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equation
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For these polynomials we prove an integral representation, a combinatorial formula, Pieri rules, Cauchy identity, and we also show that they do not satisfy any rationalq-difference equation.
      
The Yang-Baxter equation admits two classes of elliptic solutions, the vertex type and the face type.
      
The inverse conductivity problem to the the elliptic equation ${\rm div}((1+(k-1)\chi_D)\nabla u)=0\ {\rm in }\ \Omega$ is considered.
      
As applications, the wave equation on?+ × ?+ and the heat equation in a semi-infinite rod are considered in detail.
      
Pointwise fourier inversion: A wave equation approach
      
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The kinematics and dynamics of the let-off motion mechanism on toyoda looms in G type is discussed. In Fig. 4 is given the relationship of the turning angles of the friction ratchet wheel (α) and the moving distance of the connecting rod (y) at different warp beam diameters of d. In Fig. 9 is given the relationship of the warp tension from the back rest at different warp beam diameters of d. In equation 14, it is proved that when the guiding-warp roller and the warp beam pushing lever are used the range...

The kinematics and dynamics of the let-off motion mechanism on toyoda looms in G type is discussed. In Fig. 4 is given the relationship of the turning angles of the friction ratchet wheel (α) and the moving distance of the connecting rod (y) at different warp beam diameters of d. In Fig. 9 is given the relationship of the warp tension from the back rest at different warp beam diameters of d. In equation 14, it is proved that when the guiding-warp roller and the warp beam pushing lever are used the range of the warp tension variation T may be greatly reduced. The method for improving the let-off motion mechanism of the looms is suggested at the end of this paper.

本文进行了該式送经机构的运动分析及动力分析在图4中表示出在不同的經軸直徑时锯止轮所轉过的角度α及釣魚杆上升距离y之間的关系。在图9中表示出经紗張力与经軸直徑之間的变化关系。根据(14)式我們可得到这样的結論: 在加了导紗辊及经軸压掌后经紗张力的变化可大大的减小。本文对丰田G型送经机構的改进提供了方向。

From an analysis of previously published experimental data (from kelly's table), it is shown that the relation between kinematic viscosity (in centistokes) and the Englar viscosity E (in degree), could be adequately represented by— E°=0.1315V/(1-10~(-0.06026)V~(0.9610)) Where E°——Englar degree. V——Kinematic viscosity in centistoke. The standard error is about 0.87%, while the data for the Ubbelohide equation is 6.38% and Garner equation 3.35%.

根据前人的經驗数据,推导出一个新的恩格拉与运动粘度的关系式: E°=0.1315V/(1-10~(-0.06026V~(0.9610))E为恩格拉粘度。V为动力粘度的單位厘沱。其标准偏差在0.87%。而Ubbelohyde公式在6.38%,Garner公式在3.35%。

In this paper the working stroke of a screw press is onalyzed, leading to for- mulas for the determination of the maximum stress in its frame. The working stroke is considered to consist of two successive stages: (1)the stage of plastic deformation of the workpiece and (2) the stage of braking the flywheel of the press to a stop. Since the maximum force Pm acting upon the frame may accidentally occur at the end of the second stage of the working stroke when there is no stock in the die. the value Pm is required...

In this paper the working stroke of a screw press is onalyzed, leading to for- mulas for the determination of the maximum stress in its frame. The working stroke is considered to consist of two successive stages: (1)the stage of plastic deformation of the workpiece and (2) the stage of braking the flywheel of the press to a stop. Since the maximum force Pm acting upon the frame may accidentally occur at the end of the second stage of the working stroke when there is no stock in the die. the value Pm is required in the calculation of the frame strength. The strength calculation for the integral closed-type frame of a screw press then proceeds as follows: (1) Drawing the bending moment diagram with the unknown Pm (being in nature a statically indeterminate problem with respect, to the internal bending moment, this may be solved by means of the canonical equations of the force method); (2) Calculating the strain energy stored up in the frame and in the threaded spindle at well as the expended friction work during the whole working stroke, then determining the maximum load Pm; (3) Supplying the bending moment diagram with numerical data in order to find where the maximum stress in the frame exists and check up whether it is within the magnitude of the safe stress of the frame material.

本文首先分析了摩擦压力机工作行程中机架的受力和变形情况,之后将整体式机加简化为一框架,通过求出作用在机架上的最大载荷及其引起的弯矩分布,确定危险截面并核验其上最大应力是否超过允许值。

 
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