A New way to Derive the Formula of N-dimensional Sphere's Volume

1、

Reconstructing the Proof of Babylonian Volume Formula for the Frustum of a Square Pyramid

古巴比伦正四棱台体积公式古证复原

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2、

In this paper, the concept of k dimensional vertex angle of simplex is given, a class of volume formulas of simplex are established, sine theorem of k dimensional vertex angle is derived and a geometric inequality about k dimensional vertex angle is obtained.

本文给出单形K维顶点角的概念，建立单形新的一类体积公式，导出单形K维顶点角的正弦定理，并获得关于单形K维顶点角的一个几何不等式。

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3、

In light of the general method of solving mean value and in view of the isothermal process of both ideal and real gas, this paper presents a further exploration into the volume formula for surge chambers on slush pumps and thereby some new results.

本文用求平均值的普遍方法，针对理想气体和真实气体的等温过程这两种情况，考查了钻井泵空气包的体积公式，得到了一些新结论。

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4、

Application and Extension of the Formula of Volume about Body of Rotation

旋转体体积公式的推广及应用

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5、

The effective absorption layer of a single ray can be used as such physical scale length to obtain a formula for the wave power deposit.

单一波束的有效吸收层的厚度可以合理地作为这一物理尺度，从而获得统一的功率沉积公式。

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6、

To explain calculation formula of steel wire heating, furnace surface heat dispersion and electric power.

说明钢丝加热、炉体表面散热和电功率计算公式。

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7、

The formulae of calculating torque and power have been given.

给出了扭矩和功率的计算公式；

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8、

Readings of Two-wattmeter Measuring Method and Calculating Formula of Reactive Power

二瓦特计测量法的读数与无功功率的计算公式

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9、

The formulas for sound power of exhaust noise in frequency domains are given.

在频域上给出了排气噪声声功率的公式。

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10、

The calculation formula for capacity and power consumption of fine coal vertical centrifuge was deduced and verified by examples.

推导了立式螺旋卸料煤泥离心机生产能力和功率消耗计算公式并用实例加以验证。

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11、

We input the formula and inertia constant to the calculator, and the final results can be displayed.

在测定前预先将功率计算公式及发动机的惯性常数输入，即能自动显示最终结果。

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12、

An energy harvesting structure based on rectangle piezoelectric microcantilever was set up and the process of energy transform from vibration to electric was generally analyzed.

为此，以矩形压电微悬臂梁结构作为换能单元，通过对压电层等效电流源和单相桥式整流电路的理论及相关公式的推导，得出微能量功率的计算公式。

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13、

In this paper, the theory about shear and clash in harrowing ballast is suggested and the formulae for determining the power of harrowing ballast are deducted.

对清筛机的扒碴工作原理目前还研究不够，本文提出了剪切、冲击扒碴原理，导出了确定扒碴功率的公式。

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14、

Design Formula for Microstrip Power Divider

微带功率分配器设计公式的研究

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15、

Approximate Correction to Formula of Quadrupole-Radiation Power of Gravitation from Rotating Stars

天体自转四极引力辐射功率公式的近似改正

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16、

Because of the instability of EEG signals, the expressions of wavelet power spectrum for EEG signals have been described in this paper.

由于脑电图信号的非平稳性，首先从理论上推导出针对脑电图信号的小波功率谱计算公式。

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17、

On the basis of defining nodal load moment, the formulae to calculate and modify equivalent impedances and equivalent power of nodal load moments are given;

在节点负荷矩基础上推导出了计算和修正节点负荷矩的等值阻抗和等值功率计算公式；

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18、

Using the General Matching Law, the formulas of thickness and power reflectivity of multi-layer interference absorbing materials are developed.

同时本文还结合广义匹配规律，推导出多层干涉型吸波材料的厚度公式和功率反射率公式。

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19、

Formulization of Basic Power Rating of Classical V-belt

单根普通V带基本额定功率数表的公式化

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20、

The formulae for calculating the uphill steering torque resistance, haulage force and power are presented and the results are checked by the measured power on horizontal surface.

提出了在上山坡道上的转向阻力矩、牵引力和功率的计算公式，并以水平地面的实测功率进行了验证。

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