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| 1 | Research on the Influence of Cutting Condition on the Surface Microstruct ure of Ultra-thin Wall Parts in Ultrasonic Vibration Cutting显示文摘In many fields of high-tech industry the ultra-t hi n wall parts are employed. In this paper the experiments were carried out to dis cuss the surface microstructure of the camera’s guided drawtube by applying ult rasonic vibration cutting device to the traditional lathe. The influence rule of the cutting condition on the surface roughness was put forward, which was drawn by comparing the ultrasonic cutting with the common cutting by use of the cemen ted carbide tool and the polycrystalline diamond (PCD) tool. The test results sh owed that the ultrasonic cutting performs better than the common cutting in the same condition. According to the test results analyzing, the surface characteriz ation is influenced clearly by the rigidity of the acoustic system and the machi ne tool, as well the setting height of the tool tip. Otherwise, the dense regula r low frequency vibration ripples will be scraped on the machined surface. When the tool tip is set higher than the rotating center of the work piece by three t imes of the amplitude of ultrasonic vibration, the vibration ripples behave alig ht; they turn light and shade alternatively when the tool tip is lower than the rotating center of the work piece by three times of the amplitude of ultrasonic vibration. According to the test result analyzing, the following conclusions are put forward: 1) The surface roughness in ultrasonic cutting is better than that in common cutting. Under a one third critical cutting velocity, the value of th e surface roughness in ultrasonic cutting rise slightly along with the cutting v elocity, while in common cutting it decreases contrast to the cutting velocity; the curves of the surface roughness in ultrasonic cutting and common cutting see m to be alike, both increase along with the feed rate and the cutting depth, but the value in ultrasonic cutting is smaller in the same condition.2) The influen ce of the coolant on the surface roughness cannot be ignored. The kerosene can b e employed to improve the surface roughness in ultrasonic machining.3) In ultras onic cutting process of aluminum alloy ultra-thin wall work piece, the PCD tool performs better than the cemented carbide tools.4) The vibration ripples result from the not enough rigidity of the acoustic system and the improper setting he ight of the tool tip. The departure of the tool tip from the rotating center of the work piece to some extent causes the vibration ripples on the machined surfa ce. | GAO Guo-fu, ZHAO Bo, JIAO Feng, LIU Chuan-shao (Department of Mechanical Engineering, Jiaozuo Institute of Technolog y, Henan 454000, China) | 2002 | 厦门大学学报(自然科学版)2002，41，S1： | 9 |
| 2 | Interleukin-10 gene polymorphisms and hepatocellular carcinoma susceptibility:A meta-analysis显示文摘AIM: To assess the association between Interleu-kin-10 (IL-10) gene IL-10-1082 (G/A), IL-10-592(C/A), IL-10-819 (T/C) polymorphisms and hepatocellular carcinoma (HCC) susceptibility.METHODS: Two investigators independently searched the Medline, Embase, China National Knowledge Infrastructure, and Chinese Biomedicine Database. Summary odds ratios (ORs) and 95% conf idence intervals (95% CIs) for IL-10 polymorphisms and HCC were cal-culated in a fixed-effects model (the Mantel-Haenszel method) and a random-effects model (the DerSimonian and Laird method) when appropriate. RESULTS: This meta analysis included seven eligiblestudies, which included 1012 HCC cases and 2308 controls. Overall, IL-10-1082 G/A polymorphism was not associated with the risk of HCC (AA vs AG + GG, OR = 1.11, 95% CI = 0.90-1.37). When stratifying for ethnicity, the results were similar (Asian, OR = 1.12, 95% CI = 0.87-1.44; non-Asian, OR = 1.10, 95% CI = 0.75-1.60). In the overall analysis, the IL-10 polymorphism at position -592 (C/A) was identified as a genetic risk factor for HCC among Asians; patients carrying the IL-10-592*C allele had an increased risk of HCC (OR = 1.29, 95% CI = 1.12-1.49). No association was observed between the IL-10-819 T/C polymorphism and HCC susceptibility (TT vs TC + CC, OR = 1.02, 95% CI = 0.79-1.32).CONCLUSION: This meta-analysis suggests that IL-10-592 A/C polymorphism may be associated with HCC among Asians. IL-10-1082 G/A and IL-10-819 T/C polymorphisms were not detected to be related to the risk for HCC. | Yong-Gang Wei, Fei Liu, Bo Li, Xi Chen, Yu Ma, Lv-Nan Yan, Tian-Fu Wen, Ming-Qing Xu, Wen-Tao Wang, Jia-Yin YangYong-Gang Wei, Fei Liu, Bo Li, Xi Chen, Yu Ma, Lv-Nan Yan, Tian-Fu Wen, Ming-Qing Xu, Wen-Tao Wang, Jia-Yin Yang, Department of Liver and Vascular Surgery, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Prov- ince, China Author contributions: Wei YG and Liu F designed the study, collected and analyzed the data and wrote the manuscript Li B collected and analyzed the data and wrote the manuscript Chen X and Ma Y collected and analyzed the data Yan LN analyzed the data and contributed to the discussion Wen TF and Xu MQ revised the manuscript Wang WT and Yang JY contributed to the discussion Wei YG and Liu F contributed equally to this work. | 2011 | World Journal of Gastroenterology2011，17，34： | 3 |
| 3 | Influence of Eutrophication on the Distribution of Total Mercury and Methylmercury in Hydroelectric Reservoirs显示文摘 | Meng Bo Feng X B Chen C X Qiu G L Sommar J Guo Y N Liang P Wan Q | 2010 | EN2010，，5： | 2 |
| 4 | Risk stratification in symptomatic intracranial atherosclerotic disease with conventional vascular risk factors and cerebral haemodynamics显示文摘Background and purpose Symptomatic intracranial atherosclerotic stenosis(sICAS)is associated with a considerable risk of recurrent stroke despite contemporarily optimal medical treatment.Severity of luminal stenosis in sICAS and its haemodynamic significance quantified with computational fluid dynamics(CFD)models were associated with the risk of stroke recurrence.We aimed to develop and compare stroke risk prediction nomograms in sICAS,based on vascular risk factors and these metrics.Methods Patients with 50%-99%sICAS confirmed in CT angiography(CTA)were enrolled.Conventional vascular risk factors were collected.Severity of luminal stenosis in sICAS was dichotomised as moderate(50%-69%)and severe(70%-99%).Translesional pressure ratio(PR)and wall shear stress ratio(WSSR)were quantified via CTA-based CFD modelling;the haemodynamic status of sICAS was classified as normal(normal PR&WSSR),intermediate(otherwise)and abnormal(abnormal PR&WSSR).All patients received guideline-recommended medical treatment.We developed and compared performance of nomograms composed of these variables and independent predictors identified in multivariate logistic regression,in predicting the primary outcome,recurrent ischaemic stroke in the same territory(SIT)within 1 year.Results Among 245 sICAS patients,20(8.2%)had SIT.The D2H2A nomogram,incorporating diabetes,dyslipidaemia,haemodynamic status of sICAS,hypertension and age≥50 years,showed good calibration(P for Hosmer-Lemeshow test=0.560)and discrimination(C-statistic 0.73,95%CI 0.60 to 0.85).It also had better performance in risk reclassification and provided larger net benefits in decision curve analysis,compared with nomograms composed of conventional vascular risk factors only,and plus the severity of luminal stenosis in sICAS.Sensitivity analysis in patients with anterior-circulation sICAS showed similar results.Conclusions The D2H2A nomogram,incorporating conventional vascular risk factors and the haemodynamic significance of sICAS as assessed in CFD models,could be a useful tool to stratify sICAS patients for the risk of recurrent stroke under contemporarily optimal medical treatment. | Xuan Tian Hui Fang Linfang Lan Hing Lung Ip Jill Abrigo Haipeng Liu Lina Zheng Florence S Y Fan Sze Ho Ma Bonaventure Ip Bo Song Yuming Xu Jingwei Li Bing Zhang Yun Xu Yannie O Y Soo Vincent Mok Ka Sing Wong Thomas W Leung Xinyi Leng | 2023 | Stroke & Vascular Neurology2023，8，1： | 2 |
| 5 | Microproteinuria for detecting calcineurin inhibitor-related nephrotoxicity after liver transplantation显示文摘AIM: To investigate whether microproteinuria could be used as an early and sensitive indicator to detect calcineurin inhibitor (CNI)-related nephrotoxicity after liver transplantation. METHODS: All liver transplant recipients with normal serum creatinine (SCr) and detectable microproteinuria at baseline were included in this study. The renal function was monitored by the blood clearance of 99mTc-diethylenetriaminepentaacetic acid every 6 mo. Microproteinuria, SCr and blood urea nitrogen (BUN) were measured at entry and at subsequent follow-up visits. The patients were divided into different groups according to the mean values of glomerular filtration rate (GFR) at the follow-up time points: Group 1, GFR decreased from baseline by 0%-10%; Group 2, GFR decreased from baseline by 11%-20%; Group 3, GFR decreased from baseline by 21%-40%; Group 4, GFR decreased from baseline by > 40% and/or SCr was increasing. RESULTS: A total of 143 patients were enrolled into this study (23 females and 120 males). The mean follow-up was 32 mo (range 16-36 mo). Downward trends in renal function over time were observed in the study groups. SCr and BUN increased significantly only in Group 4 patients (P < 0.001). β2-microglobulin (β2m) and α1-microglobulin (α1m) significantly increased with the subtle change of renal function in recipients who were exposed to CNI-based immunosuppression regimens. The reductions in GFR were closely correlated with elevated α1m (r2 = -0.728, P < 0.001) and β2m (r2 = -0.787, P < 0.001). CONCLUSION: β2m and α1m could be useful as early and sensitive indicators of CNI-induced nephrotoxicity. | Jing Li Bin Liu Lu-Nan Yan Lan-Lan Wang Wan Y Lau Bo Li Wen-Tao Wang Ming-Qing Xu Jia-Yin Yang Fu-Gui Li | 2009 | World Journal of Gastroenterology2009，15，23： | 2 |
| 6 | Influence of geometrical distribution of rock joints on deformational behavior of underground opening显示文摘 | JIANG YUJING TANABASHI Y LI Bo | 2006 | Tunnelling and Underground Space Technology2006，21，5： | 1 |
| 7 | The coolstreaming: Design, theory and practice显示文摘 | XIE Su-su LI Bo KEUNG G Y | 2007 | IEEE Transactions on Multimedia Special Issue on Content Storage and Delivery in Peer-to-Peer Network2007，9，8： | 1 |
| 8 | Response of realistic soil for GPRapplications with 2-D FDTD 显示文摘 | Bo Y Rappaport C | 2001 | Geoscience andRemote Sensing IEEE Transactions on2001，39，11： | 1 |
| 9 | The Protective role of TLR3 and TLR9 ligands in human pharyngeal epithelial cells infected with influenza a virus显示文摘 | Han Y Bo ZJ Xu MY | 2014 | Korean Physiol Pharmacol2014，18，3： | 1 |
| 10 | Spatial and temporal variation of historical anthropogenic NMVOCs emission inventories in China 显示文摘 | Bo Y Cai H Xie S D | 2008 | Atmespheric Chemistry and physics2008，8，11： | 1 |
| 11 | Aerosol-chamber study of the a-pinene/O3reaction:influence of particleacidity on aerosol yields and products显示文摘 | O Bo咬ge Y Iinuma Thomas Gnauk | 2004 | Atmospheric Environment2004，38，5： | 1 |
| 12 | Emergence of a highly pathogenic porcine reproductive and respiratory syndrome virus in the Mid-Eastern region of China显示文摘 | Li Y Wang X Bo K | 2007 | Vet J2007，174，3： | 1 |
| 13 | Design and Analysis of a Grid-Connected Photovoltaic Power System显示文摘 | Bo Y Wuhua L Yi Z | 2010 | IEEE Transactions on Power Electronics2010，25，4： | 1 |
| 14 | c-Fos,N-methyl-d-aspartate receptor 2C,GABA-A-alphal immonore-activity,seizure latency and neuronal injury following single or recurrent neonatal seizures in hipocampus of Wistar rat显示文摘 | Ni H Jiang Y W Bo T | 2005 | Neurosci Lett2005，380，12： | 1 |
| 15 | Emergence of a highly pathoge- nie porcine reproductive and respiratory syndrome virus in the Mid-Eastern region of China显示文摘 | LI Y WANG X BO K | 2007 | Vet J2007，174，3： | 1 |
| 16 | Phosphopeptides derived from hen egg yolk phosvitin:effect of molecular size on the calcium-binding properties显示文摘 | JIANG Bo MINE Y | 2001 | Bioscience Biotechnology and Biochemistry2001，65，： | 1 |
| 17 | Frequency of mtDNA A1555G and A7445G mutations among children with prelingual deafness in Turkey显示文摘 | M. Tekin T. Duman G. Bo?o?lu A. ?ncesulu E. ?omak S. Fitoz E. Y?lmaz ?. ?lhan N. Akar | 2003 | European Journal of Pediatrics2003，，3： | 1 |
| 18 | Preparation and properties of super-hydrophobic coating on magnesium alloy显示文摘 | Bo Y Liang F Jia H | 2010 | Appl Surf Sci2010，257，5： | 1 |
| 19 | Studies on the supramolecular interaction between napropamide and β-cyclodextrin by spectrofluorimetry and its analytical application 显示文摘 | Bo T Liu WL Wang Y | 2004 | Anal Chim Acta2004，509，： | 1 |
| 20 | Support vector machines with genetic fuzzy feature transformation for biomedical data classification显示文摘 | Bo J Tang Y C Zhang Y Q | 2007 | Information Sciences2007，177，2： | 1 |
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