四元的

Another approach in enhancing the light extraction efficiency of AlGaInP LED was accomplished using a surface roughening process. In this process, the Au(170 nm)/AuBe(260 nm)/Au(170 nm) ohmic contact layers were first deposited on the GaP window layer. After the alloy annealing process (480°C for 10 min), the Be atoms will diffuse into the GaP top layer and form non-uniform clusters. The LED samples were then immersed into a mixture 3H3PO4:1H2O2:1H2O solution for 6 min, resulting in a rough GaP surface. The luminous intensity of the AlGaInP LED can increase from 42 to 50 mcd, that is, an 18% enhancement can be achieved via the present non-photolithography surface roughening process.Keywords: LED, AlGaInP, Cu substrate, Reflector, Surface roughening

在实验的第二部份是开发磷化镓窗口层之粗化制程，我们是藉由正面金/铍欧姆接触电极之熔合制程，使铍扩散至磷化镓层，同时利用铍渗入磷化镓造成之特殊组成，可形成不均匀之蚀刻阻挡，而在磷化镓表面形成粗化，我们发现480℃、10分钟的熔合制程，加上浸泡磷化镓蚀刻溶液6分钟，可将四元发光二极体之发光亮度由42 mcd 提升到50 mcd，经由此无光罩粗化制程可将亮度提升18%，明显提升磷化铝铟镓发光二极体之外部量子效率。

December 6, ST Goldry (600714, closing price of 4.2 yuan), said an announcement, the actual control of Qinghai Investment Group has decided to purchase ST Goldry windy hill idle assets celestite ore 300,000 tons/year beneficiation project, which pre - assessment for about 65 million yuan.

12月6日，意法半导体金瑞（六十万〇七百一十四，收盘4.2元的价格），宣布说，在青海投资集团的实际控制决定购买意法半导体金瑞闲置资产大风山天青石矿30万吨/年选矿项目，该项目预-评估约65万元。

The author generalized the results of the centralizer of matrix over complex number field to Real Quaternion field .

推广了数域上的矩阵中心化子理论，得到了实四元数体矩阵上的中心化子理论

This paper proposes a flexible and reliable camera calibration of stereo vision measurement system based on unit quaternions with optical reference bar, which has three small collinear infrared LED feature points and the lengths between these feature points have been precisely calibrated.

提出了一种利用光学参考棒，基于单位四元数法的灵活、有效的立体视觉测量系统现场校准技术。

Keep in mind that, as is the case with matrices, quaternion multiplication is not commutative!

紧记，矩阵在此种情况下，四元数的乘法是不可进行交换的。

"We must fight for racial equality ," continued the speaker.

两个四元数相等的准则是，它们的数量部分相等。

A new structure theory of intelligent control .

智能控制的四元结构的研究。

The problem of the equipment is that the calculation results appear distortion when angle is near to 45°.

论文在深入研究现有算法存在问题的基础上，采用了一种广泛用于刚体定位的数学参数算法——四元数法。

In this example, Quaternions provides a better interpolation type when blending between the keyframe and motion path animation.

在这个例子中将展示，进行混合关键帧动画和移动路径动画时，四元数提供更好的内插种类。

SINS is calculated by quaternions and the in-tegrated navigation system is simulated by federated Kalman fil-tering method in this paper.

本文采用四元数法进行SINS计算，并运用联邦滤波的方法对组合导航进行了仿真。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。