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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。

Then sort every individual module into an intact framework, which accomplish the fabrication of using software mode to complete the Induction Motor drives.

为了简化设计与降低电路复杂度,程式采用模组化方式设计,在软体模式中,FPGA晶片内部设计一16位元的DSP核心,并以组合语言撰写驱动器控制法则之模组,再将各模组加以整合成完整之架构,实现以软体模式完成感应马达驱动器之制作。

Basing on the famous Schur theorem on real quaternion division algebra and the operation of matrix, some properties and judging criterions of skew self-conjugate matrix are obtained. Several theorems about characteristic value, similar decomposition and real expression of skew self- conjugate matrix are gained.

借助四元数体上的Schur三角分解定理和体上矩阵的运算,得到了斜自共轭矩阵的一些性质及判定准则,获得了斜自共轭矩阵的实表示、相似分解以及特征值的几个定理。

In this article, aiming at a kind of elliptic problem, three types of preserving-symmetry finite volume schemes under quadrangle partition grids are firstly established . During the course of the establishing, the" vertex-centered" control volume are selected and the balance-equation is discretized by utilizing the finite volume element method.

本文首先对自共轭椭圆问题,在四边形剖分下,通过选取"vertex-centered"类型的控制体,并利用有限体积元方法对平衡方程进行离散,首次建立了四边形剖分下的三种保对称的有限体格式。

It was found that because of the difference in component distribution and structure, the tendency that pores furcate and bend was smaller in amorphous precursor than in crystalline precursor, and for the amorphous precursor, the velocity of Al leaching-out and the expanding of specific surface area of catalyst were more sensitive to activation process parameters.

结果发现,由于两者在组元的分布及结构上的差异,非晶态前置体合金在活化过程中形成的微孔发生弯折、分叉的倾向要小于晶态前置体合金,同时前者在活化过程中的抽Al速率、以及所得到的催化剂的比表面积等对活化工艺更为敏感。

Thereby the stable temperature field is analyzed by using the finite element method, and the mean temperature, temperature difference between the inwall and outer wall of the tube sheet and cylinder are worked out, which is taken as the heat load for an analysis of the stress field.

为此, 运用有限元法对稳态温度场作了计算,求得管板、筒体等部件的平均温度、内外壁温差,并将这些参数作为应力场分析的热载荷;将废热锅炉离散为由板壳元和杆单元组成的空间结构,对自重、压力、温度组合的4 种工况进行计算,得到管板、筒体等部件的应力场分布规律。

The analytical model SAP2000 constructed for this study uses the exact same size as the steel structure used in actual experiments. As SAP2000 is an engineering structure used to design package software, we only need to input data of the various size, cross section of figured steel and material characteristic. We can further use the build-in link to simulate the motion behavior of spherical sliding isolators including the effective stiffness and the friction coefficient.

研究中所建立之SAP2000分析模型,其尺寸设计和实际试验钢构架完全相同,由於SAP2000软体是工程结构设计用之套装软体,因此我们仅需将钢构架各部位尺寸、型钢断面及材料性质输入即可,并且使用其内建隔震元素来模拟球面摩擦型隔震器之运动行为,其中包含有效劲度、摩擦系数等。

The state's Silicon Valley also contributed to English's high tech lingo: software, hardware and megabyte.

这一州的矽谷也增加了英语的高科技字汇:软体、硬体及百万位元。

Among people who do exercise regularly, those--elder, non-smoker, perceiving unhealthy, no income or low level of income and practicing exercise often with partner—were more likely to carry on the effective fat-reducing exercise. This study identified the groups of overweight and obesity and their association with practicing exercise habit and health fitness.

结果显示龄较高、男性、教育程较高、无吸菸、有患慢性病、无烦恼、最近星期无身体适影响生活作息、工作家事耗体、收入在60000 元以上者及收入在19999 元以下者,其进运动与的可能性较高;高龄、无吸菸、自认健康好、无收入或低收入与经常有运动同伴者,其进有效减肥运动的可能性较高。

Fancl Eye Cream Price: 180 yuan / 8g Japanese investment: 11.3 yuan / day ndzypj1203 Star ingredients: plant cell lipids, olive squalane, plant lipid alcohol derivatives, EPC, lecithin derivatives Texture: rich cream-shaped light green Scent: Almost no taste Integrated Force: coated in a very rich texture to feel the need to massage a moment to fully absorb.

Fancl眼部修护霜价格:180元/8g 日投资:11.3元/day 明星成分:植物性细胞间脂质,橄榄角鲨烷,植物脂醇诱导体,EPC,卵磷脂诱导体质地:丰厚的浅绿色乳霜状香味:几乎没有味道综合力:涂抹中能够感到质感非常丰厚,需要按摩片刻才能完全吸收。

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推荐网络例句

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?