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Considering the nonlinear and Elastic-Plastic and anisotropy trait of soil, the method of numerical analysis can reflect the relation between abreaction of pore press and framework distortion of soil and can simulate the fact of field and complex boundary condition and so on. So the method of numerical analysis has been abroad used in the area of theory research.

数值分析方法可以考虑到土体的非线性、弹塑性和各向异性等特点,能准确地反映出孔压消散与土骨架变形之间的关系,而且可以较好地模拟现场实际情况以及复杂的边界条件等,因此在理论研究领域得到了比较广泛的应用。

By analyzing, the fault transient component of third harmonic voltage at neutral is approximately equal to that at terminal. Choosing their sum and difference as the action and restrai nt signal respectively, the protection detects the ground fault by comparing the spectrum energy of action and restraint signals.

该保护方案根据单相接地故障后机端和中性点 3次谐波电压的故障暂态分量近似相同的特点,把两个故障分量的相量和与相量差分别作为保护动作信号及制动信号,通过比较数据窗内相应信号的谱能量检测定子单相接地故障。

To improve the purple soil storage capacity, to prevent soil erosion in hunan province, the choice of HengYangXian 20o purple soil slope, setting Guan waste land, grassland, natural forest and grassland and agrimony slight composite 4 processing, the water treatment performance and its mechanism, and the results show that, compared to the purple soil LuoDe HuangShanPo ground implement agrimony and three-dimensional planting trees for 1-2 years later, reduce soil bulk density 0.10 g/cm3 0.09 ~, soil porosity, permeability of soil moisture 14.01% increase rate increase 2.20 ~ 2.29 times.

为提高紫色土蓄水能力,防止水土流失,在湖南省衡阳县选择20o 左右的紫色土荒山坡地,设置祼地、自然草地、龙须草地和龙须草与林地复合4 个处理,比较分析各处理贮水性能及其改良机理。结果表明,与裸地相比,在紫色土荒山坡地上实行龙须草与林木立体种植1~2 年后,土壤容重降低0.09~0.10g/cm3,土壤总孔隙度增加14.01%,土壤水分渗透速率提高2.20~2.29 倍。

Meanwhile, the concentration of Pb,Zn and other heavy metals is rather high in the oxidation zone and decreasesdownward to levels that are unbelievably low for Pb-Zn mine tailings. Theseobservations suggest that heavy metals should be re-immobilized by secondaryminerals, rather than primary minerals, in the oxidation zone, and could be leachedout from suboxic environment due to low rate oxidative dissolution which preventsthe precipitation of secondary minerals in significant amount. Thus, cover scenarioswhich establish a suboxic environment beneath the cover layer might not always beeffective in preventing heavy metal release from mine tailings.Sequential extraction studies indicate that, in addition to heavy metal leaching,oxidation of the mine tailings increased the mobility of residual Zn, and Cu, while Pb remains immobile due to the formation of anglesite (PbSO4). Using the seven-step extraction technique developed by Dold (J. Geochem. Explor., 2003, 80: 55-68), galena dissolves in significant amount at step 2 most probably due to the strong complexing of Pb2+ by acetate, while other metal sulfides dissolve at step 6, which suggest that this extraction technique could not be used to evaluate the mobility of lead in natural environment

重金属含量均低于新鲜尾矿,但以硬化层中的含量最高(Pb、Zn含量分别为0.47%和0.93%),往下大幅度降低,表明尾矿风化过程中形成的次生矿物对Pb、Zn等重金属元素有较强的固定作用,而次氧化带的淋溶作用造成了金属元素的大量流失;(4)与新鲜尾矿相比,硬化层中铅的可迁移性大大降低,硬化层之下尾矿样品中铅的可迁移性也不同程度降低,这是由于硫化物氧化产生的硫酸根与尾矿中的铅反应形成铅矾(PbSO_4)的缘故;(5)氧化作用使尾矿中的zn、Cu等重金属的可迁移性不同程度地增大,其中对锌的可迁移性影响最大,铜的可迁移性与铁比较相似,铅则容易与硫化物氧化形成的SO_4~(2-)反应形成铅矾(PbSO_4);(6)为了减少尾矿污染和修复矿山环境,人们提出了各种不同的尾矿覆盖方案,本文的研究结果表明,这些方法不一定能够有效地阻滞污染元素的迁移。

Students who have a good command of metacognitive strategies tend to learn autonomously.

学生很好地掌握了元认知策略,就能够比较自主地学习。

The works in the project just done can be summarized as five respects.(1) A device was designed to fabricate the asymmetrical resonant cavities by a pendant drop. A series ARCs with variable parameters provides a valuable experimental method for investigating the characteristics of ARCs.(2) The relationship between the number of active modes and the shape parameters in an ARC was investigated. The experimental lasing threshold was compared with theoretical result, the good agreement between two shown that it was the decrease of the number of active modes in an ARC that decreased lasing threshold.(3) Dye lasing gain was used to enhance the signals of stimulated Raman scattering of the weak gain Raman modes in a circular cavity made by a pendant drop, the instantaneous SRS spectra of weak gain Raman modes in ethanol was obtained by this new method.(4) The SRS signals of minority compound in a binary chemical complex was obtained by using dye lasing gain method. The detection concentration of minority compound was reduced to an order compared with normal SRS method.(5) A cylindrical circular cavity was formed by a liquid jet, which was used to reduce the pump intensity required for laser induced plasma spectroscopy. The limit of detection of trace element in aqueous sample was greatly decreased by this new method.

我们设计并成功制作了使悬垂液滴连续变形的装置,用此装置可以方便地改变非圆对称谐振腔的几何参数,为ARCs的研究提供了一种有效的实验方法;研究了ARCs中活性模式数和变形参数间的变化规律,激光阈值的数值计算结果和激光辐射的实验结果作了比较,二者吻合的曲线说明ARCs中活性模式数量的减少是受激辐射放大阈值降低的原因;在由单元化合物构成的微型圆对称谐振腔中,首次尝试用"激光增益"增强弱增益拉曼模式的受激拉曼散射信号,获得了乙醇分子中弱增益拉曼模式的瞬态SRS光谱;在由二元混合物构成的微型圆对称谐振腔中,用染料的激光增益增强了少量化合物的SRS信号,把少量化合物的SRS信号探测浓度降低了近一个数量级,在SRS应用于瞬态过程的组份分析方面做了卓有成效的探索;用石英毛细管形成的稳定液拄构成拄形谐振腔,降低了激光诱导等离子体光谱需要的激励能量,有效地降低了水相样品的痕量元素分析极限,为LIPS应用于微量元素的化学分析开拓了一条新的技术路线。

Not only that but also many of the wines are bristling with personality and are perhaps as

当我们拿波尔多和勃艮地做比较的时候,另一个产区河谷一直在源源断地提供超高品质的葡萄

This paper analyzed the air-conditioning system of one specific office building in Beijing, calculating the costs of unit cold and heat exergy and the unit cold and heat capacity of adopting GSHP system and air source heat pump system separately. With these numbers as standard for evaluation and comparison, it supports the conclusion that adopting GSHP system is better than adopting air source heat pump system and the heat economics analyzing method is more accurate than that based on energy.

以北京某一办公楼建筑空调系统为背景,选用地源热泵系统和风冷热泵系统两种方案,具体计算出二者的单位冷火用成本和单位冷热量成本,并以此作为评价指标,经分析比较,得出地源热泵系统方案要优于风冷热泵系统方案;以火用为基础的热经济学分析法要比以能为基础的分析法更全面准确。

In the capital markets, a sound ownership structure of enterprises can get the favor of investors can be more easily and at lower cost to raise a larger amount of funding to be able to quickly develop their own.

在资本市场上,一个合理的股权结构的企业可以得到投资者的青睐,可以比较容易地以较低成本筹集到较大数额的资金,从而能够较快地发展自己。

There was a large amount of information in the whole cathedra,including the importance of information security and how to pledge the security of computer effectively.But I thought if adding more interactive parts,it would be better.

整个报告蕴涵的信息量比较大,从各个方面阐述了信息安全的重要性以及如何更为有效地保证计算机的安全,但我想如果能够适当地多增加一些互动环节,效果是不是更好?

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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。

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。

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。