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According to the energy conservation theory, BOM and CSIM4 were coupled. The BOM has no treatment on transmission solar radiation, which is of great importance when the model is adapted to Arctic Ocean. So the treatment was introduced to BOM. Through numerical test on different lead albedos, it was found that sea ice thickness is not so sensitive to lead albedo, which may be contribute to the lead occupies little ratio within multiyear sea ice pack. The reason of summer over-melt of arctic sea ice is the NCEP reanalysis downward solar radiation being larger than its reality. Then the arctic sea ice climate variability was simulated. Results showed that: simulated ice thickness change is in accord with the submarine investigated mean sea-ice draft changes. Simulated annually maximum ice thickness along the Eurasian continental oceans are closely related to the observed ones. The long-term mean simulated ice motion has the same features of the SSM/I derived ice motion. Sea ice extents in differential sub-regions have same trends comparing to the satellite passive-microwave data derived ones. Simulated ice concentration is closely related to the observed in the Arctic sub-regions. Sea ice flux through the Fram Strait involves ice concentration, motion and thickness. It is a composite criterion for sea ice model evaluation. The simulated ice area and volume export through the strait accord with the satellite derived or statistically reconstructed ones.(5) The simulated ice thickness climate variability and mean sea surface current of the coupled model were analyzed, results showed: the total ice volume in the Arctic Ocean has a significant decreasing trend. The volume variability is of a 10-year timescale oscillation, with two major periods of 12-13a and 18-20a. Mean ice thickness in the arctic sub-seas has different tendencies. It has an increasing trend in the Barents-Kara Sea and Baffin Bay-Labrador Sea, and decreasing in the others. The characteristic time scale of 7-10a wherein the river discharges leads the Fram Strait ice volume export is about the period that river water takes to be conveyed across the Arctic Ocean.(6) Using the simulated ice distribution in the Arctic Ocean and China precipitation, air temperature and SST in tropical key regions, the climate teleconnection were studied. Result showed: When the mean sea ice thickness is large in the central Arctic Ocean and Chukchi-Beaufort Sea , and small in the Barents-Kara Sea and Baffin Bay-Labrador Sea , the precipitation in South China, Tibetan Plateau, and the north part of Northeastern China are always smaller than normal, and v. v. When the mean ice thickness is small in CA, BC, East Siberian Sea and Greenland-Iceland-Norwegian Sea , and large in BL, The air temperature in north-eastern China, the southern of Tibetan Plateau, and Hainan Island, are always lower than normal, and v. v. In addition, when the sea ice is thick in BC and BL, the SST is larger in the middle and eastern Pacific Ocean, and is smaller in the tropical Southeastern Indian Ocean.

由于BOM没有考虑透射太阳辐射的物理过程,研究表明透射太阳辐射对北冰洋的能量收支起到重要作用,因此在BOM模式中引入了对透射太阳辐射的处理;通过对不同水道反照率的数值试验表明海冰厚度对水道反照率的敏感性不强,可能与海冰区水道面积占的比率很小有关;而模式模拟的北极海冰夏季&过度融化&主要源于NCEP再分析资料提供了偏大的太阳短波辐射;对北极海冰的气候变率进行了模拟研究,结果表明:模拟的海冰厚度变化与潜艇探测的海冰吃深度变化具有一致性;模拟和观测的亚欧大陆沿海的年内最大海冰厚度有很好的相关;模拟的海冰移速与长期平均的卫星反演的海冰移速具有相同的速度分布特征;模拟的各个海区海冰面积的变化趋势与卫星反演资料分析的结果基本一致;模拟与观测的主要海洋分区的海冰密集度具有很好的相关:弗瑞姆海峡的海冰体积和面积的输送涉及到海冰密集度、厚度和移动速度,是判断模式模拟能力的一个综合的指标,模式模拟的结果与卫星反演或重建的面积输送、体积输送具有很好的一致性;(5)分析了模拟的北极海冰厚度的气候变率及气候平均表层海流场,结果表明:北极海冰的总体积有显著减少的趋势,北极海冰总体积的变化具有10a际尺度振荡的特点,存在18-20a和12-13a两个主周期;北极海冰的平均厚度在各个海区的变化趋势不同,在巴伦支—喀拉海和巴芬湾—拉布拉多海地区海冰厚度有显著的增加趋势,而其它海区存在减少的趋势;通过对模拟的气候平均表层海流的分析表明,北极河流流量超前弗瑞姆海峡海冰流量7-10年的特征时间尺度与表层海流的气候分布存在着必然联系:(6)利用模拟结果以及中国降水、气温和热带关键区SST资料,讨论了北极各海区海冰平均厚度与中国降水、气温以及热带关键区SST的关系,结果表明:在北极中心海区和楚科奇—波弗特海海冰厚度偏大,在巴伦支—喀拉海以及巴芬湾—拉布拉多海海冰厚度偏小,则中国降水在华南地区、青藏高原和东北北部降水偏少,反之相反;在北极中心海区、东西伯利亚海、楚科奇—波弗特海以及格陵兰海海冰厚度偏小,在巴芬湾—拉布拉多海海冰厚度偏大,则在中国东北地区、高原南部地区和海南岛附近气温偏低,反之相反;另外,北极楚科奇—波弗特海和巴芬湾—拉布拉多海海冰厚度偏大时,在热带中东太平洋海温偏高,而在热带东南印度洋海温偏低。

Through field measurement for the contact pressure of box foundation with Ⅰ shaped plane of a high rise building on cobble subsoil, the distribution law of the contact pressure has been diagrammed. At the same time, the contact pressure has been calculated with finite compression layer model, which is well accordant with the measured result. The relative error of average value for the measured to the calculated contact pressure is 6.9%. This shows that the numerical calculation is right.

通过对西南交通大学某教学楼箱形基础基底反力的实测结果,得出了&Ⅰ&形平面箱基置于密实卵石层上的基底反力分布规律,又用有限压缩层地基模型对该箱基反力进行了计算,结果表明:实测反力与计算反力分布规律一致,实测反力平均值与计算反力平均值相对误差为6.9%,也说明此法计算箱基反力是可行的。

The average percent value of G C (49.3%) was less than that of A T (50.7%), there was a bias of the content of G, T in the third codon; The number of transition G-A and T-C were 22, 15 respectively, which were higher than that of transition A-G and C-T, the number of tranversion C-A, T-G is 2 respectively, and other tranversion patterns didnt occur; the probability of transition was higher than that of tranversion , Ts/Tv = 9.5-19, there was the highest number of transition in the third codon. The gamma parameter a of the lst,nd and 3rd codon positions were 0.00572,0.01237 and 1.05239 respectively, they showed that there was adifferent substitution rate at different codon position. Frequences of synonymous codon usage were relatively biased. The average rates of synonymous and nonsynonymous substitution were 0.0787, 0.0011 respectively, there was a significant difference between dS and dN (Z = 4.713, p.01), and the low ratio( CD = 0.0284 .3) of dN/dS ratio impled that there were selective constraints against the nonsynonymous sites in cyt-b gene, The distribution of nonsynonymous codon substitution pattern related to Grantharm distance indicated that the purified selection at 2nd codon positions was more intensive than that at 1st codon positions. The phylogenetic trees supported the view of the double origin of Chinese goose, which means that domestic Chinese goose was derived from Anser cygnoides and domestic European goose, and Yili was derived from Anser anser.

碱基含量分析可知,序列的G C含量(49.3%)<A T含量(50.7%),密码子第三位点的G、T含量都有较强的偏倚性;序列间G→A和T→C的转换数(22次和15次)高于A→G和C→T的转换数(10次和9次),C→A、T→G颠换数均为2次,其余颠换模式均未发生;转换数明显高于颠换数,Ts/Tv=9.5~19,密码子第三位点的转换数最高,呈现了相当强烈的转换偏倚性;密码子第一、二和三位点的gamma分布参数α值分别为0.00572、0.01237和1.05239,表明密码子第一位点的替换速率变异最大,第二位点次之,第三位点的替换速率变异相对较小;编码同一氨基酸的同义密码子并非随机使用,表现出一定程度的使用偏倚性;同义替换速率和非同义替换速率分别为0.0787和0.0011,dS与dN值间的差异极显著(Z=4.713,p<0.01),而ω=0.0284,明显小于0.3,表明雁属鹅细胞色素b基因序列经历了中度净化选择作用;单步非同义替换(Sing-step nonsymonymous codon substitution,SSNCS)分布模式与Grantharm距离之间的关系说明密码子的三个位点所受的净化选择强度不同;构建的最大简约树与邻接树拓扑结构一致,支持中国家鹅的双起源学说,即除伊犁鹅外的其它中国鹅品种起源于鸿雁,伊犁鹅和欧洲的郎德鹅、莱茵鹅起源于灰雁。

The grain size of the material prepared by dopping Sr in the position "A" or dopping Co or Ni in the position "B" of the La_4BaCu_5O_13+δ is small but it becomes bigger by dopping Ce in the position "A" of the La_4BaCu_5O_13+δ.

SEM测试表明材料的粒径随着温度的升高而迅速增大,但颗粒的分布比较均匀。A位掺Sr和B位掺Co和Ni时合成的材料的粒径较细小,而A位掺Ce时合成材料的颗粒较大,这与BET测试和孔径分布测试相一致。

Using harmonic analysis of the calculated tidal level and current, the distributions of co-tidal lines for K1, O1, M2 and S2 are obtained, whose maximum amplitudes can reach 112 cm, 96 cm, 50 cm and 15 cm, respectively. The distribution of the maximum probable current velocities in Qinzhou Bay is basically the same as that of isobaths, and the maximum probable current velocity can reach 200cms^(-1) nearby the Longmen Harbor. It is concluded by the analysis of K1 and M2 tidal current ellipses that the flow is rotating at the mouth of the bay, while its retilinear flow is in the nearshore area, estuaries and channels. The distributions of the major axes are closely related to the topography, and the rotation directions of both constituents are clockwise.

根据模拟结果计算得到了较以往更为精细的钦州湾K1、O1、M2、S2分潮的同潮图,潮汐最大振幅分别为112、96、50和15cm;最大可能流速的分布基本与等深线一致,龙门港附近最大可能潮流流速可达200cms^(-1);钦州湾的外湾口海域开阔,一般为旋转流,近岸海区及水道、河口等多为往复流,K1和M2分潮流椭圆长轴的分布与地形密切相关,旋转方向均为顺时针,流速极值出现在龙门港区。

The discrete ordinates model was used for modeling the radiative heat transfer, and the effect of slag particles on radiative heat transfer was included.

结果表明:炉体入口存在张角约为10°的中心射流区,其流速和温度均较高,且周围存在明显回流区,回流区内部分颗粒富集;大部分颗粒直接落入渣池,且粒径越大落入渣池时温度越高;炉内温度分布除中心射流区,整体分布均匀,且随壁面灰渣厚度的增加而升高;计算结果与实验测量结果及文献值基本一致。

Effect of the expansion rate of contact patch, due to wear of material, on the frictional temperature was analyzed in pure slide of wheel on rail.

结果表明:接触斑材料的磨损速度只影响磨损过程中的温度场分布,其稳态温度场分布基本一致;热载荷随着纵向载荷、蠕滑率以及摩擦系数的增大而增大,进而影响轮轨滚动接触热疲劳。

Firstly, the related parameters are distributed periodically in the falling film and their periods all equal to that of vacillation of fishing vessel. Secondly, the film tangent and radial velocity components are not zero because of vacillating additional inertia forces and furthermore, in one vacillation period, most parameters are distributed quite regularly in the tangent and radial directions. Thirdly, when other parameters are kept constant, the falling film absorption is enhanced if the amplitude or the period of vacillation is moderately decreased and this result conforms to the theoretical qualitative analysis. Finally, falling film absorption changes with the solution parameters at inlet and system pressure and the change trend is very similar to what happened in the static tube.

首先,降膜内相关参数分布具有周期性且周期等于摇摆振动周期;其次,摇摆附加惯性力使液膜沿吸收管周向和径向流速不为零,而且单位摇摆周期内各参数沿周向和管长方向分布比较规律;再次,当其他参数一定时,适当减小摇摆幅度和摇摆周期,液膜吸收能力将增强,这与理论定性分析相当吻合;最后,改变溶液入口参数及吸收压力,相应的吸收情况有所改变,其趋势与静止状态下的降膜吸收非常一致。

And has done the tired life test of the hypoid gear. As the samples of the test data of gear life test is very few, the author has made the error model of tes tinghypotheses when using k-s method, the auther presented a testing hypotheses method which can make use of the information of the samples and reduce the error of probability Calculation. It is Called"the improved K-s method". The author has used this method to deal witch the life test datas and the result is identical with the result of the theoretical calculation.

为对锥齿轮进行疲劳寿命试验,结合其它科研项目,研制了多功能数控齿轮传动试验台,并在该试验台上以SC110锥齿轮为试件进行了疲劳寿命试验,针对齿轮寿命试验数据一般样本很少的情况,建立了用K—S法进行分布律假设检验的误差模型,并提出了一种能充分利用样本信息,大大提高检验精度的小样本分布假设检验的新方法——改进的K—S法,并用该法对寿命试验数据进行了处理,得到了与理论分析计算一致的结论。

Based on the values of photometric redshifts, we form two enlarged samples including the newly-selected member candidates, with which the shape and dynamical substructure of Abell 2199 are also analyzed.

通过对团星系空间分布椭率和方位角的计算,表明该团星系的空间分布方位角与以往的研究显著一致。

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Means the parent directory, so this command means to execute "toolchain.sh," which is in the current directory.

代表父目录,所以这个命令就是执行当前目录下的"toolchain.sh"。

Yes,In fact,I'm on our city ream.

是的。事实上我是我们市队的。

The strong ionospheric disturbances caused by the significant magnetic storm appeared on the whole world.

用欧亚大陆地面电离层垂测站资料考察1989年3月12~16日磁暴期间的电离层暴形态及其发展变化。