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Considering the progressive rupture mechanisms in backfill of different movement modes, the modified Coulombs solutions of active earth pressure were used to calculate the lateral earth pressures, the total lateral forces and their applied points. Comparisons of the calculated results with observations from model tests show that the prdposed methods can provide good predictions of earth pressures for different wall movement modes.

同时,根据不同位移模式下墙后填土渐进破坏的特点,对库仑土压力计算方法进行不同的修正,并引入摩擦角与位移之间的关系,得到不同墙体位移模式下任意位移时挡土墙上水平土压力强度大小、分布,水平土压力合力大小及合力作用点。

This paper analyses the advantages of down feed two pipe horizontal cascade system in all aspects and influencing degree by natural circulation pressure.

分析了下供下回水平双管系统的优点以及自然循环作用压力的影响程度,计算数据证明下供下回水平双管系统的垂直热力失调基本不存在;因为每层供回水采用双管系统,所以也不存在距离热源最远的散热器不热问题。

In experiment 2 we test the influence of grapheme and meaning process levels in the external source monitoring, and the result is that the error rates of the external source monitoring with meaning process level is worse than with grapheme but the difference just is margin marked

实验2,检验字形和语义加工水平对外部来源检测的影响,结果表明,语义水平加工状态下的外部来源检测错误率比字形加工状态下的差一些,但差异仅仅是边缘显著

Thirdly, geometry and mechanics equation on arbitrary point of the mooring line is deduced based on the catenary's theory . By using B-Spline functions the relationship curve between excursion and mooring force can be obtained, so the mooring force on buoy during the motion is known.

另外,本文应用数学物理的悬链基本方程,推导出平衡悬链上的任意点的几何、力学计算方程,给出了链型静力平衡判别式,还建立了锚链松弛和张紧状态下锚链顶端位移与水平力及垂向力之间关系的分析程序,通过B样条函数方法拟合不出同吃水情况下物体的水平漂移量与锚链拉力之间的关系曲线,从而在时域计算中可以得到锚链力的大小。

The result showed there existed significant differences among families in seedling growth, dry matter accumulation, leaf shape as well as root parameters at high and low nitrogen levels. Remarkable reduction in seedling height, dry matter accumulation, leaf and root parameters were observed under low nitrogen stress, whereas larger proportion of photosynthesis production was allocated into roots to promote nitrogen absorption. Family variation in seeding growth, leaf and root parameters were increased under low nitrogen stress in comparison with high nitrogen level, which would be benefit to discriminate superior L. chinense families with high nitrogen efficiency. Nitrogen efficiency of different L.

结果表明:不同氮素水平下,马褂木苗的生长、干物质积累、叶片和根系等性状皆存在显著的家系遗传差异;低氮胁迫将显著抑制马褂木苗叶片发育和根系生长,影响苗高生长和干物质积累,但低氮素水平下生产的光合产物则较多地分配至地下根系部分以促进对氮素的吸收利用;与高氮处理比较,低氮胁迫加大了苗木生长、叶片和根系参数等家系遗传分化,有利于鉴别高氮效率的马褂木优良家系。

Further theoretical analysis demonstrated the lateral effective width of crescent-shaped quantum wires was 6nm within the regime of quantum size. With two-dimensional separated-confinement-heterostructures, the multi-quantum-wire laser arrays operated in pulsed condition (1kHz/1μs) at room temperature, and their pulse light outpower reached more than 115mW, which is the best among all quantum wire lasers reported previously.

这种多量子线激光器列阵具有二维分别限制的异质结构,并在室温脉冲(重复频率1kHz,脉宽1μs)下产生激射,光脉冲线性输出功率可达115mW以上,这是目前国际上各类量子线激光器的最好水平;子带间能隙最大为27meV,与室温下热离化能相当,优于目前国际上报道的同类量子线激光器的最好水平。

In the light of the shortcomings of the traditional method for predicting the fatigue life of coiled tubing, a new method for the reliability analysis of coiled tubing is offered, that is, normalizing the fatigue test data of coiled tubing with different materials and stress states by introducing a compound random variable X=NS2 based on low cycle fatigue curves.

预测连续油管疲劳寿命传统方法是将许多试样在不同应力水平的循环载荷作用下进行试验直至失效,从而作出S-N曲线,供工程参考,这样不仅费用高,且模拟实际应力条件也较困难。为此,根据低周疲劳曲线,通过引入复合随机变量X=NS2,对不同材料和应力水平下的连续油管疲劳实验数据进行了归一化处理。

One hand, under floating exchange rate system the stability of the prevalence of non-speculative, while the fixed exchange rate system with the general stability of speculation because the speculators will be expected to exchange rate adjustment to a fixed level, and the Government's intervention in the market traders of the psychological there are "nominal anchor" role in creating a more stable economic environment.

一方面,浮动汇率制度下盛行的是非稳定性投机,而固定汇率制下的投机行为一般具有稳定性,因为投机者预期汇率水平将会向固定水平调整,并且政府的介入使市场交易者的心理上存在&名义驻锚&的作用,营造了一个比较稳定的经济环境。

In this paper, a specially made root chamber system with two compartments and nine gas collection pipes was used to collect the N2O in soil air of nine different spatial position in the root chamber. The following treatments were also used:(1) Two selective nitrification inhibitors, C2H2 and DCD in low concentration were used to study the nitrification process under different NH4+-N levels and its contribution to N2O release.

用特制的带有9根采气管的两室根箱系统,采集和分析根箱中9个不同部位土壤空气中N2O的浓度,结合使用具有选择性的硝化抑制剂(包括低浓度的C2H2和DCD),研究在不同铵态氮水平下的硝化过程及其对N2O气体释放的贡献;结合使用高浓度的C2H2,抑制反硝化过程中N2O到N2的还原,研究在不同铵态氮水平下的反硝化过程及其对N2O气体释放的贡献。

Western blot analysis with the antiserum ATP95 revealed a significant increase of protein amounts of the V-H〓-ATPase subunits B and c of S. slasa under 100 and 400 mmol/L NaCl treatment, which gave another evidence for a salt-induced coordinate up-regulation of V-H〓-ATPase subunits at transcription and translation levels. The coordinated salt-induced increase of subunit B, H and c of V-H〓-ATPase from S. salsa at transcription and translation levels indicated an increase of V-H〓-ATPase holoenzyme amounts, which might be the reason for the increase of V-H〓-ATPase activity of S. salsa under salt stress.

400 mmol/L NaCl处理盐地碱蓬植株分离其叶片液泡膜微囊进行Western-blot分析发现盐胁迫明显诱导了盐地碱蓬液泡膜H〓-ATPase B、c亚基蛋白的表达,证明盐胁迫下,盐地碱蓬液泡膜H〓-ATPase各亚基在转录、翻译水平存在协同表达。100、400mmol/L NaCl处理亦明显增加了盐地碱蓬叶片液泡膜微囊H〓-ATPase活性,表明盐胁迫下,盐地碱蓬液泡膜H〓-ATPase各亚基在转录、翻译水平的协同表达增加了H〓-ATPase全酶的数量,进而增大了H〓-ATPase的活性。

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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。