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The climate characteristics of TCP were analyzed with variance analysis,trend coefficient and linear regression technique,followed by comparison with those of annal total rainfall in East China.Results show that the spatial distribution of TC rainfall is not uniform in East China with the...
结果表明:华东地区登陆台风降水量空间分布不均匀,福建东南沿海地区最大,具有向西北方向递减的趋势,这种趋势与地形等因素有关;TCP的年际变化明显,9 a和15 a周期显著;TCP年代际变化表现为20世纪50年代最多,70年代前开始减少,比华北地区台风降水减少出现的时间提早10 a;TCP与总降水两者的时间演变特点差异较大。
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By comparison with the results obtained by the other calculating methods, it is proved that the satisfactory results can be obtained by the proposed method.
通过与常见公式计算的结果进行比较,所建立的方法得到了比较满意的结果。
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Thirdly, a new type base isolation system, i. e., slide-limited friction base isolation system is presented in this paper. Based on this system, harmonic and subharmonic periodic response of S-LF subjected to harmonic motion is investigated by using Floquet theory. Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.
提出了一种新型基础隔震模型,即带限位装置的摩擦隔震体系;基于此隔震模型,利用Floquet理论研究地面谐运动下S-LF结构的运动特性;并利用高精度的精细时程积分法,通过对地震作用下S-LF动力响应的计算,绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱,并研究了各种结构参数对隔震的影响;通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明,S-LF的隔震性能优于P-F和R-FBI;对计算实例的分析发现,地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。
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By applying Simon's idea of system's near decomposability, the quantitative structuralization method is proposed based on the QMT3 (quantification method of type 3). Furthermore, the features of this method are clarified by comparison with the current methods. Finally, the effectiveness of the method for software structure analysis and design is verified by an application.
西蒙的系统准分解可能性原理,提出了基于数量化理论3类QMT3(quantification method of type 3)的软件定量结构化方法,再通过与现有方法的比较分析,阐明了该方法的特点;最后,通过应用实例验证了该方法对软件结构分析和设计的有效性。
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An enriched PCR fragments with less complexity were obtained and mainly expressed in the denervated hippoampus After cloning into the plasmid vector, 46 clones were initially screened and subjected to autosequencing By comparison with the EMBO gene databases, 21 gene fragments of different types were obtained with 11 similar to genes of known function and 10 similar to ones of unknown function It is inferable that the altered gene expressions of hippocampus following the entorhinally denervation may underlie the specfic reinnervation and the formation of synapses by transplanted entorhinal neurons with host neuropil within the denervated target areas.
初步挑选出的46个转化后的阳性克隆,经点杂交筛选和基因序列分析,与Gene Database同源性比较后,得到21种基因片段,其中功能已知的有11种,功能未知的有10种。结果表明海马在去内嗅皮层后某些基因表达的改变,这可能是移植胚胎内嗅皮层神经细胞轴突特异支配去神经靶区和重建突触联系有关。
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The research result shows that the flowability, moldability, cohesiveness of high performance concrete of hill sand are significant by comparison with ordinary concrete on mechanical properties, long term properties, and durability. Motar flowability decreases with the increase of single-mixed active additive. The flowability can be largely improved by double mixing of active additive and super plasticizer NF. This is because not only the active additive has filling effect but also the dispersing effect induced by surface action between additive and super plasticizer NF. And the optimal content of materials are: super plasticizer NF≥0.8%, fly ash 20%, PS 20~30%,zeolite powder≤20%,SF 5~8%; The negative influence of hill sand powder should be avoided by controlling of powder content and the use of active additive and super
研究表明:随着单掺活性掺合料掺量的增加,砂浆流动性减小,活性掺合料与萘系高效减水剂NF双掺使用,比使用同样剂量萘系高效减水剂NF的基准浆体流动性明显增大,这是由于玻璃体材质活性掺合料不仅有填充效应,更主要的是它与高效减水剂之间的表面物化作用产生了分散性,而活性掺合料对浆体的流化作用效果主要是依赖于其分散性;能有效改善胶砂流动性的适宜掺量为:萘系高效减水剂不小于0.8%,粉煤灰掺量为20%,PS掺量为20~30%,沸石矿粉掺量不宜大于20%,SF掺量为5~8%;通过对粉末含量的限制,并借助活性掺合料、高效减水剂的合理使用,就可以避免山砂粉末含量的负面影响,配制出密实度高,抗渗性能优异,具有良好的耐久性能,并具有良好的体积稳定性的山砂高性能混凝土。
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By comparison with some traditional differentiation methods, such as divided differences, by-hand coding and symbolic differentiation, AD is characterized by a lot of virtues, e.g., truncation error free, less running cost and less human labor required.
比起传统意义上的计算微分方法来,自动微分具有计算精度高、计算代价小及投入人力少等优点。
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By comparison with other experimental data we determined 42 energy levels of Cu and 13 energy levels of Ge. For the spectrum without experimental data for comparison, they are determined by isoelectronic sequence.
4 我们采用束箔光谱方法测量高离化态Cu和 Ge束的光谱线,与文献中的实验数据相对照,确定了 42条 Cu的谱线和 13条 Ge的谱线,对于无实验值可对照的谱线,利用理论值和实验值进行等电子序列证明。
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Have a good command of … common have much in common have nothing in common common knowledge common-sense ability to communicate with … be in communication with … be comparable with … as compared with … compare … with … bear comparison with … by comparison with … in comparison be compatible with … make compensation for … compete with … for … complain about … complete with … in compliance with … comply with … be composed of … be confronted with … to consist of … to comprise … to contain … be relevant to …n.
be involved in … it is conceivable that …发生;出现遇到…染上…病倒开始运转;被实施获得应用;被采用成年(指法定的,通常指 18-21 岁)表示劝说,激励,不耐烦等出现;显露出来成为事实;实现怎么会…的?能驾御…;很会…共同的;相同的;常见的;普通的有许多共同之处毫无共同之处常识常识的与…交流的能力;能够使…产生共鸣与。。。
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By comparison with conventional hydrostatic transmission, its power matches load well because it is adjusted by servo system. By comparison with secondary adjusting system being applied in industry newly, HESTS not only adjusts operation mechanism to match the system output and load well, but also adjusts engine or hydraulic pump, and manipulates the direction of power flow inputing or outputing the Energy Storage Unit actively. Therefore, HESTS can get energy of whole system matched well, increase the efficiency of system and performance of main machine. First, a HESTS applied in vehicle was designed.
由于对执行机构采用自动调节,系统的功率匹配合理,效率有较大提高;同新近发展起来并已被应用的二次调节系统相比,静压储能传动不仅通过调节执行机构来达到系统输出与负载的良好匹配,而且还调节原动机或液压泵,以及主动控制系统中储能元件的能量流动,因此能达到整个系统的能量合理分配,从而提高了系统的效率和整机的性能。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。