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In this thesis, the engineering property of the frozen earth in the frozen railway roadbed in Anduo section (between DK1561+975-DK1562+530) of Naquhe region of Qinghai-Tibet railway was studied indoor. The change of engineering property of the earth samples with different water content , density and temperature were researched. The influence of concentration of the diffluent salt to the frozen strength was pilot studied. The thermal conductivity of the soil was experimented. With the result and data of the tests, the earth temperature field in Anduo section was demonstrated by numerical analysis, the structure parameter of the spall revetmentd and the rubble berm was given, the stability of the railway roadbed was evaluated.

本文以青藏铁路格尔木-拉萨段那曲河地区安多段(DK1561+975~DK1562+530)冻土路基为对象,对该地区冻土的工程性质进行了室内试验研究;对不同含水率、不同压实度的土样,研究在特定温度变化范围内工程性质的变化:初步分析了易溶盐含量对冻结强度的影响:测试了土样的导热系数;在室内土工试验的基础上,根据测试结果和数据,对安多段区域地温场进行了数值模拟,分析了该工点区间内合理片石护道、碎石护坡结构参数,评价了路基稳定性。

Based on the observational data of the Honghe River flow in Manhao hydrometric station and precipitation field,temperature field in Yunnan,using the wavelet transform and correlation analysis method,the characteristics of the transboundary flow change of the Honghe River and the relationship with precipitation field and temperature field over Yunnan are analyzed.

以云南境内红河蛮耗站的多年径流量观测数据和云南的降水场、气温场观测数据为基础,应用小波变换和相关系数的统计分析方法,分析了红河的跨境径流量变化特征及其与云南气候变化的关系。

The maximum of the L/D appear at about 30-degree angle of attack. The bugle of the reentry module drops the trim angle. Pyrochemistry reaction largen Ca, Cn, diminish L/D and the trim angle. The variational tendency of aerodynamic characters with angle of attack in high altitude (higher than 105km) is different from that of in low altitude (lower than 105km).

返回舱凸出物使配平攻角减小;高温热、化学非平衡效应使轴向力和法向力系数有所增大,升阻比在数值上有所减小,配平攻角略有降低;返回舱0°~180°攻角范围内的气动力特性高空(105km以上)随攻角的变化趋势与低空(105km以下)的变化趋势不同。

Analyzing the primary characteristic and the power performance, this article discusses the changing regularities of the ratio in two types of HTC, which have different penetrativity.

分析对比液力变矩器原始特性和动力特性,讨论了当外界阻力发生变化时,具有不同透穿性的液力变矩器速比的变化规律及其对变速器传动效率的影响,指出在自动变速器设计中,合理选择液力变矩器的结构参数,特别是注重其透穿度与发动机适应系数的合理匹配,是提高自动变速器传动效率及汽车驱动功率的有效途

Fuzzy Logic Ratio Control of Continuously Variable Transmission System;2. analyzing the primary characteristic and the power performance, this article discusses the changing regularities of the ratio in two types of HTC, which have different penetrativity.

分析对比液力变矩器原始特性和动力特性,讨论了当外界阻力发生变化时,具有不同透穿性的液力变矩器速比的变化规律及其对变速器传动效率的影响,指出在自动变速器设计中,合理选择液力变矩器的结构参数,特别是注重其透穿度与发动机适应系数的合理匹配,是提高自动变速器传动效率及汽车驱动功率的有效途

In the submodel, the reflection coefficient of the canopy changed with the sine of the solar angle and the relationship between the extinction coefficient for photosynthetically active radiation and PDT was quantified.

模型引入高斯积分法简单有效地计算冠层每日的总光合量,并考虑了冠层辐射反射率的日变化及消光系数随生理发育时间的变化,使模型对冠层辐射吸收与光合作用的定量更加准确。

These results suggest that the effects of fertile island increase when the saline meadow degrades into shrubland and then decreases during the shrubland evolved into sandy desert.

这种变化反映了荒漠化在该地区发展所处的不同阶段,而肥岛中SOC和TN的富集系数是反映这种变化的有效指标。

Both the rat encephaledema of BS and BC were developed by intracranial injection of sludged blood to lead to hematom for observing the changes of the brain coefficient,water cont...

脑血肿组和黄芩甙组采用自体血制作脑出血模型,3组大鼠均测定脑系数并用干湿法测脑组织水分,同时病理镜检观察脑出血组和黄芩甙组脑组织变化,并采用高效液相色谱荧光法测定兴奋性氨基酸脑组织谷氨酸和抑制性氨基酸γ氨基丁酸含量变化。

Dissociate cortex cells from early postnatal wistar rats (postnatal hour 24) with DMEM were supplemented by horse serum and N〓 medium, and non-neuronal cell division was halted by cytosine arabinoside. As the result, enough neurons with extensive and synaptically active network were produced.

实验各组分别在造模后3、7、15天取材,观察动物一般情况、脑系数、脑组织含水量、脑组织HE、Nissl's、Mallory染色、投射电镜形态学变化以及TUNEL染色显示凋亡细胞等指标变化,并采用计算机图像分析系统对相关形态学指标进行定量分析。

Based on a computing model of floor heating residences, indoor thermal environment and heat distribution under the effect of heat charge/discharge, operation control and solar radiation has been concluded. Concept and formula of equivalent heat supply has been put forward which indicate that actual heat supply will be equal to the sum of design heat supply and equivalent heat supply. Recommend coefficient has been given taken Dalian as an example. Computed according to the new method, design heat supply can be reduced to 37% in cloudy day and 43.3% in sunny day, energy saving effect is very obvious. In Tromb wall solar house, effect of concrete wall on indoor temperature swing and attenuation of temperature wave is very obvious. While the outdoor air-temperature swing exceeds 10℃, indoor air-temperature swing belows 3℃. In the experiment, maximal difference in temperature between inner surface and outer surface of the 300mm wall exceeded 10℃. Heat storage and collector efficiency varies adversely according to solar radiation. Factors such as thickness, material, absorptance of the wall and permeation of the glass cover all have big influence on heat storage and collector efficiency. There exsisted an optimal thickness of the wall, which can make the best of heat storage and collector efficiency. Most of the heat stored in conventional Trombe wall during the daytime has been lost to the outside at night without heat preservation. Heat preservation on the outside surface of the wall has effectively improved heat release performance of the wall at night, heat supply to the room has increased too.

通过建立的地板采暖系统动态热性能分析模型,得出了在蓄放热特性、运行方式和太阳辐射等因素耦合作用下的室内热环境及热量分配比例,提出了等效供热量的概念及计算公式,指出实际所需供热量应等于设计供热量加上等效供热量,并以大连为例,给出了等效供热量的修正系数,以新方法计算,阴天可减少设计供热量37%,晴天最大可以减少设计供热量43.3%,节能效果显著;集热蓄热墙式太阳房中,混凝土蓄热墙的室温均一化效果和对温度波的削减作用非常明显,当室外温度波动最大幅度超过10℃时,室温波幅不超过3℃,实验中300mm厚墙体内外表面温差超过10℃;墙体蓄热效率与集热效率随太阳辐射照度的变化呈相反的变化趋势;墙体厚度、材料、表面吸收率以及盖板透过率等因素对集热和蓄热效率均有较大的影响,存在一个最佳的墙体厚度值,使得墙体集热和蓄热综合性能最优;传统的蓄热墙夜间没有外保温,辐射散热损失很大,研究表明墙体外保温方式明显改善了蓄热墙夜间的散热性能,增加了向室内的供热量。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。