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In brief, the process involves growing uniform crystals to a certain diameter, thinly slicing the crystal to very precise tolerances, edge rounding the form factors, polishing them into smooth wafers, then carefully packaging the wafers in a class 100/1000 room for shipping to customers. The main advantages of the VGF process include its scalability, low stress, high mechanical strength, and a defect rate that is orders of magnitude lower than conventional compound semiconductor crystal growth processes.

简言之,过程包括成长统一的晶体到某一个直径,薄薄的限制晶体到非常精确的公差,边缘圆整到形态要素,抛光他们成光滑的晶片,然后包装晶体在一个100/1000级别的空间为运输到顾客,VGF过程的主要优点包括,可测量性,低压力,高机械强度和一个比常规化合半导体晶体成长过程数量级低的过失率。

In contrast, in the linearized theory the deformation tensor is the sum of a rotation and a strain tensor and the order of their application is immaterial.

相反,在线性理论中,形变张量是旋转和平动张量的和,其值的数量级大小不重要。

Lewis says that isoprene and terpene were responsible for 30

到35℃时,其排放速度则可能增加了一个数量级(10倍)。

Many op amp specifications include only typical values for offset voltage drift; this may well be in the order of 5 mV/C, with an unquoted maximum for any device of 30 V/C.

许多运放技术指标只给出了补偿电压偏移的典型值,这很可能会在5 mV/C的数量级,而未给出任何器件可以达到的最大值为30 V/C。

The half life of xanthene derivatives in water is between 5 hours to 7 hours, and on the surface of silica TLC plates is between 1 hour to 2 hours.

呫吨类化合物的光降解规律为:在水溶液中的光降解是假一级动力学化学反应,半衰期在5小时到7小时之间,属于同一个数量级

The final results of the yield, the energy spread and the transversal emittance of some typical RIB has been obtained.

理论与实验均表明,在目前对PF反应机制尚不能精确描述的情况下,对RIB产额的计算结果达到1~2数量级的精度;对RIB横向发射度和动量散度的计算结果相对准确

That's exponentially more than we've ever been able to do,' says David Barse, CEO.

公司首席执行长巴斯说,这一数额比我们曾经筹到的钱高了一个数量级

The structural and photocatalytic properties of TiO〓 as well as surface acidity were greatly improved by sulfation. SO〓〓/TiO〓 solid superacid with Hammett constant Ho less than -12.14 was prepared by treating the TiO〓 with 1.0mol. L〓 sulfuric acid solution and then calcining at 450℃ for 3h. When compared to unmodified TiO〓, the SO〓〓/TiO〓 superacid catalyst exhibited higher anatase content, smaller crystal size, higher specific surface area, centralized pore size distribution, and the blue-shifted band edge of uv-vis adsorption spectra. Furthermore, the SO〓〓/TiO〓 superacid also showed excellent reaction activity and stability for CH〓Br photocatalytic decomposition even under the moist reaction conditions. The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

研究结果表明:SO〓〓与TiO〓表面的结合为螯合式双配位结构;TiO〓光催化剂表面经H〓SO〓浸渍处理后,提高了表面酸性,改善了催化剂结构和光催化性能,当H〓SO〓浸渍浓度为1.0mol.L〓、烧结温度为450℃时,可制得SO〓〓/TiO〓超强酸催化剂(H〓<-12.14),其结构和光催化活性得到明显改善,与TiO〓相比,SO〓〓/TiO〓光催化剂的锐钛矿含量高、晶粒小、BET比表面积大、孔径分布集中、光谱吸收边蓝移,具有优异的光催化氧化活性、稳定性及抗湿性能,光催化降解溴代甲烷的表观量子效率比TiO〓催化剂提高了一个数量级,是一种有实际应用前景的高效光催化剂;由此提出了SO〓〓/TiO〓超强酸催化剂表面集团协同作用的超强酸中心模型,认为在SO〓〓/TiO〓超强酸催化剂表面,由SO〓〓诱导的相邻L酸中心和B酸中心组成了集团协同作用的超强酸中心,其集团协同作用显著地增强了催化剂表面酸性、增大了表面酸量及O〓吸附量、促进了光生电子和空穴的分离及界面电荷转移,具有可逆吸附水的性能,是SO〓〓/TiO〓超强酸催化剂具有优异的光催化氧化活性、很好的活性稳定性及抗湿性能的重要原因。

The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

研究结果表明:SO〓〓与TiO〓表面的结合为螯合式双配位结构;TiO〓光催化剂表面经H〓SO〓浸渍处理后,提高了表面酸性,改善了催化剂结构和光催化性能,当H〓SO〓浸渍浓度为1.0mol.L〓、烧结温度为450℃时,可制得SO〓〓/TiO〓超强酸催化剂(H〓<-12.14),其结构和光催化活性得到明显改善,与TiO〓相比,SO〓〓/TiO〓光催化剂的锐钛矿含量高、晶粒小、BET比表面积大、孔径分布集中、光谱吸收边蓝移,具有优异的光催化氧化活性、稳定性及抗湿性能,光催化降解溴代甲烷的表观量子效率比TiO〓催化剂提高了一个数量级,是一种有实际应用前景的高效光催化剂;由此提出了SO〓〓/TiO〓超强酸催化剂表面集团协同作用的超强酸中心模型,认为在SO〓〓/TiO〓超强酸催化剂表面,由SO〓〓诱导的相邻L酸中心和B酸中心组成了集团协同作用的超强酸中心,其集团协同作用显著地增强了催化剂表面酸性、增大了表面酸量及O〓吸附量、促进了光生电子和空穴的分离及界面电荷转移,具有可逆吸附水的性能,是SO〓〓/TiO〓超强酸催化剂具有优异的光催化氧化活性、很好的活性稳定性及抗湿性能的重要原因。

The fluorescence intensity of these chitosan derivatives increases and decreases with the different chromophoric group in the polymers\' long-chain. The fluorescence properties of these chitosan derivatives are also changed with the different pH, solvent and concentration

首次考察了分子量为104数量级的壳聚糖衍生物的荧光性能与其侧链上的生色团、助色团的关系,以及在不同浓度、不同酸度、不同溶剂中它们的荧光性能的变化情况来源:33ddABC论文网www.abclunwen.com

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What are your goals and strategies for growth?

你的成长目标和策略是什么?

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3:1 你要写信给撒狄教会的使者,说,那有神的七灵和七星的,说,我知道你的行为,按名你是活的,其实是死的。

"It is a testament to making sure unemployment compensation is available, making sure we are looking out for people who have lost their jobs," she said.

"这是个实证,证明我们必须确保人们都可以得到失业补偿,确保那些失去工作的人们得到照顾。"