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Global Burden of Disease, Injury and Risk Factor Study 2010: Its Policy Implications for China

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Biomedical and Environmental Sciences 2014年第1期27卷 45-48页

作者： YU Shi Cheng TAN Feng ZHOU Mai Geng LIU Shi Wei zhu xiao jun zhu Yu Ling Chinese Center for Disease Control and Prevention (China CDC) National Institute for Occupational Health and Poison Control China CDC National Center for Non-communicable Chronic Disease Control China CDC

Results of the Global Burden of Disease, Injury and Risk Factor Study 2010 （GBD 2010） were released on December 13, 2012 in London, a series of papers concerning the project have been published in the Lancet[1]. Research findings of the project have been reported in the United States, the United Kingdom, Indonesia, China[2] and Australia, and widely applied across the world. In addition, the GBD 2010 will see more countries report their project research findings and implement these findings in the near future. The GBD 2010 provides researchers, administrators and policymakers with new and critical sources for their research, teaching and policymaking.

关键词： 2010 Global Burden of Disease Its Policy Implications for China

In vivo study of extracellular matrix coating enhancing fixation of the pedicle screw-bone＇s interface

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Chinese Medical Journal 2011年第23期124卷 3945-3952页

作者： LIU Guo-min ZHANG Xing-yi XU Chuan-jie zhu xiao-min WANG jun LIU Yi Department of Ortiaopedics Department of Thoracic Surgery Changchun Jilin 130041 China

Based on in vivo research on the effect of the coating of the extracellular matrix composition of pedicle screws on the conduction and induction of bone formation in young sheep, the aim of this study was to investigate the application of coated pedicle screws in sheep with scoliosis whose spines are under constant development. Methods Four groups of pedicle screws were randomly implanted into bilateral L2-L5 pedicles of 2.5- to 3-month-old sheep. A static experiment was performed on one side and a loading test was performed on the other side by implanting connecting rods at the L2-L3 and L4-L5 segments. The changes in the force on the coated screws and the combination of the surface of the coated screws with the surrounding bone in the growth process of young sheep＇s spines with aging were observed. After 3 months, the lumbar vertebrae with the screws were removed and examined by micro-CT, histological, and biomechanical analyses. Results Under nonloading conditions, there is bone formation around the surfaces of coated screws. The bone forming on the surface of collagen/chondroitin sulfate/hydroxyapatite coating of pedicle screws is the most, the one of the collagen / chondroitin sulfate coating and hydroxyapatite coating is followed, and no significant difference between the two groups. In terms of the trabecular bone morphology parameters of the region of interest around the surface of the pedicle screws, such as bone mineral content, bone mineral density, tissue mineral content, tissue bone mineral density, bone volume fraction, and connection density, those associated with collagen/chondroitin sulfate/hydroxyapatite coatings are largest and those unassociated with coatings are smallest. Under nonloading conditions, the pullout strength of the collagen/chondroitin sulfate/hydroxyapatite-coated screws was largest, and that of the uncoated screws was minimal （P 〈0.01）. Under loading conditions, the maximum pullout strength of each group of pedicle screws was less

关键词： hydroxyapatite collagen chondroitin sulfate micro-CT biomechanics

采用Benders分解的5G核心网用户面动态部署算法

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浙江大学学报（工学版） 2023年第3期57卷 625-631页

作者：陈俊杰李洪均朱晓军南通大学信息科学技术学院江苏南通226019 南通先进通信技术研究院有限公司江苏南通226019

为了应对5G网络时变的数据流量负载,同时满足5G低时延业务需求,提出基于Benders分解的用户面功能(UPF)部署与流量调度多阶段规划算法,以实现边缘网络环境下5G核心网用户面的动态部署.以最小化边缘服务器能耗、UPF部署成本及用户面数据... 详细信息

为了应对5G网络时变的数据流量负载,同时满足5G低时延业务需求,提出基于Benders分解的用户面功能(UPF)部署与流量调度多阶段规划算法,以实现边缘网络环境下5G核心网用户面的动态部署.以最小化边缘服务器能耗、UPF部署成本及用户面数据时延为目标,考虑部署决策的延迟影响,建立UPF部署和流量调度多阶段规划模型.用Benders分解算法,将模型分解为UPF部署主问题和一系列流量调度子问题,交替迭代求解主问题和子问题,以获得最优的UPF部署和流量调度.仿真结果表明,所提算法在保证求解精度的同时具有较快的收敛速度;与逐阶段求解方法和基于马尔可夫决策过程(MDP)的启发式算法相比,所提算法分别节省了10.4%和5.1%的总运营成本.

关键词：核心网用户面功能(UPF)部署能耗时延 Benders分解

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面向中亚、俄罗斯汉语国际教育案例编写构想

新疆师范大学学报（哲学社会科学版） 2016年第2期37卷 146-150页

作者：朱晓军新疆大学国际文化交流学院新疆乌鲁木齐830046

案例分析法是汉语国际教育硕士专业和国际汉语教师培训的一种重要的培养模式和教学方法。文本介绍了案例分析法的来源、特点,国内4所较早采用案例分析法的高校在案例教学和案例库建设中所做的工作。在中国新疆与中亚、俄罗斯毗邻的地缘... 详细信息

案例分析法是汉语国际教育硕士专业和国际汉语教师培训的一种重要的培养模式和教学方法。文本介绍了案例分析法的来源、特点,国内4所较早采用案例分析法的高校在案例教学和案例库建设中所做的工作。在中国新疆与中亚、俄罗斯毗邻的地缘优势以及建设"丝绸之路经济带"构想的大背景下,文本阐明了编写针对中亚、俄罗斯"国别化"汉语国际教育案例的必要性,以及案例库建设的初步构想。

关键词：中亚俄罗斯汉语国际教育案例库

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高速加工中心主轴系统径向刚度的研究

煤矿机械 2010年第7期31卷 51-53页

作者：祝小军盐城工学院江苏盐城224051

根据高速切削加工中心的主轴结构特点和使用要求,选择径向刚度为研究对象,论述主轴系统径向刚度的工程定义。重点研究刀杆与主轴之间的锥面配合、端面配合对径向刚度特性的影响,选择锥面之间五种配合的特殊状况,通过一系列试验,获取相... 详细信息

根据高速切削加工中心的主轴结构特点和使用要求,选择径向刚度为研究对象,论述主轴系统径向刚度的工程定义。重点研究刀杆与主轴之间的锥面配合、端面配合对径向刚度特性的影响,选择锥面之间五种配合的特殊状况,通过一系列试验,获取相应的数据并绘制成图表,进行分析总结得出有关结论。最后利用一个高速切削加工实例,加以说明和验证。

关键词：高速加工径向刚度数控切削主轴结构