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First, the S-CDMA-HFC system with integrated traffic is introduced and the method of traffic integration is given. Second, the upstream channel capacity of the S-CDMA-HFC system with integrated traffic that has the same rate is analyzed. The chronoff limit and Gaussian approximate equation of the upstream channel cutoff probability are derived. Third, the impact of the selection of the line transmission rate on the upstream channel capacity of the S-CDMA-HFC system with integrated traffic is discussed in detail. The cutoff probability and throughout equations of the upstream channel with different integrated traffic are derived. Fourth, the impact of the power control error on the capacity is discussed. Results show that the power control error will degrade the upstream channel capacity and have different influence on the different traffic. Finally, the capacity requirement of the initialization process is raised. Analytical results show that the initialization process will impact on the capacity slightly.
首先,简单介绍了综合业务S-CDMA-HFC系统,给出了业务综合的方法;然后,分析了具有相同码率的综合业务条件下的S-CDMA-HFC系统上行信道容量,导出上行信道中断概率的切尔诺夫上限和高斯近似公式;然后,详细讨论了基本传输速率的选择对综合业务S-CDMA-HFC系统上行信道容量的影响,导出了不同业务综合条件下上行信道的中断概率和吞吐量公式;然后,讨论了功率控制误差对综合业务S-CDMA-HFC系统上行信道容量的影响,结果表明功率控制误差会使上行信道容量下降,且对不同业务的影响程度是不同的;最后给出了初始接入的容量要求,分析结果表明初始接入将对综合业务S-CDMA-HFC系统上行容量带来影响,但不明显。
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The resulting phylogeny indicated that:(1) Araneidae and Tetragnathidae, which build orb webs, are not a sister group in the superfamily Araneoidea;(2) Theridiidae and Linyphiidae, which build nonorb webs, are also not monophyletic, The results also corroborated the independent origins of linyphiid sheet webs and theridiid gumfoot webs;(3) The phylogenetic placement of linyphiid closer to tetragnathid than to araneid implies that the similarities of male palpal organ between linyphiids and araneids may be homoplastic rather than homologous.
结果表明:(1)织圆网的园蛛科和肖蛸科蜘蛛在园蛛总科里不是姊妹群;(2)不织圆网的球蛛科和皿蛛科也不是单系的,进一步证实了皿蛛片网和球蛛网独立起源的观点;(3)皿蛛科蜘蛛的分子系统发生地位与肖蛸科较近而与园蛛科较远表明皿蛛科和园蛛科间雄性触肢结构的相似性很可能是类似而不是同源相似。
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The Pb-Pb isochron of metamorphic argillite in Shuangqiaoshan Group is 1 490±68 Ma, while the Nd mode ages of Zhanggongshan Group, Shuangqiaoshan Group, Chenglang Group and Xiushui Group are 1.57 Ga, 1.89 Ga, 1.77 Ga, 1.60 Ga,respectively, less than 1.6-1.9 Ga, which suggest that they formed in Middle Proterozoic Subera.
研究结果还显示,双桥山群变质泥质岩的Pb-Pb等时线年龄为(1 490±68)Ma,而障公山群、双桥山群、程浪群和修水群的钕模式年龄分别为1.57 Ga、1.89Ga、1.77Ga和1.60 Ga,均分布在1.5~1.9 Ga之间,表明这些地层的形成年龄应小于1.9 Ga,是中—晚元古代的产物,同时表明扬子古陆南缘存在古元古代的基底。
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This is represented by upgrades that can be bought forthe model in the army list. If these upgrades are purchased, the cannoncan then be fired as any of the profiles available (the player mustdeclare before firing it). A 'weapon destroyed' result on the cannondestroys all profiles.
需要事先在军队列表里表明购买,如果表明购买了升级,就能用表里所有的武器,'武器击毁'会导致表里所有的武器都损坏。
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The main conclusions of this paper are as follows:(1) When the time is ascertainable, the paper builds two models under no profit and having profit. The conclusion tells us that when the price is different, the adoption strategy and threshold of the leader enterprise and the follower enterprise will change.
研究表明:(1)新技术到来时间确定的情况下,建立了两家企业无利润与存在利润流时的价值模型,结果表明市场产出价格处在不同区域内时领导企业、追随企业的采纳策略和采纳临界值会发生变化。
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The OsCMO contains 10 exons and 9 introns and encodes a protein with 410 amino acids,which shows 62﹪, 51﹪, 51﹪, 51﹪ and 50﹪ identities in amino acids to CMOs from Arabidopsis thaliana,Atriplex hortensis, Amaranthus tricolor, Suaeda liaotungensis and Beta vulgaris respectively. Semi-quantitative RT-PCR assay revealed OsCMO was significantly up-regulated in the rice seedlings under salt, cold and drought stresses. It suggests that OsCMO might play an important role in rice responses to abiotic stresses.
该基因含有10个外显子和9个内含子,其开放阅读框编码一条长为410个氨基酸残基的多肽,与拟南芥、山菠菜、苋、碱蓬和甜菜等植物的胆碱单加氧酶的氨基酸序列的一致性50﹪~62﹪。mRNA分析表明OsCMO基因在水稻幼苗组织中的表达受高盐、低温和干旱等胁迫的上调诱导表达,表明该基因可能在抵御非生物胁迫中发挥重要作用。
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The correct tie indicates not only that you are on your way but that you are sufficiently au courant to understand how to demonstrate that you are on your way.
领带选对了,不仅表明你事业顺利,而且表明你熟谙世道,知道怎么显示自己事业顺利。
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Wastewater containing titanium pigment was treated by microfiltration membrane, Nanometer titanium can be purified and concentrated by use of microfiltration. Operational conditions were optimized and the model was built. Finally, the amount of wash water was reduced. Based on the above research, the whole set equipment was designed, which can meet the needs in a titanium industry with a capability of 500 ton per year. Backflush and automatic control were used in the equipment, which has been steadily run two years, has been widely adopted in titanium industry. The technology has been widely adopted in titanium industry.In the recent years, whole set equipment of ceramic membrane was increasingly used in the recovery of desired production from fermentation broth in China. A new membrane process integrated with pretreatment of flocculation or coagulation was exploited to recover Inosine. ZrO2 ceramic membrane was used in the work, and the average permeation flux could reach 150L/m2.h under pH value of 3, transmembrane pressure 0.1MPa, CFV 3m/s, and temperature higher than 70C. The recovery ratio of inosine is higher than traditional recovery method, although inosine degraded under acidic and high temperature condition.
实验表明,ZrO_2膜处理肌苷发酵液的合适条件为pH=3、操作压力为0.1MPa、膜面流速3m/s、温度大于70度,此时可以获得平均渗透通量150L/m~2h,但由于酸性条件、高温下肌苷降解,导致肌苷收率有所降低,但仍高于传统肌苷提取方法得到的收率;为进一步提高肌苷得率,缩短提取工序,实验研究了絮凝剂预处理发酵液,解决碱性条件下由于蛋白析出导致膜污染加重的问题,研究表明采用CaCl_2絮凝并调节pH=11,可以获得平均渗透通量为180L/m~2h,肌苷得率大于95%;比较了三种肌苷提取工艺得到的产品质量,采用预处理与陶瓷南京工业大学博士学位论文膜分离结合的除杂工艺得到的粗昔质量与陶瓷膜分离、离子交换及活性炭吸附工艺生产的粗普质量相当,均优于传统的提取工艺;设计了每小时处理12一巧吨肌普发酵液的陶瓷膜成套装置,采用部分内循环的方式降低设备的能耗,简化了肌昔提取方式,提高了产品的收率和得率,由于减少离子交换和活性炭吸附,使得工厂废水排放量降低30一40%,降低酸、碱用量,有利于环境保护。
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In this paper, the dynamic compressing experiments for the matrix material of the tungsten alloys which have been three different deforming(0%、 32.6%、 44.6%) processed have been performed by the experimental technology of separated Hopkinson pressure bar and many accurate datum have been obtained. Also the three materials have been compared with each other and analyzed. The results show that the optimized values are in a certain range to optimize the materials by changing their deforming technology. The parameters of constitutive model of Johnson-Cook have been fitted based on the datum. Then proceed to the next step, adiabatic shear band of these three matrix materials has been analyzed with finite element method. The result shows that the relations between stress and strain are different because of the differences of technical process of the three materials, but they are in great commonness in the material experiment and in great coherence in the distribution of time and space, which can been seen from the space distributing figures of plastic strain.
利用分离式Hopkinson压杆实验技术对三种不同变形量(0%、32.6%、44.6%)钨合金基体材料进行动态压缩实验,取得大量精确的数据,对比分析三种材料,结果表明通过改变变形量对材料进行优化,其变形量的优化值是有一定范围的;本论文拟合、确定了钨合金基体材料Johnson-Cook本构模型参数并对三种基体材料绝热剪切带进行有限元分析,结果表明三种材料由于工艺流程的不同,应力应变关系也不尽相同,但从塑性应变的空间分布图上体现了材料很大的共性和时间以及空间分布的一致性。
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The relationship between glycosidic precursors and its aroma components was studied. The results showed: The dominant aroma constituents in aroma oil of jasmine tea include benzyl acetate, linalool, methyl antyranilate, cis-3-hexenyl benzoate, benzyl alcohol, indole, farnisene, methyl benzoate, methyl salicylate, geraniol, cis-3-hexenyl-acetate etc.; and the higher the concentration of these components is, the higher the quality of jasmine tea is.
结果表明:茉莉花茶香精油中,含量较高的有乙酸苄酯、芳樟醇、邻氨基苯甲酸甲酯、苯甲酸顺-3-己烯酯、苯甲醇、吲哚、法尼烯、苯甲酸甲酯、顺-3-己烯酯、水杨酸甲酯、橙花叔醇、乙酸顺-3-己烯酯、香叶醇;这些成分的含量随花茶品质的提高而增多;研究表明,花茶的高含量香气成分也是茉莉花中的主要赋香成分。
- 推荐网络例句
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The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.
采用不同浓度K2CrO4(0,0.4,0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗,测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。
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By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.
通过分析数学形态学在图像中的理论基础,研究二值图像的形态分析算法,探讨最小结构元素的两种基本形态:膨胀和腐蚀;分析了数学形态学复杂算法的基本原理,把数学形态学的部分并行处理理念引入到家实际应用中。
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Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.
有一个良好的政策环境,房地产,二级和三级市场的发展更加迅速改善。