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Development of PLC-based Tension Control System

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Chinese Journal of Aeronautics 2007年第3期20卷 266-271页

作者： REN Sheng-le LU Hua WANG yong-zhang FU hong-ya Department of Mechanical Engineering Harbin Institute of Technology Harbin 150001 China

Fiber winding tension is an important factor in the molding techniques of composite material which influences the quality of winding product directly, and the tension control is a key technique in fiber winding techniques. This paper introduces a closed-loop tension control system with the programmable logic controller （PLC） with function modules as its control kernel, the alternating current （AC） servo motor as execute element and the radius-following device to accomplish the real-time radius compensation. The mechanism of the tension control system is analyzed and the numerical model is set up. The compensation technique of the radius of the scroll is analyzed. Experimental results show that the system is well qualified with high control precision and high reaction speed.

关键词： tension control PLC numerical control winding machine AC digital servo motor

Development of a PC-based Open Architecture Software-CNC System

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Chinese Journal of Aeronautics 2007年第3期20卷 272-281页

作者： MA Xiong-bo HAN Zhen-yu WANG yong-zhang FU hong-ya School of Electromechanical Engineering Harbin Institute of Technology Harbin 150001 China

As a key te..hnology in the field of advanced manufacturing, an open architecture controller is studied. In order to develop an open architecture software-CNC system on personal computer （PC） according to open modular architecture controllers （OMAC）. First, the software and hardware platform is chosen and software realization methodology for the CNC system is determined. Second, static modeling methods of an open architecture controller inclusive of object-oriented （OO） programming technology, dynamic link library （DLL） technology and system modules partition are investigated. Third, the dynamical behavioral modeling and the data flow representation of open architecture controller are discussed, which are both described in hierarchy fmite state machine （FSM） model. Fourth, a reusable software module model is established to develop software function module library. Finally, a 3-axis milling machine tool test-bed, named for HIT-CNC, is successfully designed by means of the constructed software function module library and the system configuring method. The experimental results show that, besides increasing the degree of reusability and openness, application of above-mentioned method- ology leads to significant decrease of development time as well as maintenance cost.

关键词： open architecture controller PC soflware-CNC behavioral model OMAC machine tool

Combined Effects of A Body Shape Index and Serum C-reactive Protein on Ischemic Stroke Incidence among Mongolians in China

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Biomedical and Environmental Sciences 2019年第3期32卷 169-176页

作者： WANG Guang Li zhang Rui ZHOU Yi Ting WANG Ai Li XU Tian zhang Ming Zhi LI hong Mei zhang yong hong Department of Epidemiology School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases Medical College of Soochow University Department of Neurology Affiliated Hospital of Nantong University

Objective We aimed to evaluate the combined effects of a high body shape index(ABSI) and a high serum C-reactive protein(CRP) level on the incidence of ischemic stroke in a Mongolian population in China. Methods A prospective cohort study was conducted among 2,589 participants from June 2002 to July 2012 in Inner Mongolia, China. The participants were categorized into 4 groups according to their level of ABSI and CRP. Cox proportional hazards models were used to assess the hazard ratios(HRs) and 95% confidence intervals(CIs) for ischemic stroke among all groups. Results The multivariate adjusted HRs(95% CI) of ischemic stroke for high ABSI and high CRP level were 1.46(0.89-2.39) and 1.63(0.95-2.79), respectively. Compared with the low ABSI/low CRP level group, the multivariate adjusted HRs(95% CI) of ischemic stroke in the low ABSI/high CRP, high ABSI/low CRP, and high ABSI/high CRP groups were 1.04(0.46-2.35), 1.06(0.58-1.95) and 2.52(1.27-5.00), respectively. The HR of ischemic stroke for the high ABSI/high CRP level group was the highest and most statistically significant. Conclusion We found that participants with simultaneously high ABSI and high CRP levels had the highest risk of ischemic stroke in the Mongolian population. Our findings suggest that the combination of high ABSI and high CRP levels may increase the risk of ischemic stroke.

关键词： A body shape index C-reactive protein Ischemic stroke

Clustering of Cardiovascular Risk Factors and Diabetes： A Prospective Cohort Study on the Inner Mongolian Population in China

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Biomedical and Environmental Sciences 2018年第10期31卷 749-756页

作者： WANG Ting Ting LIN Bo CUI Wen Xiu zhang Ming Zhi zhang yong hong zhang Shao Yan Department of Epidemiology School of Public Health andJiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases Medical College of Soochow University Suzhou 215123 Jiangsu China Harbin Center for Disease Control and Prevention Harbin 150000 Heilongjiang China

Objective To evaluate the effect of clustering of cardiovascular risk factors（CVRFs） on type 2 diabetes mellitus（T2 DM） incidence and identify some high predictive clusters in the Inner Mongolian population in China. Methods A total of 1,884 Mongolian individuals aged 20 years or above were followed up from 2002 to 2013 and included in the final analysis. We categorized the participants into two subgroups according to the study outcome event. A Cox proportional hazards model was used to evaluate the effect of clustering of CVRFs on the incidence of T2 DM. Areas under the curve were used to compare the effect of every cluster on T2 DM and identify those having higher predictive value. Results We found 203 persons with T2 DM. Subjects with incident T2 DM tended to be older, had a higher prevalence of drinking, had higher systolic and diastolic pressures; total cholesterol, triglyceride, low-density lipoprotein cholesterol, and C-reactive protein levels; waist circumference; body mass index; and heart rate and lower HDL-C level than did those without T2 DM. The multivariable adjusted hazard ratio（95% confidence interval） of T2 DM was calculated based on comparisons with subjects with 0 CVRFs; in participants with 2 and ≥ 3 factors, the adjusted hazard ratios were 2.257（1.448, 3.518） and 3.316（2.119, 5.188）, respectively. Conclusion The clustering of CVRFs increased the risk of T2 DM. On the basis of fast heart rate, the cluster of abdominal obesity and other CVRFs had higher predictive value for T2 DM than the other three CVRF clusters.

关键词： Type 2 diabetes Cardiovascular risk factors Abdominal obesity Heart rate

Identification of thermal effects involved in DSC experiment on Al-Cu-Mg-Ag alloys with high Cu:Mg ratio

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International Journal of Minerals,Metallurgy and Materials 2011年第6期18卷 671-675页

作者： Jian-bo zhang yong-an zhang Bao-hong Zhu Feng Wang Zhi-hui Li Xi-wu Li Bai-qing Xiong State Key Laboratory of Nonferrous Metals and Processes General Research Institute for Non-ferrous Metals Beijing 100088 China

Precipitation reactions in the differential scanning calorimetry （DSC） of an Al-Cu-Mg-Ag alloy were identified by analyzing the results from hardness test,electrical conductivity test,and transmission electron microscope （TEM） *** is discovered that thermal effects can be identified through selected area electron diffraction and bright-field *** reaction peaks around 171,231,and 276℃ can be attributed to a structural rearrangement of coherent zones,to the precipitation of Ω phases,and to the precipitation of Ω and θ＇ and possible combination with the transition of θ＇→θ,*** addition,the hardness and electrical conductivity of the alloy change proportionately with the progression of reactions during the heating *** phenomenon can be attributed to the evolution of the micro-structure.

关键词： aluminum alloys thermal effects identification differential scanning calorimetry microstructure

Validation of the China-PAR Equations for Cardio-cerebrovascular Risk Prediction in the Inner Mongolian Population

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Biomedical and Environmental Sciences 2018年第6期31卷 463-466页

作者： ZENG Ni Mei ZHENG Xiao Wei PENG Hao JIAO Yang LI hong Mei zhang Ming Zhi WANG Ai Li zhang yong hong Department of Epidemiology School of Public Health Medical College of Soochow University Department of Cardiovascular Disease Second Affiliated Hospital Soochow University

The objective of this study was to evaluate the usefulness of the China-PAR equations in predicting the 10-year risk of cardiovascular disease（CVD） in the Inner Mongolians population. A population-based, prospective cohort of 2,589 Mongolians were followed up from 2003 to *** were categorized into 4 subgroups according to their 10-year CVD risks calculated using the China-PAR equations：〈 5%, 5%-9.9%,10%-19.9%, and ≥ 20%. The China-PAR equations discriminated well with good C statistics（range,0.76-0.86）. The adjusted hazard ratios for CVD showed an increasing trend among the 4 subgroups（P for trend ＆lt; 0.01）. However, the China-PAR equations underestimated the 10-year CVD risk in Mongolians, and the calibration was unsatisfactory（Hosmer-Lemeshow χ^2 = 19.98, P ＆lt; 0.01 for men, χ^2 = 46.58, P 〈 0.001 for women）. The performance of the China-PAR equations warrants further validation in other ethnic groups in China.

关键词： In CVD PAR

Combined Influence of Insulin Resistance and Inflammatory Biomarkers on Type 2 Diabetes:A Population-based Prospective Cohort Study of Inner Mongolians in China

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Biomedical and Environmental Sciences 2018年第4期31卷 300-305页

作者： QIU Qiao Yan zhang Bei Lei zhang Ming Zhi WU Jia Hui ZHOU Jing Wen LIANG Zhu zhang yong hong zhang Shao Yan Department of Epidemiology School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases Medical College of Soochow University Suzhou 215123 Jiangsu China The Second Affiliated Hospital of Zhejiang Chinese Medical University Hangzhou 310000 Zhejiang China Wujin District Center for Disease Control and Prevention Changzhou 213159 Jiangsu China Nanjing Brain Hospital Nanjing 210029 JiangsuChina Kunshan Center for Disease Control and Prevention Suzhou 215123 Jiangsu China

This prospective study was designed to examine the combined influence of insulin resistance（IR）and inflammatory biomarker levels on type 2 diabetes mellitus（T2DM）among 1,903Inner Mongolians.

关键词： CRP DM Combined Influence of Insulin Resistance and Inflammatory Biomarkers on Type 2 Diabetes A Population-based Prospective Cohort Study of Inner Mongolians in China IR

Combined Effects of Family History of Cardiovascular Disease and Serum C-reactive Protein Level on the Risk of Stroke: A 9.2-year Prospective Study among Mongolians in China

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Biomedical and Environmental Sciences 2017年第9期30卷 632-640页

作者： ZHU Zheng Bao HUANGFU Xin Feng Zhong Chong Ke ZHOU Yi Peng TIAN Yun Fan BUREN Batu XU Tian WANG Ai Li LI hong Mei zhang Ming Zhi zhang yong hong Department of Epidemiology School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases Medical College of Soochow University Department of Epidemiology Tongliao Center for Disease Prevention and Control Department of Neurology Affiliated Hospital of Nantong University

Objective We aimed to evaluate the combined effect of a family history of cardiovascular disease（CVD） and high serum C‐reactive protein（CRP） on the stroke incidence in an Inner Mongolian population in China. Methods A prospective cohort study was conducted from June 2002 to July 2012, with 2,544 participants aged 20 years and over from Inner Mongolia, China. We categorized participants into four groups based on the family history of CVD and CRP levels. Results We adjusted for age; sex; smoking; drinking; hypertension; body mass index; waist circumference; and blood glucose, triglycerides, low‐density lipoprotein cholesterol, and high‐density lipoprotein cholesterol levels. Compared with the group with no family history of CVD/low CRP levels, the group with family history of CVD/high CRP levels had a hazard ratio（HR） of 1.78 [95% confidence interval（CI）, 1.03‐3.07; P = 0.039] of stroke, and an HR of 2.14（95% CI, 1.09‐4.20; P = 0.027） of ischemic stroke. The HRs of hemorrhagic stroke for the other three groups were not statistically significant（all P 〉 0.05）. Conclusion Participants with both a family history of CVD and high CRP levels had the highest stroke incidence, suggesting that high CRP levels may increase stroke risk, especially of ischemic stroke, among individuals with a family history of CVD.

关键词： Family history of cardiovascular disease C‐reactive protein Stroke Prospective study

Measures of Abdominal Adiposity and Risk of Stroke:A Dose-Response Meta-analysis of Prospective Studies

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Biomedical and Environmental Sciences 2016年第1期29卷 12-23页

作者： Zhong Chong Ke Zhong Xiao Yan Xu Tan zhang yong hong Department of Epidemiology School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric DiseasesMedical College of Soochow UniversitySuzhou 215123JiangsuChina School for Radiological&Interdisciplinary sciences(RAD-X) and School of Radiation Medicine and ProtectionSoochow UniversitySuzhou 215123JiangsuChina

Objective Waist circumference, waist-to-hip ratio and waist-to-height ratio, which are the indicators or measures of abdominal adiposity, have long been hypothesized to increase the risk of stroke; yet evidence accumulated till date is not conclusive. Here, we conducted a dose-response meta-analysis to summarize evidences of the association between these measures of abdominal adiposity and the risk of stroke. Methods PubMed and Web of Science databases were searched from inception to May 2015. Two investigators independently conducted the study selection and data extraction. Dose-response relationships were assessed by the generalized least squares trend estimation, while the summary effect estimates were evaluated by the use of fixed- or random-effect models. Subgroup and sensitivity analyses were performed to assess the potential sources of heterogeneity and the robustness of the pooled estimation. Publication bias of the literature was evaluated using Begg＇s and Egger＇s test. Results Altogether 15 prospective cohort studies were identified in this study. The summary of relative risks （95% confidence intervals） of stroke for the highest versus the lowest categories was 1.28 （1.18-1.40） for waist circumference, 1.32 （1.21-1.44） for waist-to-hip ratio, and 1.49 （1.24-1.78） for waist-to-height ratio. For a 10-cm increase in waist circumference, the relative risk of stroke increased by 10%; for a 0.1-unit increase in waist-to-hip ratio, the relative risk increased by 16%; and for a 0.05-unit increase in waist-to-height ratio, the relative risk increased by 13%. There was evidence of a nonlinear association between waist-to-hip ratio and stroke risk, Pnonlinearity=0.028, Conclusion Findings from our meta-analysis indicated that waist circumference, waist-to-hip ratio, and waist-to-height ratio were positively associated with the risk of stroke, particularly ischemic stroke.

关键词： Abdominal adiposity Waist circumference Waist-to-hip ratio Waist-to-height ratio Stroke Cohort studies Meta-analysis