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This paper summarizes the development of proplastid, lay stress on the synthesis relativity between plastid and lipid.

阐述了能源植物前质体的发育,着重介绍了质体与脂类合成相关性等方面的研究进展,探讨了生物质能源合成的产业化策略。

The gemmological characteristics and spectra of a type of rock crystal containing tube like inclusion s appearing in market in recent years are studied.

对近年来在国内市场出现的一种含管状包裹体的水晶制品进行了详细的宝石学特征及谱学研究,获得的主要结论有:该类型水晶是以 Z( 0 0 0 1 )为种晶板、在 2 80~ 3 3 8°C的条件下合成的;富含包裹体的部分可能是合成过程早阶段的产品。

The results of the dissertation were concluded as follows:(1) It is essential to deposit a basic additive on the Mo-based catalysts for the synthesis of CH_3SH. The potassium-doped Mo-based catalysts exhibit the highest activity than that of the catalysts doped with the otherⅠA andⅡA group basic promoters. H_2-TPR and LRS characterizations suggest that the addition of a base leads to the transformation of octahedrally coordinated Mo to tetrahedrally coordinated Mo, thus leads to the split of low temperature reduction peaks. The interaction between the basic components and Mo lead to the formation of B-Mo interface phase, which are closely correlated with the formation of CH_3SH.(2) It has been found that Fe, Co, Ni and Te have evident promoting effects for the K-Mo/SiO_2 catalysts.

主要结果归纳如下:(1)在Mo基催化剂中,必须添加碱才具有可观的合成甲硫醇活性,在IA和IIA族元素中,K是最佳的碱促进剂,当K/Mo摩尔比为2,前驱体为K_2CO_3,采用共浸法制备的K-Mo催化剂活性最高。H_2-TPR和LRS表征显示,碱的加入导致表面八面体钼氧物种向四面体转化,催化剂的低温还原峰发生分裂,碱助剂与钼之间存在强相互作用形成了B-Mo"界面相",该物种与合成甲硫醇密切相关。

The mature egg cell was an inactive cell with only a few polysomes. At the early zygote stage, a large number of ribosomal precursors were produced by the nucleolus, and many polysomes appeared in the cytoplasm, which suggests a high level of metabolism. Zygote at the dormancy stage had a small nucleolus and marked decrease in ribosomes, as shown by a few polysomes, which suggests decreased metabolism. Zygotes in the prophase of mitosis and two-celled proembryo became active again in metabolism, for a prominent nucleolus, high density of ribosomes and increased number of polysomes in the cytoplasm.

结果如下:在成熟卵细胞中多聚核糖体数量不多,且细胞代谢活性较弱;初期合子内,核仁大量合成核糖体前体物质,胞质中多聚核糖体数目众多,细胞代谢活性较强;休眠期合子的核仁变小,胞质中核糖体数量急剧减少,仅有少量多聚核糖体,细胞代谢活性较弱;合子分裂前期和二细胞原胚期,核仁显著,胞质中核糖体的密度增加,出现大量多聚核糖体,细胞代谢活性较强。

A novel polymer of Poly(diglycidyl maleate-co-stearyl methacrylate) was synthesized and its structure was characterized by ~1H NMR. Its self-assembly behavior was studied in different solvents. It was found that vesicles and tubule-liked aggregates can be obtained through self-assembly of P(DGMA-co-SMA)/THF/EtOH system. And spheral aggregates were obtained in P(DGMA-co-SMA)/THF/H_2O system while the spheral aggregates were converted into rod-liked aggregates and line-liked aggregates after aged for different time.

合成了带含环氧基侧链和十八烷基侧链的聚(马来酸二缩水甘油酯-co-甲基丙烯酸十八酯),用~1H NMR对所得的共聚物进行了表征;研究了其在选择性溶剂中的自组装行为,发现P(DGMA-co-SMA)/THF/EtOH体系可以通过自组装形成囊泡形自组装体和支化的管状自组装体,P(DGMA-co-SMA)/THF/H_2O体系最初自组装形成球形自组装体,随着陈化时间的延长,球形自组装体逐渐融合成长条形自组装体和线形自组装体;探讨了自组装过程的机理,建立了可能的自组装过程模型。

Work 工作:(1) feasible process development for high-pure tetraalkyphosphonium salt as catalysts for polymerizations, potential sale 2-4 million us$;(2) simple and feasible preparation process for phosphonium salt as ionic liquids, biocides and phase transfer catalysts;(3) new and industrially feasible processes for highly sterically hindered alkylphosphines as catalyst ligands, these include tricyclohexyl-phosphine, phosphorinanes and dsmphos2,3- bis(9-phosphabicyclononylbutane;(4) sterically hindered dialkylphosphinic acid as new generation of co/ni extractant;(5) alkylphosphonium wittig reagents and the wittig reactions with them;(6) exploration of the application of borane chemistry in the synthesis of highly sterocally hindered organophosphines;(7) customer preparation of samples of a variety of organophosphorus compounds for customers all over the world.

用作高分子聚合反应催化剂的高纯度四烷基瞵盐的实用生产流程。产品销售前景 2-4 百万美元;(2)用作离子化液体,杀菌剂和相转移催化剂的烷基瞵盐的简单实用合成方法;(3)高位阻烷基磷化氢催化剂配体的工业实用合成路线的研究,这包括,三环己烷基磷, phosphorinanes 和 dsmphos 2,3-bis(9-phosphabicyclononylbutane ;(4)高位阻二烷基膦酸金属萃取剂的工业实用合成路线的研究;(5)烷基膦 wittig 反应试剂的研究;(6)硼化学在高位阻烷基磷化氢合成中的应用;(7)为世界各地提供顾客合成服务。

In crystal, two APC-PY trimers associate into a hexamer by face. The assembly of two trimers within this hexamer is very similar to that of C-phycocyanin and R-phycoerythrin hexamers, but the tight level of the assembly of two trimers within this hexamer is clearly not so much as that of C-PC and R-PE hexamers.

晶体结构中,两个APC-PY的〓三聚体通过面对面的方式缔合成一个〓六聚体,该六聚体内两个三聚体的组装方式十分类似于C-藻兰和R-藻红六聚体,但六聚体内两个三聚体组装的紧密程度上显然不如C-藻兰和R-藻红六聚体。

These results reveal that the APC〓 trimers in the core cylinders of phycobilisomes favour a standard face to face manner to associate into a〓 hexamer, but probably, the APC〓 trimers cannot form a stable〓 hexamer like C-PC and R-PE hexamers due to the relatively weaker association between two trimers, but a relatively looser hexamer.

这些结果表明位于藻胆体core cylinder中的APC〓三聚体趋向于以通常的面对面的方式缔合成〓六聚体,但由于六聚体内两个三聚体之间的相对较弱的相互作用,APC三聚体很可能不能形成象C-藻兰和R-藻红一样的稳定的六聚体,而只能形成一个相对松弛的六聚体。

The experimental goal is to use SOPC-NIOSII EDA / SOPC system platform for real-time moving object detection system in this paper. After the inputs of image penetrated the CMOS Sensor to receive the data of the image makes the RGB form the transformation. The CPU processes operation of image detects. After the processed of image deliveres to VGA displayed output of real-time image. We use example programs of DE2 platfrom to achieve entire hardware on experiment board of SOPC-NIOSII EDA / SOPC System platform. On system of dectect image we divided into two parts : hardware and software. We use Verrilog of HDL to modify code in hardware. To use Custom IP of SOPC Builder produced IP of our need. We need a interface to connect in the COMS Sensor to FPGA and FPGA to VGA among. The code synthesize to create a programming file of *.S by Quartus II. Then, to use USB BLASTER of SOPC-NIOSII EDA/SOPC System platform programmed on FPGA. We use NIOS II IDE to assign DMA address in sofaware. We use SOPC-NIOSII EDA / SOPC System platform of Hum-Heng Technology co.

中文摘要本论文实验目标是在於利用SOPC-NIOSII EDA/SOPC系统平台来实现即时移动物体侦测的系统,影像输入透过CMOS Sensor接收影像的资料经过RGB格式的转换,再经过处理器处理影像侦测的运算,最后再将处里后的影像资料传送给VGA做即时的影像输出,我们使用DE2平台的测试范例程式转换在SOPC-NIOSII EDA/SOPC系统平台实验板来实现整个的硬体,我们将影像侦测系统分为硬体和软体二部份,硬体部分我们使用Verilog硬体描述语言修改撰写,利用SOPC Builder的自订IP产生我们所需的IP ,在COMS Sensor到FPGA跟FPGA到VGA中间我们需要一个interface来进行连接,经由Quartus II来合成产生*。sof的烧入档,然后利用SOPC-NIOSII EDA/SOPC系统平台专用的USB BLASTER来烧入到FPGA上,软体部分我们使用NIOSII IDE来定址我们DMA位址,主板我们采用华亨科技公司的SOPC-NIOSII EDA/SOPC系统平台。

S the computation power and the memory capacity increase, the corpus-base speech synthesis system has become the best and most popular speech synthesis system. Based on the system, the linguistic features are first derived after the text is parsed, then some appropriate units are selected as candidates. Finally, the well-pronounced speech is synthesized by concatenating the best unit sequence by the synthesizer part of system.

bstract:随著计算机之运算速度及记忆体容量的加快与增大,以大型语料库为基础之语音合成系统已成为目前最普遍且品质最好的语音合成系统,其方法是先输入欲合成之文字后,再经过分析得到语言参数,接著在大型语料库中依据所得到之语言参数找到对应之候选合成单元组,最后透过语音合成器挑选出最合适的单元组进行串接以得到合成语音。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。