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Search Results: 1 - 10 of 33168 matches for " Guo Jinsong "
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The Pitch Control Algorithm of Wind Turbine Based on Fuzzy Control and PID Control  [PDF]
Rui Guo, Jinsong Du, Jinghui Wu, Yiyang Liu
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.53B002
Abstract:

Due to the special features of great inertia, pure lag and non-linearity provided with wind turbine, coupled with complex and variable working condition, it is difficult to achieve satisfactory control results simply by employing traditional PID, which has the drawbacks such as adjustment inconvenience, poor anti-interference, and large overshoot, and prolonged adjust span. This paper puts forward one type of improved controller combining Fuzzy Control with PID Control. With larger speed deviation, the controller emphasizes Fuzzy Control to speed system response; with less speed deviation, the controller emphasizes PID Control to improve control accuracy. Simulation Test directing at the algorithm is based on the Bladed software, with the positive result of improved dynamic and static performance of wind turbine under large disturbance.

The Duals of Fusion Frames for Experimental Data Transmission Coding of High Energy Physics
Jinsong Leng,Qixun Guo,Tingzhu Huang
Advances in High Energy Physics , 2013, DOI: 10.1155/2013/837129
Abstract: The experimental data transmission is an important part of high energy physics experiment. In this paper, we connect fusion frames with the experimental data transmission implement of high energy physics. And we research the utilization of fusion frames for data transmission coding which can enhance the transmission efficiency, robust against erasures, and so forth. For this application, we first characterize a class of alternate fusion frames which are duals of a given fusion frame in a Hilbert space. Then, we obtain the matrix representation of the fusion frame operator of a given fusion frame system in a finite-dimensional Hilbert space. By using the matrix representation, we provide an algorithm for constructing the dual fusion frame system with its local dual frames which can be used as data transmission coder in the high energy physics experiments. Finally, we present a simulation example of data coding to show the practicability and validity of our results. 1. Introduction Because of the cross-regional feature of high energy physics experiment, there exists a huge amount of data produced in the experiment procedure which needs to be transmitted from each experimental field to the remote center for processing synthetically every day. The relevant technologies in many current data transmission systems are the data transmission protocol GridFTP, the object-related database management system PostgreSQL, the application sever JBoss, and so forth in order to ensure the real-time, reliable, and efficient data transmission [1]. But in many transmission systems, all the signals have to be retransmitted when one or more vectors of data are lost in the transmission process, which leads to wasting a lot of time and resources. Why not use fusion frames? We find that they are natural suitable tools for the experimental data transmission coding of high energy physics. In fact, this application of fusion frames can save more time and resources caused by the retransmission. Redundancy is an interesting and attractive feature of frames, because it has at least two advantages. First, it makes the construction of various classes of frames flexible; secondly, it can enhance the robustness of encoding data when erasures occur in signal transmissions. So, the theory of frames has been developed rapidly in mathematics and achieved successful applications in various areas of pure and applied sciences and engineering in the past twenty years. We only mention some applications of frames here such as signal and image processing [2], quantization [3], capacity of
Modelling and Analysis on Noisy Financial Time Series  [PDF]
Jinsong Leng
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.22012
Abstract:

Building the prediction model(s) from the historical time series has attracted many researchers in last few decades. For example, the traders of hedge funds and experts in agriculture are demanding the precise models to make the prediction of the possible trends and cycles. Even though many statistical or machine learning (ML) models have been proposed, however, there are no universal solutions available to resolve such particular problem. In this paper, the powerful forward-backward non-linear filter and wavelet-based denoising method are introduced to remove the high level of noise embedded in financial time series. With the filtered time series, the statistical model known as autoregression is utilized to model the historical times aeries and make the prediction. The proposed models and approaches have been evaluated using the sample time series, and the experimental results have proved that the proposed approaches are able to make the precise prediction very efficiently and effectively.

Fibrillarin redistributes to the spindle poles and partially colocalizes with NuMA during mitosis
Yan Guo,Chaoliang Wei,Jinsong Hu,Mingxiao Ding,Jianguo Chen
Chinese Science Bulletin , 2002, DOI: 10.1360/02tb9433
Abstract: Fibrillarin, a major protein in the nucleolus, is known to redistribute during mitosis from the nucleolus to the cytosol, and is related to the dynamics of post-mitotic reassembly of the nucleolus. To better understand the dynamic behavior and the relationship with other cytoplasmic structures, we have now expressed fibrillarin-pDsRed1 fusion protein in HeLa cells. The results showed that a part of fibrillarin was associated with mitotic spindle poles in the mitotic cells. Nocodazole-induced microtubule depolymerization resulted in fibrillarin redistribution throughout the cytoplasm, and removal of nocodazole resulted in relocalization of fibrillarin at the polar region during the mitotic spindles reassembly. In a mitotic cell free system, fibrillarin was found in the center of taxol-induced microtubule asters. Moreover, fibrillarin was found to colocalize with the nuclear mitotic apparatus protein (NuMA) at the poles of mitotic cells. Therefore, it is postulated that the polar redistribution of fibrillarin is mediated by microtubules.
Anti-infective treatment in HIV-infected patients during perioperative period
Liu Baochi,Zhang Lei,Guo Ruizhang,Su Jinsong
AIDS Research and Therapy , 2012, DOI: 10.1186/1742-6405-9-36
Abstract: Objective To investigate anti-infective treatments in HIV-infected surgical patients during the perioperative period. Methods A retrospective study of sepsis and surgical site infections (SSIs) was conducted in 266 HIV-infected patients. The patients were divided into 3 groups based on CD4+ T cells counts in the preoperative period: group A (0–199 cell/ul), group B (200–349 cell/ul) and group C ([greater than or equal to] 350 cell/ul). When the CD4 count was below 350 cells/uL, anti-retrovirus therapy was started. For patients whose preoperative CD4 counts were [less than or equal to] 200 cells/uL, preoperative antibiotic medication was started. Results Patients in group A were more likely to get sepsis than patients in the other two groups (p0.01). Among 82 patients with clean wounds, only one patient got SSIs. All patients with dirty wounds had acquired SSIs after surgery. There were only 6 patients dead at 30 days after surgery, a death rate of 2.3%. Sepsis appeared in 110 patients (41%). Conclusions Complete evaluation of surgical risk and suitable perioperative anti-infective treatment may lead to better outcome for HIV-infected surgical patients.
Dimensional Measurement of Complete-connective Network under the Condition of Particle’s Fission and Growth at a Constant Rate  [PDF]
JinSong Wang, BeiBei Hu
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.512B009
Abstract: We construct a complete-connective regular network based on Self-replication Space and the structural principles of cantor set and Koch curve. A new definition of dimension is proposed in the paper, and we also investigate a simplified method to calculate the dimension of two regular networks. By the study results, we can get a extension: the formation of Euclidean space may be built by the process of the Big Bang's continuously growing at a constant rate of three times.
Common promoter variants of the NDUFV2 gene do not confer susceptibility to schizophrenia in Han Chinese
Wen Zhang, Xiaogang Chen, Wei Gong, Jinsong Tang, Liwen Tan, Hao Guo, Yong-Gang Yao
Behavioral and Brain Functions , 2010, DOI: 10.1186/1744-9081-6-75
Abstract: We genotyped the promoter variants of this gene (rs6506640 and rs1156044) by direct sequencing in 529 unrelated Han Chinese schizophrenia patients and 505 matched controls. Fisher's Exact test was performed to assess whether these two reported single nucleotide polymorphisms (SNPs) confer susceptibility to schizophrenia in Chinese.Allele, genotype and haplotype comparison between the case and control groups showed no statistical significance, suggesting no association between the NDUFV2 gene promoter variants and schizophrenia in Han Chinese.The role of NDUFV2 played in schizophrenia needs to be further studied. Different racial background and/or population substructure might account for the inconsistent results between studies.Mitochondrial dysfunction was considered as a risk factor for the onset of schizophrenia and other psychiatric disorders [1]. As a core component of mitochondrial respiratory chain, the 24 kD subunit of mitochondrial complex I, NADH-ubiquinone oxidoreductase flavoprotein (NDUFV2), is a hot candidate target for psychiatric disorders [2-7]. The first clue that indicated a potential positive association of the NDUFV2 gene with schizophrenia could be traced to the pioneer association and linkage study by Schwab and colleagues [8], in which they reported chromosome 18p (which contains this gene), conferred susceptibility to functional psychoses in families with schizophrenia. Subsequent analyses showed a decreased level of NDUFV2 expression in postmortem prefrontal cortex and striatum of schizophrenia patients [9-11] and in lymphoblastoid cell line of Caucasian schizophrenia patients [4], suggesting an active involvement of NDUFV2 in schizophrenia. Recent association studies further indicated that the NDUFV2 promoter haplotype, which was constituted by two SNPs (rs6506640-rs1156044), was significantly associated with schizophrenia in Japanese population [5]. This association was also found in patients with bipolar disorder from different populatio
Improvements of surgical techniques in a rat model of an orthotopic single lung transplant
Haizhou Guo, Jun Nie, Kai Fan, Zhikun Zheng, Xinwei Qiao, Jinsong Li, Jianjun Wang, Ke Jiang
European Journal of Medical Research , 2013, DOI: 10.1186/2047-783x-18-1
Abstract: A total of 42 adult Lewis rats received orthotopic LT with our newly modified procedures. The modified procedures were based on the traditional procedure and incorporated improvements involving orotracheal intubation; a cuff without a tail; conservative dissection in the hilum; preservation of the left lung during anastomosis; successive anatomizing of the bronchus, the pulmonary vein, and the pulmonary artery; and one operator.Transplants were performed in 42 rats with a successful rate of 95.23% (40/42). The mean duration for the complete procedure was 82.93 +/- 14.56 minutes. All anastomoses were completed in one attempt without vessel laceration, twisting or angulation. In our study, two animals died within three days and one animal died ten days after the operation. All grafts were well inflated with robust blood perfusion and functioned normally as demonstrated by blood gas analysis.We have developed a modified orthotopic LT technique that can be easily performed while overcoming major drawbacks. The modified technique has many advantages, such as easy graft implanting, shortened operation time, fewer complications and high reproducibility.
Oxidative stress in NSC-741909-induced apoptosis of cancer cells
Xiaoli Wei, Wei Guo, Shuhong Wu, Li Wang, Peng Huang, Jinsong Liu, Bingliang Fang
Journal of Translational Medicine , 2010, DOI: 10.1186/1479-5876-8-37
Abstract: The generation of ROS was measured by using the cell-permeable nonfluorescent compound H2DCF-DA and flow cytometry analysis. Cell viability was determined by sulforhodamine B assay. Western blot analysis, immunofluorescent staining and flow cytometry assays were used to determine apoptosis and molecular changes induced by NSC-741909.Treatment with NSC-741909 induced robust ROS generation and marked MAPK phosphatase-1 and -7 clustering in NSC-741909-sensitive, but not resistant cell lines, in a dose- and time-dependent manner. The generation of ROS was detectable as early as 30 min and ROS levels were as high as 6- to 8-fold above basal levels after treatment. Moreover, the NSC-741909-induced ROS generation could be blocked by pretreatment with antioxidants, such as nordihydroguaiaretic acid, aesculetin, baicalein, and caffeic acid, which in turn, inhibited the NSC-741909-induced JNK activation and apoptosis.Our results demonstrate that the increased ROS production was associated with NSC-741909-induced antitumor activity and that ROS generation and subsequent JNK activation is one of the primary mechanisms of NSC-741909-mediated antitumor cell activity.We recently identified a small molecule (oncrasin-1) through cell-based synthetic lethality screening that can effectively kill several lung cancer cell lines harboring mutant K-Ras genes [1]. Subsequent analyses of oncrasin-1 analogues led us to identify several active compounds with similar chemical structures. NSC-741909 is one of the oncrasin-1 analogues that was highly active against several cell lines derived from lung, colon, breast, ovarian, and kidney cancers when tested in NCI-60 cancer cell lines by the Developmental Therapeutics Program at the National Cancer Institute. Using a reverse-phase protein microarray assay, we determined molecular changes in 77 protein biomarkers in an oncrasin-sensitive lung cancer cell line after treatment with NSC-741909 [2]. These results showed that treatment with NSC-741909
Genetic insight of the H5N1 hemagglutinin cleavage site
XiaoLi Guo,YiSheng Zhu,YiXue Li,Ping Shi,HaoKui Zhou,JinSong Yao,ZhenDe Huang,DongQing Wei
Chinese Science Bulletin , 2007, DOI: 10.1007/s11434-007-0374-y
Abstract: The cleavability of the hemagglutinin (HA) plays a major role in virulence of avian influenza viruses. Detailed analyses of the cleavage sequences and their evolution would give insights into the high pathogenicity of the H5N1 virus. HA segments were visually identifiable in the cellular automata (CA) image, and a feature gene segment (FGS) was only found in H5N1 rather than any other subtype. This FGS is a 30-bp gene segment mainly consisting of ‘A’ and ‘G’. When translated into amino acids the FGS converted into a sequence of mainly basic amino acids with positive charges. This feature amino acid segment (FAAS) was located in the cleavage site loop of HA which was potentially cleavable by various proteases. The 3D structure of H5N1 HA was reconstructed using homology modelling. It was found that the cleavage site loop was well exposed to potential proteases. The molecular surfaces were reconstructed to study how mutation and deletion of some amino acids in the FAAS affected the charge distribution. It was found that some mutations had severely changed the landscape of the charge distribution. Statistical analyses of FAAS were made with respect to when and where the H5N1 viruses were found. In 2005, there were less un-mutated FAAS than the other years according to temporal evolution, and more mutated FAAS appeared in China than other regions according to geographic distribution. These results are helpful for exploring the evolution of virus high pathogenicity.
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