• 我们介绍了空间对角拟凹概念

    We introduce concepts of diagonal quasi-convexity and quasi-concavity in hyperconvex metric spaces.

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  • 凸度下前牙牙槽增大

    The protrusion of the upper incisors and the mandibular alveolar height became larger.

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  • 轧制合理分配可以有效控制板凸度

    The crown can be controlled by optimum distribution of rolling force.

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  • 提出一种全新滚子轴承凸度磨削成形技术。

    A fully new type of grinding process for the crowed raceway of cylindrical bearing is proposed.

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  • 分析表明曲线最大变化相关

    The analyzed results indicate that the maximum plate crown value of roll shape curve is related with plate width variation.

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  • 分析中厚钢板凸度计算模型给出相应在线数学模型。

    This paper analyzes a simple plate crown model and gives an on-line model relevant to it.

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  • 运用凸度方法,研究了资产负债管理利率免疫策略

    Interest rate immunization strategy in the asset-debt management is discussed using the duration convexity method.

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  • 根据里叶热传导方程导出轧辊动态凸度数学模型

    A dynamic thermal camber model of rolls has been derived according to Fourier's thermal conducting equation.

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  • 结果表明应用可以有效降低带钢,减小带钢凸度

    The results show that the use of a taper roll can reduce the edge drop and total crown of strip steel efficiently.

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  • 研究基于凸度缺口模型具有隐含期权商业银行利率风险管理问题。

    Interest rate risk management for commercial Banks with embedded option is investigated based on the convexity gap model in this paper.

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  • 轧机特点液压自动凸度控制工作的平衡与中间辊的侧移

    Special Mill Features: Hydraulic Automatic Gauge Control. Positive and Negative Work Roll Bending. Intermediate Roll Shifting.

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  • 生产线自动凸度控制系统AGC一级PLC二级计算机组成

    The automatic camber control system AGC of the line is consist of first PLC and secondary computer.

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  • 重点介绍了矫平控制、中间辊辊控制、支撑辊凸度调节控制思路方法

    It emphasized the idea and methods of leveling control, IMR bend control and BUR crown control.

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  • 高精测量实现高精薄板加工凸度精确控制关键设备。

    The high-accuracy laser measurement instrument for the thickness of plate is a key to realize the high-accuracy process in aluminum thin plate and the flat control.

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  • 通过改变轧辊、板表面应力分布,来得到理想的带材凸度、板

    Optimum profile, shape and thickness difference of strip can be obtained by means of changing stress distribution of load on the surface of strip.

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  • 摘要文章给出了超空间中的一些不等式定理极大极小不等式定理。

    In the present paper some theorems for variational inequalities and minimax inequality are obtained in hyperconvex metric spaces.

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  • 同时给出严格空间上拟扩张映象连续映象迭代序列收敛性定理

    Some convergence theorems of iterative sequence for quasi-nonexpansive mappings and continuous mappings are also obtained in the strictly convex metric Spaces.

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  • 轴承滚针凸度设计,决定滚动滚道的接触压力分布,影响其性能寿命

    Crown Drop of a Needle roller decides the pressure distribution between roller and raceway, capability and life.

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  • 采用有限差分轧辊进行了数值模拟,计算和实测值吻合较好

    The temperature field and thermal camber of the roll are made in numerical simulation by finite difference method and the calculation values coincide better with the measured values.

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  • 板材轧机一对带特殊工作辊轴向相对移动时,改变调节板形。

    The gap crown between two work rolls of plate mills and the strip shape can be adjusted by axial shifting of the work rolls, both of them have a special contour.

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  • 实际工程中,人为摸索经验积累来估计,不仅效率成本而且误差

    In practical process, the crown is designed by trial and accumulative experience, leading to low efficiency, high cost and big error.

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  • 热轧板过大,楔形严重凸度不对称有局部高点均可造成罩式退火产生粘结

    Excessive convexity, severe wedge, dissymmetric convexity and partial protrusion will result in sticking of sheets during annealing in the bell-type furnace.

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  • 平坦控制目标也是热连轧机工作辊的弯辊进行设定调整基础

    Crown and flatness are the targets of shape control, also are the foundation of the setting and the adjusting of bending forces in hot strip mills.

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  • 良好的工作冷却凸度控制降低工作辊消耗控制板提高生产收得率有效措施

    Excellent work roll cooling and thermal crown control are the effective measures for reducing work roll consumption, controlling plate shape and enhancing production yield.

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  • 论述采用阶梯支承必要性提出接触、阶梯工作凸度计算方法

    The paper discusses the necessity of applying double stepped backup rolls, and describes the methods for calculating the contact length and stepped depth and work roll crown.

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  • 首次推导出了CVC轧辊辊轴向移动之间非线性关系,提出凸度极值概念

    The nonlinear relationship between roll crown of CVC rolls and their shift amount is first deduced. The concept of crown limit is first given in the paper.

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  • 对比分析了高速钢铬铁轧辊摩擦系数、氧化特征、抗事故性等方面区别

    Some differences between the rolls of high-speed steel and high-chrome iron in hot crown, friction coellieient, characteristics of oxidative film and anti-accident and so on are analyzed.

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  • 轧辊磨床工业生产中不可缺少一种重要设备用于磨削各种具有中凸度轧辊

    The roll grinder is an indispensable important equipment in the industry, which grinds all kinds of dished or convex roller.

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  • 采用具有较高精样条有限条法轧制过程中工作凸度进行计算预报

    The spline finite strip method, which has a high precision, was adopted to calculate and predict the work roll temperature field and crown.

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  • 采用具有较高精样条有限条法轧制过程中工作凸度进行计算预报

    The spline finite strip method, which has a high precision, was adopted to calculate and predict the work roll temperature field and crown.

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