. © 2014 TCCT, CAA.
Han K.,Jiu Jiang University |
Wei X.,Jiu Jiang University
Lecture Notes in Electrical Engineering | Year: 2013
Motivation is important for studying English; the teacher should have positive expectation on the students. The English studying interest of the students is aroused by singing English songs and setting the studying goals for the students. The following steps are used to improve the interest of studying English: instruct them the strategies of studying, guide the students to choose the contents of studying, direct them to practice speaking English, conduct them to learn the vocabulary and the text, and guide them to study English outside the classroom. The multiple equipment should be sufficiently used with reason and feedback exactly on time so as to arouse the students' motivation in English teaching. © 2013 Springer-Verlag.
Zhang X.,China University of Technology |
Zhang X.,Jiu Jiang University |
Pei Z.,China University of Technology |
Lu H.,China University of Technology |
Huang H.,China University of Technology
RSC Advances | Year: 2016
Four types of CeO2 nanoparticles with different morphologies (nanorods, nanocubes, nanopolyhedra, and bulk CeO2 nanoparticles) were synthesized and used in dichloromethane (DCM) oxidation. Their detailed physicochemical properties were investigated by X-ray diffraction, N2 physisorption, H2 temperature-programmed reduction, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy. Results indicated that DCM oxidation over CeO2 nanoparticles has significant morphology-dependent effects. CeO2 nanorods showed the best activity among all the investigated samples (T90 is only 323 °C). The main products were CO2 and HCl, although trace amounts of CHCl3, CCl4, CO, and Cl2 could be detected. The high performance of CeO2 nanorods in DCM oxidation may be related to the abundant surface defects, increased amount of adsorbed active oxygen species, and good reducibility of the catalyst. © 2016 The Royal Society of Chemistry.
Qin X.,Jiu Jiang University |
Yi T.,Suzhou Science and Technology College
Advances in Intelligent and Soft Computing | Year: 2012
In this paper, we propose a real-time advertising solution based on MANET for equipment failure information, and provide a fairly detailed description of the development of a distributed sensing and visualization system of equipments failures. The system consists of clients, middle nodes and central server, and includes such subsystems as failure information generator, failure information transfer, routing protocol, distributed sensing and visualization system based on geographical information system (GIS). Experiments demonstrate that the system can advertise the failure information in a timely way and provide rich inquiry functions and real-time situation display. © 2012 Springer-Verlag GmbH.
Wang F.,Jiu Jiang University |
Ying C.,Jiu Jiang University |
Shang G.,Jiangxi University of Traditional Chinese Medicine |
Jiao M.,Northeast Normal University |
Hongfang Z.,Jiu Jiang University
Micron | Year: 2013
In higher eukaryotes ribosome production starts at the end of mitosis, increases during G1, is maximal in G2 (. Sirri et al., 2000) and stops during prophase (. Gébrane-Younès et al., 1997). But the mechanism of the change is still uncovered. Especially in the actively growing mammalian somatic cells usually contain one or several giant fibrillar centres (GFCs) with many tiny fibrillar centre (FCs) (. Koberna et al., 2002; RaŠka et al., 2004; Casafont et al., 2007). The process how the giant fibrillar centre (GFC) and the many tiny fibrillar centres (FCs) were formed is unknown. The present results showed there were processes of FCs fusion in G1 phase and FCs regeneration in S phase respectively in the nucleoli of A 375 cells. A few FCs fused each other in late G1 phase when the process of nucleoli fusion was completed. In S phase, a lot of tiny FCs were regenerated from the periphery of GFC, separated and scattered into nucleolar matrix in late S phase and early G2 phase. The GFC was found to be coexisted with numerous tiny FCs in the nucleolus in G2 phase. The present study provided a new evidence of nucleolar dynamic change during interphase: fibrillar centre (FC) was not to be a stable state subunit of nucleolar compartment but a highly dynamic process that may be the bases of nucleolar morphological architecture organization and its function taking place. © 2013 Elsevier Ltd.
Guo F.,Nanchang University |
Guo X.,Jiu Jiang University |
Xie A.,Nanchang University |
Lou Y.L.,Nanchang University |
Wang Y.,Nanchang University
Biological Trace Element Research | Year: 2011
Lanthanide ions have been proven to have various biologic effects. Lanthanum with extremely active physical and chemical property was evidenced to possess antibacterial and immune adjustment effects. In the present study, the anti-inflammatory effects of lanthanum chloride (LaCl 3) on lipopolysaccharide (LPS)-challenged mice were examined in vivo and in vitro. The results indicated that LaCl 3 can greatly decrease the secretion of tumor necrosis factor alpha (TNF-α) and interleukin (IL)-1β as well as TNF-α mRNA expression in the mice challenged with LPS. To clarify the mechanism involved, the effects of LaCl 3 on the activation of nuclear factor (NF)-κB were examined both in liver and in peritoneal macrophages. The LPS-induced activation of NF-κB was significantly blocked by LaCl 3. These findings demonstrate that the inhibition of the LPS-induced inflammatory media, such as TNF-α and IL-1β, by LaCl 3, is due to the inhibition of NF-κ B activation. © Springer Science+Business Media, LLC 2010.
Zhang Y.,Jiu Jiang University
Proceedings - 2010 International Conference on Artificial Intelligence and Education, ICAIE 2010 | Year: 2010
This paper analyses main factors influencing CET4 passing-rate after investigating some classes and reducing related factors based on rough set to find out the core factor and minimum reduction, and then sets up forecasting model of low passing rate with ANN. In virtue of this situation, to switch original post-controlling into pre-controlling in general academy is expected to avoid low passing-rate in maximum. ©2010 IEEE.
Shu-Yue M.,Jiu Jiang University |
Wen-Cai L.,Jiu Jiang University |
Shuo W.,Inner Mongolia University of Technology
Proceedings - 2011 4th International Symposium on Knowledge Acquisition and Modeling, KAM 2011 | Year: 2011
According to the Web log mining, the site administrators can control the network traffic and understand the user access modes. Then they can further improve the performance of Web systems and optimize the system design of Web sites by using these information. However, the Web log data doesn't perform the data mining directly in most cases because of the messy and redundant content and other reasons. This paper analyzes the data pre-processing on Web log in order to meet the needs of data mining. At the same time, it also puts forward some reasonable processing means. © 2011 IEEE.
PubMed | Jiangxi University of Traditional Chinese Medicine, Jiu Jiang University and Northeast Normal University
Type: | Journal: Cell biology international | Year: 2016
In the higher eukaryotic nucleolus, fibrillar centers (FCs), the dense fibrillar components (DFCs), and the granular components (GCs) are functional domains structurally relatively well-defined by electron microscopy (EM). However, ultrastructural alterations in FC, DFC, and GC during the cell cycle and their associated cellular functions are still largely unclear. Based on synchronized HeLa cells, we followed the structural dynamics of nucleolus during cell cycle by EM. We found that nucleolus structure shifted from tripartite to bipartite organization and FC/DFCs were reorganized in S phase with three distinct stages: (1) In early-S phase, FC/DFC structures were disassembled. (2) In mid-S phase, a transition from FC/DFC disruption to restoration occurred. As FC/DFC structures were completely disassembled, nucleoli became structurally homogenous. (3) In late-S phase, the number of small FC/DFCs increased and subsequently large FC/DFCs were constructed. Our data demonstrated that nucleolar FC/DFCs in interphase are presented in two different forms or states due to disassembly and reassembly. FC/DFCs in G1 are nucleolar structures constructed concomitantly with the establishment of nucleoli derived from the nucleolar organizer region (NOR). FC/DFCs in G2 are nucleolar components reconstituted after the global reassembly in mid-S phase. Dynamic nucleolus structures revealed in this study may serve as ultrastructural characteristics to reflect distinct stages of the cell cycle. By providing evidence for the temporal and spatial regulation of nucleolus, our findings contribute to the coupling of nucleolus structures to cell cycle dependent functions.
PubMed | Jiu Jiang University
Type: | Journal: Micron (Oxford, England : 1993) | Year: 2013
In higher eukaryotes ribosome production starts at the end of mitosis, increases during G1, is maximal in G2 (Sirri et al., 2000) and stops during prophase (Gbrane-Youns et al., 1997). But the mechanism of the change is still uncovered. Especially in the actively growing mammalian somatic cells usually contain one or several giant fibrillar centres (GFCs) with many tiny fibrillar centre (FCs) (Koberna et al., 2002; Raka et al., 2004; Casafont et al., 2007). The process how the giant fibrillar centre (GFC) and the many tiny fibrillar centres (FCs) were formed is unknown. The present results showed there were processes of FCs fusion in G1 phase and FCs regeneration in S phase respectively in the nucleoli of A 375 cells. A few FCs fused each other in late G1 phase when the process of nucleoli fusion was completed. In S phase, a lot of tiny FCs were regenerated from the periphery of GFC, separated and scattered into nucleolar matrix in late S phase and early G2 phase. The GFC was found to be coexisted with numerous tiny FCs in the nucleolus in G2 phase. The present study provided a new evidence of nucleolar dynamic change during interphase: fibrillar centre (FC) was not to be a stable state subunit of nucleolar compartment but a highly dynamic process that may be the bases of nucleolar morphological architecture organization and its function taking place.