Haloactinobacterium album gen. nov., sp. nov., a halophilic actinobacterium, and proposal of Ruaniaceae fam. nov.

Tang, Shu-Kun,Zhi, Xiao-Yang,Wang, Yun,Wu, Jin-Yuan,Lee, Jae-Chan,Kim, Chang-Jin,Lou, Kai,Xu, Li-Hua,Li, Wen-Jun Microbiology Society 2010 International journal of systematic and evolutiona Vol.60 No.9

<P>A Gram-staining-positive, facultatively anaerobic, non-motile and moderately halophilic actinobacterium, designated YIM 93306<SUP>T</SUP>, was isolated from a salt lake in Xinjiang province, north-west China, and subjected to a polyphasic taxonomic study. Strain YIM 93306<SUP>T</SUP> grew in the presence of 2-16 % (w/v) NaCl and did not grow without NaCl. The peptidoglycan type was A4<I>α</I> with an l-Lys-l-Glu interpeptide bridge. The whole-cell sugars were glucosamine, arabinose, mannose and two unknown sugars. The predominant menaquinone was MK-8(H4). The major fatty acids were iso-C15 : 0, anteiso-C15 : 0 and anteiso-C17 : 0. The polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, one unknown phosphoglycolipid and one unknown phospholipid. The DNA G+C content was 68.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain YIM 93306<SUP>T</SUP> fell within the radius of the suborder <I>Micrococcineae</I>. Its closest phylogenetic neighbour was the type strain of <I>Ruania albidiflava</I> (AS 4.3142<SUP>T</SUP>; 96.2 % 16S rRNA gene sequence similarity), the sole recognized species of the genus <I>Ruania</I>. Sequence similarities between strain YIM 93306<SUP>T</SUP> and members of other genera of the suborder <I>Micrococcineae</I> were <95.2 %. On the basis of phylogenetic analysis, phenotypic characteristics and chemotaxonomic differences, a novel genus and species, <I>Haloactinobacterium album</I> gen. nov., sp. nov., is proposed. The type strain of the species is YIM 93306<SUP>T</SUP> (=DSM 21368<SUP>T</SUP> =KCTC 19413<SUP>T</SUP> =CCTCC AB 208069<SUP>T</SUP>). Based on phylogenetic characteristics and 16S rRNA gene signature nucleotide patterns, the genera <I>Ruania</I> and <I>Haloactinobacterium</I> gen. nov. are proposed to belong to a novel family, <I>Ruaniaceae</I> fam. nov.</P>

Glutathione-S-Transferase Polymorphisms (GSTM1, GSTT1 and GSTP1) and Acute Leukemia Risk in Asians: a Meta-analysis

Tang, Zhen-Hai,Zhang, Chi,Cheng, Pan,Sun, Hong-Min,Jin, Yu,Chen, Yuan-Jing,Huang, Fen Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.5

The association between glutathione-S-transferase polymorphisms (GSTM1, GSTT1 and GSTP1) and risk of acute leukemia in Asians remains controversial. This study was therefore designed to evaluate the precise association in 23 studies identified by a search of PubMed and several other databases, up to December 2013. Using random or fixed effects models odds ratios (ORs) with corresponding 95% confidence intervals (CIs) were calculated. Heterogeneity across studies was assessed, and funnel plots were constructed to test for publication bias. The meta-analysis showed positive associations between GST polymorphisms (GSTM1 and GSTT1 but not GSTP1) and acute leukemia risk [(OR=1.47, 95% CI 1.18-1.83); (OR=1.32, 95% CI 1.07-1.62); (OR=1.01, 95% CI 0.84-1.23), respectively] and heterogeneity between the studies. The results suggested that the GSTM1 null genotype and GSTT1null genotype, but not the GSTP1 polymorphism, might be a potential risk factors for acute leukemia. Further well-designed studies are needed to confirm our findings.

FEM Model-Based Investigation of Ultrasonic TOFD for Notch Inspection

Tang, Ziqiao,Yuan, Maodan,Wu, Hu,Zhang, Jianhai,Kim, Hak-Joon,Song, Sung-Jin,Kang, Sung-Sik The Korean Society for Nondestructive Testing 2014 한국비파괴검사학회지 Vol.34 No.1

A two-dimensional numerical model based on the finite element method was built to simulate the wave propagation phenomena that occur during the ultrasonic time of flight diffraction (TOFD) process. First, longitudinal-wave TOFD was simulated, and the numerical results agreed well with the theoretical results. Shear-wave TOFD was also investigated because shear waves have higher intensity and resolution. The shear wave propagation was studied using three models with different boundary conditions, and the tip-diffracted shear-to-longitudinal wave was extracted from the A-scan signal difference between the cracked and non-cracked specimens. This signal showed very good agreement between the geometrical and numerical arrival times. The results of this study not only provide better understanding of the diffraction phenomena in TOFD, but also prove the potential of shear-wave TOFD for practical application.

Prediction of the Effect of Defect Parameters on the Thermal Contrast Evolution during Flash Thermography by Finite Element Method

Yuan, Maodan,Wu, Hu,Tang, Ziqiao,Kim, Hak-Joon,Song, Sung-Jin,Zhang, Jianhai The Korean Society for Nondestructive Testing 2014 한국비파괴검사학회지 Vol.34 No.1

A 3D model based on the finite element method (FEM) was built to simulate the infrared thermography (IRT) inspection process. Thermal contrast is an important parameter in IRT and was proven to be a function of defect parameters. Parametric studies were conducted on internal defects with different depths, thicknesses, and orientations. Thermal contrast evolution profiles with respect to the time of the defect and host material were obtained through numerical simulation. The thermal contrast decreased with defect depth and slightly increased with defect thickness. Different orientations of thin defects were detected with IRT, but doing so for thick defects was difficult. These thermal contrast variations with the defect depth, thickness, and orientation can help in optimizing the experimental process and interpretation of data from IRT.

FEM Model-Based Investigation of Ultrasonic TOFD for Notch Inspection

Ziqiao Tang,Maodan Yuan,Hu Wu,Jianhai Zhang,Hak-Joon Kim,Sung-Jin Song,Sung-Sik Kang 한국비파괴검사학회 2014 한국비파괴검사학회지 Vol.34 No.1

A two-dimensional numerical model based on the finite element method was built to simulate the wave propagation phenomena that occur during the ultrasonic time of flight diffraction (TOFD) process. First, longitudinal-wave TOFD was simulated, and the numerical results agreed well with the theoretical results. Shear-wave TOFD was also investigated because shear waves have higher intensity and resolution. The shear wave propagation was studied using three models with different boundary conditions, and the tip-diffracted shear-tolongitudinal wave was extracted from the A-scan signal difference between the cracked and non-cracked specimens. This signal showed very good agreement between the geometrical and numerical arrival times. The results of this study not only provide better understanding of the diffraction phenomena in TOFD, but also prove the potential of shear-wave TOFD for practical application.

Fluorescent Sizing Agents Based on Aggregation-Induced Emission Effect for Accurate Evaluation of Permeability and Coating Property

Enqi Jin,Zhengke Wang,Manli Li,Qiaoling Hu,BEN ZHONG TANG,Jiugang Yuan 한국섬유공학회 2021 Fibers and polymers Vol.22 No.5

Warp sizing is the most important process of weaving preparation in the textile industry. Permeating and coating ofsizing paste into/on warp yarns directly determine the quality of sized yarns. However, there are many significant drawbacks,such as low accuracy and narrow variety adaptability for sizing agents and warp yarns, in the traditional determinationmethod of permeation and coating property of sizing paste. Focusing on the problem, this investigation introducedaggregation-induced emission (AIE) fluorogen to prepare a fluorescent sizing agent. The interface of sizing agent in textilecould be accurately visualized by AIE fluorogen. The three indexes to indicate the permeability and coating property ofsizing paste, i.e. permeation percentage, coating percentage and integrity percentage of sizing film, have been determinedaccurately and conveniently. This investigation efficiently solves the difficult problem of evaluating permeation and coatingproperty of sizing paste and has a significant guiding function on accurate determination of the quality of sized yarns.

Effects of Allogeneic Blood Transfusion in Patients with Stage II Colon Cancer

Meng, Jin,Lu, Xiao-Bo,Tang, Yuan-Xin,Sun, Gong-Ping,Li, Xin,Yan, Yi-Fei,Liang, Gao-Feng,Ma, Si-Ping,Li, Xiao-Xia Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.1

The aim of the present study was to determine whether allogeneic red blood cell transfusions showed a deleterious effect and what might be preoperative risk factors for blood transfusion in patients with TNM stage II colon cancer. Total 470 patients who fulfilled inclusion criteria were selected for a further 10-year follow-up study. We found that there were statistical significance between non-transfused and transfused group in mortality (P=0.018), local recurrence (P=0.000) and distant metastasis (P=0.040). Local recurrence and distant metastasis between 1 to 3 units and more than 3 units group did not show any significant differences. There was no difference in survival rate between non-transfused and 1 to 3 units group (log rank=0.031, P=0.860). The difference between different blood transfusion volume in transfused patients was found (78.77% vs 63.83%, P=0.006). Meanwhile, the significant difference of survival rate was existed between non-transfused group and more than 3 units group (84.83% vs 63.83%, P=0.002 ). Univariate analysis showed the following 3 variables to be associated with an increased risk of allogeneic blood transfusions: preoperative CEA level (P<0.05), location of tumor (P<0.01) and diameter of tumor (P<0.01). Multivariate analysis revealed that location of tumor and diameter of tumor are two independent factors for requirement of perioperative transfusions. Therefore, allogeneic transfusion increase the postoperative tumor mortality, local recurrence and distant metastasis in patients with stage II colon cancer. The postoperative tumor mortality, local recurrence and distant metastasis were not associated with the blood transfusion volume. The blood transfusion volume was associated with the survival rate. Location of tumor and diameter of tumor were the independent preoperative risk factors for blood transfusion.

Prediction of the Effect of Defect Parameters on the Thermal Contrast Evolution during Flash Thermography by Finite Element Method

Maodan Yuan,Hu Wu,Ziqiao Tang,Hak-Joon Kim,Sung-Jin Song,Jianhai Zhang 한국비파괴검사학회 2014 한국비파괴검사학회지 Vol.34 No.1

A 3D model based on the finite element method (FEM) was built to simulate the infrared thermography (IRT) inspection process. Thermal contrast is an important parameter in IRT and was proven to be a function of defect parameters. Parametric studies were conducted on internal defects with different depths, thicknesses, and orientations. Thermal contrast evolution profiles with respect to the time of the defect and host material were obtained through numerical simulation. The thermal contrast decreased with defect depth and slightly increased with defect thickness. Different orientations of thin defects were detected with IRT, but doing so for thick defects was difficult. These thermal contrast variations with the defect depth, thickness, and orientation can help in optimizing the experimental process and interpretation of data from IRT.

Comprehensive study of relationships between surface morphology parameters and contact stress

Duo Yang,Jin-Yuan Tang,Wei Zhou,Yuqin Wen 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.11

Surface roughness morphology seriously restricts workpiece interface contact performance, and therefore it is necessary to remove the fog of relationships between morphology parameters and contact stress (CS). To study the issue, use correlation analysis and BP network to set up correlation mapping model, thereafter introduce global sensitivity analysis Morris (qualitative) and Sobol (quantitative) to get “main influence parameters (MIP)”. Afterwards, construct a optimal nonlinear regression model between MIP and CS in line with complete polynomial and the idea of permutation and combination. Finally, analyze MIP influence path on CS from statistical path analysis. The paper main contributions are as follows: 1. From the perspective of theoretical analysis, a reasonable method to select parameters about CS performance characterization is proposed to avoid the empirical selection errors; 2. Correlation relationships bridge is built between MIP and CS, with quantitative influence way of parameters on contact stress studied and clarified.

A semi-analytical method of time-varying mesh stiffness in concentric face gear split-torque transmission system

Jianxiong Dong,Jin-Yuan Tang,Zehua Hu,Yi Wang 대한기계학회 2020 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.34 No.2

Concentric face gear split-torque transmission system (CFGSTTS) has great applied value in the field of aeronautical transmission due to the characteristic of high integration. Mesh stiffness, as one of the most primary sources of vibration, is vitally important for the dynamic performances of gear transmission system. The existing finite element method (FEM) and analytical method (AM) are not suitable for tackling the mesh stiffness calculation of closed-loop multi-branch system such as CFGSTTS. Thus, a semi-analytical method (SAM) is presented and verified, which combines the high precision of FEM with the high efficiency of AM. Additionally, the differences between the mesh stiffness of independent face gear drive and that of the same gear pair in CFGSTTS under accordant load is researched by applying SAM. The influence rules of distribution angle and load condition on the mesh stiffness of gear pairs considering system structure are also studied. Results demonstrate that the mesh stiffness of gear pairs in CFGSTTS is time-varying and tends to be consistent with each other by adjusting load parameters.