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Search Results: 1 - 10 of 26438 matches for " Jing Xiong "
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On a question of Babadi and Tarokh
Jing Xia,Maosheng Xiong
Mathematics , 2013,
Abstract: In a recent remarkable paper, Babadi and Tarokh proved the "randomness" of sequences arising from binary linear block codes in the sense of spectral distribution, provided that their dual distances are sufficiently large. However, numerical experiments conducted by the authors revealed that Gold sequences which have dual distance 5 also satisfy such randomness property. Hence the interesting question was raised as to whether or not the stringent requirement of large dual distances can be relaxed in the theorem in order to explain the randomness of Gold sequences. This paper improves their result on several fronts and provides an affirmative answer to this question.
Optimal Resources Dispatching Technology of Distribution Network Rush-Repairing  [PDF]
Chao Zhang, Xinhe Chen, Xing Xiong, Jing Zhou, Wenbin Zhang
Journal of Power and Energy Engineering (JPEE) , 2014, DOI: 10.4236/jpee.2014.24061
Abstract: Confronted with the requirement of higher efficiency and higher quality of distribution network fault rush-repair, the subject addressed in this paper is the optimal resource dispatching issue of the distribution network rush-repair when single resource center cannot meet the emergent resource demands. A multi-resource and multi-center dispatching model is established with the objective of “the shortest repair start-time” and “the least number of the repair centers”. The optimal and worst solutions of each objective are both obtained, and a “proximity degree method” is used to calculate the optimal resource dispatching plan. The feasibility of the proposed algorithm is illustrated by an example of a distribution network fault. The proposed method provides a practical technique for efficiency improvement of fault rush-repair work of distribution network, and thus mostly abbreviates power recovery time and improves the management level of the distribution network.
X-ray Photoelectron Spectroscopy Studies of TixAl1-xN Thin Films Prepared by RF Reactive Magnetron Sputtering
X-ray Photoelectron Spectroscopy Studies of Ti_xAl_(1-x)N Thin Films Prepared by RF Reactive Magnetron Sputtering


材料科学技术学报 , 2005,
Abstract: TixAl1-xN films have been prepared by RF reactive magnetron sputtering. X-ray diffraction results showed that TixAl1-xN thin films in this study were hexagonal wurtzite structure with the Ti content up to 0.18. X-ray photoelectron spectrocopy studies provided that the N1s core-electron spectrum of TixAl1-xN thin film brodend with increasing Ti content, and the difference of the chemical shifts for Ti2p3/2 line between TiN and TixAl1-xN thin film was 0.7 eV.
Blockade of Brain γ-Aminobutyric Acid a Receptors Antagonizes Hypnotic Action of Isoflurane in Rats―GABA Receptor and Isoflurane Induced Hypnosis  [PDF]
Ming Xiong, Ralph L. da Graca, Jing Li, Harshitha Kota, Jiang-Hong Ye
Journal of Behavioral and Brain Science (JBBS) , 2011, DOI: 10.4236/jbbs.2011.13025
Abstract: Although in vitro studies have demonstrated that isoflurane potentiates the function of γ-aminobutyric acid A receptors (GABAARs), the in vivo data are controversial. To determine if GABAARs contribute to the loss-of righting reflex (LORR) induced by isoflurane, we studied the LORR in the absence and presence of gabazine, a competitive GABAAR antagonist, in Sprague-Dawley rats anesthetized with either isoflurane or ketamine. Administration of isoflurane and ketamine induced LORR in a dose-dependent manner. Gabazine significantly antagonized the effect of isoflurane and shifted the dose response curve to the right. In addition, gabazine prolonged the onset time of LORR induced by isoflurane. Ketamine induced LORR was not affected by gabazine. This indicates that centrally administered gabazine selectively blocks the effect of isoflurane, and the effect of gabazine is not due to a non-specific CNS excitatory action. These results suggest that the hypnotic effect of isoflurane is at least in part mediated by GABAARs.
A Novel in Vitro Three-Dimensional Macroporous Scaffolds from Bacterial Cellulose for Culture of Breast Cancer Cells  [PDF]
Guangyao Xiong, Honglin Luo, Feng Gu, Jing Zhang, Da Hu, Yizao Wan
Journal of Biomaterials and Nanobiotechnology (JBNB) , 2013, DOI: 10.4236/jbnb.2013.44040

In this work, patterned macropores with a diameter larger than 100 μm were introduced to pristine three-dimensional (3D) nanofibrous bacterial cellulose (BC) scaffolds by using the infrared laser micromachining technique in an attempt to create an in vitro model for the culture of breast cancer cells. The morphology, pore structure, and mechanical performance of the obtained patterned macroporous BC (PM-BC) scaffolds were characterized by scanning electron microscopy (SEM), mercury intrusion porosimeter, and mechanical testing. A human breast cancer cell (MDA-MB-231) line was cultured onto the PM-BC scaffolds to investigate the role of macropores in the control of cancer cell behavior. MTT assay, SEM, and hematoxylin and eosin (H&E) staining were employed to determine cell adhesion, growth, proliferation, and infiltration. The PM-BC scaffolds were found to be able to promote cellular adhesion and proliferation on the scaffolds, and further to allow for cell infiltration into the PM-BC scaffolds. The results demonstrated that BC scaffolds with laser-patterned macropores were promising for the in vitro 3D culture of breast cancer cells.

Effect of Carbon Content on Ti Inclusion Precipitated in Tire Cord Steel  [PDF]
Yuedong Jiang, Jialiu Lei, Jing Zhang, Rui Xiong, Feng Zou, Zhengliang Xue
Journal of Surface Engineered Materials and Advanced Technology (JSEMAT) , 2013, DOI: 10.4236/jsemat.2013.34038

The precipitation of TiN inclusion during solidification of different carbon content of 0.72%, 0.82% and 0.95% in tire cord steel is thermodynamically studied respectively. The results show that the carbon content has obvious effect on TiN inclusion precipitated in tire cord steel of different strength levels. With the carbon content of tire cord steel increasing, the temperature before solidifying reduced gradually and the required activity product of titanium and nitrogen for TiN inclusion precipitation also declined gradually. With the same condition of initial Ti and N content in liquid steel, the size of TiN inclusion precipitated in tire cord steel of higher carbon content is bigger than that of lower carbon content. In order to control the harmful effects on processability of TiN inclusion precipitated in hypereutectoid tire cord steel of the ultra high strength level, the measures of smelting process must be taken to further reduce the titanium and nitrogen content in liquid steel.

Study on Decision Method of Neutral Point Grounding Mode for Medium-Voltage Distribution Network  [PDF]
Hengyong Liu, Xiaofu Xiong, Jinxin Ouyang, Xiufen Gong, Yinghua Xie, Jing Li
Journal of Power and Energy Engineering (JPEE) , 2014, DOI: 10.4236/jpee.2014.24088
Abstract: The neutral grounding mode of medium-voltage distribution network decides the reliability, overvoltage, relay protection and electrical safety. Therefore, a comprehensive consideration of the reliability, safety and economy is particularly important for the decision of neutral grounding mode. This paper proposes a new decision method of neutral point grounding mode for mediumvoltage distribution network. The objective function is constructed for the decision according the life cycle cost. The reliability of the neutral point grounding mode is taken into account through treating the outage cost as an operating cost. The safety condition of the neutral point grounding mode is preserved as the constraint condition of decision models, so the decision method can generate the most economical and reliable scheme of neutral point grounding mode within a safe limit. The example is used to verify the feasibility and effectiveness of the decision method.
The Association between Expression of NK Cells and Prognosis of Patients with HBV Acute-on-Chronic Liver Failure in Advanced Phase  [PDF]
Weizhen Weng, Yiming Shi, Xiaohua Peng, Jing Xiong, Huijuan Cao, Bingliang Lin
Advances in Infectious Diseases (AID) , 2017, DOI: 10.4236/aid.2017.74012
Abstract: Acute-on-chronic liver failure (Acute-on-chronic liver failure, ACLF) is acute liver function decompensation on the basis of chronic liver disease. The progression of ACLF develops from advanced phase, plateau phase to remission phase. The pathophysiological basis of ACLF in different phases is various. In advanced phase, immune imbalance and systemic inflammatory reaction plays key roles. In this study, we try to assess the association between expression of NK cells and its receptors and prognosis of patients with ACLF in advanced phase. A total of 35 inpatients with HBV acute-on-chronic liver failure in advanced phase were recruited. They were divided into case group (n = 18) and control group (n = 17) according to whether the patients was dead in the 12 weeks. PBMC were detected for the frequency and expression of NK cell receptors by flow cytometric analysis. Our results demonstrated that patients who died had lower expression of NK cells and inhibitory receptor KIR3DL1, higher levels of FASL. During 12-week follow-up in those case alive, we found that NK cells increased, while expression of FASL decreased. High short-term mortality of ALCF was associated with NK cell, especially related to KIR3DL1 and FASL (PNK = 0.036, PKIR3DL1 = 0.0265, PFasL = 0.0008).
Risk Factors for Gastrointestinal Injuries in Acute Coronary Syndrome Patients with Double Antiplatelet Therapy in One-Year Follow-Up  [PDF]
Ling Zhong, Xin Chen, Xihua Qiu, Xueli Zhang, Hua Shao, Yamin Liu, Jing Xiong
World Journal of Cardiovascular Diseases (WJCD) , 2018, DOI: 10.4236/wjcd.2018.810046
Abstract: Background: The goal is to determine the incidence of symptomatic gastrointestinal (GI) injuries in acute coronary syndrome (ACS) patients receiving double antiplatelet therapy (DAPT). The risk factors for serious GI complications are also evaluated. Methods: 603 eligible patients from the Department of Cardiology at Zhongda Hospital between January 2014 and August 2015 were enrolled and the occurrence of GI injuries within one year assessed. The risk factors for serious GI complications were identified using cox regression analysis. Results: After one-year follow-up, 108 (17.9%) out of 603 patients developed symptomatic GI injuries: 22 (3.65%) with serious GI complications and 86 (14.2%) with GI symptoms. Drinking habit (95% CI: 1.512 - 8.796; P = 0.004) and previous peptic injury (95% CI: 2.307 - 18.080; P = 0.001) are independent predictors of serious GI complications, while proton pump inhibitor (PPI) was protective (95% CI: 0.120 - 0.699; P = 0.006) per cox regression analysis. Additionally, GI injuries of both serious GI complications and GI symptoms peaked in the first three months. Conclusions: Symptomatic GI injuries were relatively
A Fast Reconstruction Algorithm for Fluorescence Optical Diffusion Tomography Based on Preiteration
Xiaolei Song,Xiaoyun Xiong,Jing Bai
International Journal of Biomedical Imaging , 2007, DOI: 10.1155/2007/23219
Abstract: Fluorescence optical diffusion tomography in the near-infrared (NIR) bandwidth is considered to be one of the most promising ways for noninvasive molecular-based imaging. Many reconstructive approaches to it utilize iterative methods for data inversion. However, they are time-consuming and they are far from meeting the real-time imaging demands. In this work, a fast preiteration algorithm based on the generalized inverse matrix is proposed. This method needs only one step of matrix-vector multiplication online, by pushing the iteration process to be executed offline. In the preiteration process, the second-order iterative format is employed to exponentially accelerate the convergence. Simulations based on an analytical diffusion model show that the distribution of fluorescent yield can be well estimated by this algorithm and the reconstructed speed is remarkably increased.
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