Search results for: Lei Xiu

Items from 1 to 15 out of 15 results

article

Endoscopic Surgery for Delayed Wound Healing After Achilles Tendon Suture Repair: A Report of Three Cases

Yu‐ping Yang, Hong‐yu Chen, Guo‐qing Cui, Xiao‐lei Xiu, more

Orthopaedic Surgery > 13 > 3 > 1126 - 1131

Background Delayed wound healing is a potention complication after Achilles tendon suture repair and occurs for various reasons. The conventional treatment for delayed wound healing is open surgery, but patients face long recovery times and postoperative care is difficult. Case Presentation This report presents three patients who were seen at our institute from April 2008 to October 2017 due to...

article

Remove Welding Residual Stress for CFETR Vacuum Vessel by Trailing Ultrasonic Impact Treatment

Lei Xiu, Zhihong Liu, Gang Lv, Jianguo Ma, more

Journal of Fusion Energy > 2018 > 37 > 4 > 193-199

The China fusion engineering test reactor (CFETR) vacuum vessel is welded by narrow gap TIG (NG-TIG) welding, and the welding residual stress of the CFETR vacuum vessel can be redistributed by trailing welding ultrasonic impact treatment. In order to investigate the feasibility of the residual stress removing scheme, and to obtain the optimal trailing ultrasonic impact treatment technological parameters...

article

Weld distortion prediction of the CFETR vacuum vessel by inherent strain theory

Lei Xiu, Jiefeng Wu, Zhihong Liu, Jianguo Ma, more

Fusion Engineering and Design > 2017 > 121 > C > 43-49

The CFETR (China Fusion Engineering Test Reactor) vacuum vessel sectors have high density welded joint, and as-welded size of the vacuum vessel is within a very tight tolerance, prediction of weld distortion is critical to allow the final assembly with the other components. Based on inherent strain theory, the weld distortion of the vacuum vessel can be predicted using the computer package ABAQUS...

article

HuR mediates motility of human bone marrow-derived mesenchymal stem cells triggered by sphingosine 1-phosphate in liver fibrosis

Na Chang, Jingjing Ge, Lei Xiu, Zhongxin Zhao, more

Journal of Molecular Medicine > 2017 > 95 > 1 > 69-82

Sphingosine 1-phosphate (S1P) participates in migration of bone marrow (BM)-derived mesenchymal stem cells (BMSCs) toward damaged liver via upregulation of S1P receptor 3 (S1PR3) during mouse liver fibrogenesis. But, the molecular mechanism is still unclear. HuR, as an RNA-binding protein, regulates tumor cell motility. Here, we examined the role of HuR in migration of human BMSCs (hBMSCs) in liver...

chapter

Model of Trusted Dynamic Measurement Based on System Calls

Rui Hao, Xinguang Peng, Lei Xiu

Communications in Computer and Information Science > Emerging Research in Web Information Systems and Mining > Information Security > 238-241

The model of establishing the chain of trust presented by TCG is only the static integrity measure to system resources,it can not guarantee the dynamic trust after system operating. Therefore, this paper presents the trusted dynamic measurement model to platform application based on system calls for guaranteeing trust of the platform after computer system operating.

article

Levamisole promotes murine bone marrow derived dendritic cell activation and drives Th1 immune response in vitro and in vivo

Yubing Fu, Ting Wang, Lei Xiu, Xiaojie Shi, more

International Immunopharmacology > 2016 > 31 > C > 57-65

Our lab previously found that levamisole (LMS) as an adjuvant enhanced the efficacy of vaccine against infectious pathogens. However, the cellular and molecular mechanisms remain to be defined. In this study, we showed that BALB/c bone marrow-derived DC stimulated with LMS resulted in enhanced cell-surface expression of CD80, CD86, CD40 and MHC class II, as well as enhanced production of IL-12p70,...

article

Intracellular Sphingosine 1-Phosphate Contributes to Collagen Expression of Hepatic Myofibroblasts in Human Liver Fibrosis Independent of Its Receptors

Lei Xiu, Na Chang, Le Yang, Xin Liu, more

The American Journal of Pathology > 2015 > 185 > 2 > 387-398

Sphingosine 1-phosphate (S1P) is involved in multiple pathological processes, including fibrogenesis. S1P participates in mouse liver fibrogenesis via a paracrine manner. Herein, we investigated the involvement of S1P in human liver fibrosis. Human fibrotic samples were obtained from livers of patients undergoing liver transplantation. Expression of sphingosine kinase (SphK1), collagen (Col) α1(I),...

article

Hepcidin and iron metabolism in non-diabetic obese and type 2 diabetic rats

Yue Chen, Hui-qing Yin, Hao-ling Liu, Lei Xiu, more

Journal of Huazhong University of Science and Technology [Medical Sciences] > 2015 > 35 > 6 > 851-857

The aim of this study was to investigate the changes of iron levels and hepatic regulatory molecules expression involved in iron metabolism in non-diabetic obese/type 2 diabetic rat models. Male Wistar rats were divided into 3 groups: control group, non-diabetic obese group and type 2 diabetic group (n=20 each). The rats were evaluated physiologically and biochemically. The hepatic histopathological...

article

Sphingosine 1‐Phosphate Receptors Negatively Regulate Collagen Type I/III Expression in Human Bone Marrow‐derived Mesenchymal Stem Cell

Na Chang, Lei Xiu, Liying Li

Journal of Cellular Biochemistry > 115 > 2 > 359 - 367

Collagen is the most abundant structural protein in mammals and is expressed in various tissues. In recent years, sphingosine 1‐phosphate receptors (S1PRs) have been proven to play an important role in the regulation of collagen expression. Our previous studies reported that S1PRs are involved in TGF‐β1‐induced collagen expression via up‐regulating S1PR1/3 in mouse bone marrow‐derived mesenchymal...

chapter

Research of Software Trusted Dynamic Measurement Based on Support Vector Machine

Rui Hao, Xinguang Peng, Lei Xiu

2012 International Conference on Computing, Measurement, Control and Sensor Network > 401 - 404

2012 International Conference on Computing, Measurement, Control and Sensor Network (CMCS)

The research of software dynamic trusted measurement is one of the hot spots in trusted computing fields. To the existing problems of methods and theories in the credibility of the dynamic measurement for software, this paper puts forward to use dynamic extracting function return addresses in call stacks for obtaining system call short sequences. On this basis, the short sequences as the basic unit...

chapter

Research of software dynamic trusted measurement method

Rui Hao, Xinguang Peng, Lei Xiu

Proceedings of 2011 International Conference on Computer Science and Network Technology > 4 > 2614 - 2617

2011 International Conference on Computer Science and Network Technology (ICCSNT)

The research of software dynamic trusted measurement is one of the hot spots in trusted computing fields. In order to improve current dynamic trusted measurement theories and methods of software. The conceptions of behavior trace are proposed to depict the dynamic characteristics of software behavior. This method uses the chains of function return addresses to derive software normal behavior models...

article

Effects of Zao Huang Mixture ( ) on the Expressions of TGF-β1 and Col IV in Human Glomerular Mesangial Cells Cultured in High Glucose Environment

Jian-wei JU, Shou-han MU, Yan-zhi YIN, Cong-kui LÜ, more

Journal of Traditional Chinese Medicine > 2011 > 31 > 2 > 127-129

To investigate the effect of Zao Huang Mixture ( ZHM) on expressions of growth factor-β1 (TGF-β1) and collagen IV (Col IV) in human glomerular mesangial cells (GMC) cultured in high-glucose environment. After primary culture of GMC, in vitro culture was carried out in normal group, high glucose group and high glucose medium with ZHM of different concentrations, and the expressions of TGF-β1 and...

chapter

The application of hybrid orthogonal particle swarm optimization in robotic path planning

Ma Qian-zhi, Lei Xiu-juan

2010 Sixth International Conference on Natural Computation > 7 > 3536 - 3540

2010 Sixth International Conference on Natural Computation (ICNC)

Since particle swarm optimization is easily to fall into local optimization in robotic path planning, we proposed a novel hybrid orthogonal particle swarm optimization method to overcome the drawback. In the proposed algorithm, the global search ability was enhanced by introducing orthogonal design operator to the basic PSO algorithm and a special method to initial particles was designed to find the...

chapter

Simulation and Result Analysis of AMEsim for the Relief Valve Dynamic Characteristics Experiment

Lei Xiu, Wu Yajun

2010 International Conference on Electrical and Control Engineering > 5587 - 5590

2010 International Conference on Electrical and Control Engineering (ICECE 2010)

For indicators of relief valve's dynamic characteristics, most important things are both stability and rapid response ability. However, up to the present there is no effective design parameter to satisfy its demand. So, a pilot-operated relief valve and its dynamic experiment system's simulation model were established, by means of AMEsim software technology. Through the batch parameters simulating...

chapter

Mechanism of Mechanical Activation of Circulating Fluidized Bed Fly Ash

Li Jing-Tao, Lei Xiu-Jian, Zhang Wen-Qing, Zhao Yong-Hong

2010 International Conference on Electrical and Control Engineering > 3878 - 3881

2010 International Conference on Electrical and Control Engineering (ICECE 2010)

Circulating fluidized bed (CFB) fly ash with high loss on ignition is hard to utilize, which become a hindrance for promoting the CFB power plant. In the paper, cementitious activity of the fly ash is improved by milling it. And the effects of mechano-chemistry and carbon structure on its activity during grinding process were studied by XRD, SEM and FTIR techniques in combination with mechanical property...

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