比较地

Objective:To compare the effects of different dosage of dexamethasone on rat lung morphogenesis.

目的：比较生后给予不同剂量地塞米松(dexamethasone，DEX)对大鼠肺组织形态发育的影响？

In the investigation of Cu-Zn-Al SMA, the influence of quenching speed, shape memory thermal treatment on SME, microstructure and morphologies was discussed. The changes in morphology and interfaces were in situ metallographic observed during thermal cyclings in order to control the degradation of two way shape memory effect . The stabilization of stress induced martensite variants method and the accordingly changes in microstructure were studied in detail. The mechanism was also compared between SSIM and TWME training method. From the above in situ observation results, the interface structure and especially the twin related A: B type variant pair were examined by HREM to clarify the role of movability of interfaces and the changes in variants orientation in inducing the degradation of the TWME. During developing the Ni-Ti-Hf SMA melt spinning ribbon, it was found the morphology and structure embodied the SME and was directly effected by chemical composition and technique factors, such as the different content of Hf, the speed of copper roller rotation and etc. Therefore, the morphology and structure were extensively examined.

在对Cu-Zn-Al形状记忆合金研究中，研究了提高记忆效应的热处理淬火速度、记忆热处理方式对Cu-Zn-Al形状记忆合金组织结构的影响；为了弄清双程记忆效应衰减的原因，原位动态观察了热循环过程中，合金组织形貌及界面的变化；因形状记忆合金必须经记忆训练才能具有双程记忆效应，系统地研究了应力诱发马氏体稳定化训练方法和这种方法引起的双程记忆合金组织结构的变化，比较了它与双程记忆效应训练方法诱发TWME机制的异同；因在原位动态观察中发现界面可动性及两侧变体取向的变化，伴随着记忆效应的衰减，用HREM详细研究了变体的界面结构，特别是A：B型变体界面结构及变体内部结构。

In order to diagnose disease caused by muscovy duck parvovirus rapidly and accurately, and at same time, further study the taxonomic relationship between muscovy duck parivovirus and goose parvovirus, two pairs of PCR primers (LHMP1/LHMP2 and LHGP1/LHGP2) were designed respectively base on complete nucleotide sequences of Muscovy duck and Goose parvoviruses registered in the GenBank, The LHMP1 for the upper one and the LHMP2 for the lower one, corresponding to the specific nucleotides sequence 454-472 and 1173-1155 respectively in MDPV, and the LHGP1 for the the upper one and the LHGP2 for the lower one, corresponding to the specific nucleotides sequence 454-472 and 1173-1155 respectively in GPV.

为了能快速、准确地对番鸭细小病毒病进行诊断，同时为了能进一步弄清番鸭细小病毒与鹅细小病毒在分类学上是一种怎样的关系，比较GenBank中MDPV和GPV的基因序列，针对这两种病毒左阅读框编码非结构蛋白基因序列的相同区段，分别构建两对PCR引物。第一对引物LHMP1／LHMP2是根据MDPV的基因序列设计的，上游引物针对MDPV基因序列的454～472；下游引物针对基因序列的1173～1155，为19个碱基，扩增跨幅为719bp。

We study the recursive structure of the twisted-cube connected network sufficiently, and prove that the twisted-cube connected network is an n regular graph with connectivity n: point out that the twisted-cube connected network is a cube-free network, which is an essential distinction with the hypercube and other variations of the hypercube; prove that the diameter of n dimensional twisted-cube connected network is [ (n+1)/2] , which is almost the half of hypercube's.

首先对其结构的递归性进行充分地研究，证明它是连通度为n的n正则图；指出扭立方体连接网络无立方体子图，这是扭立方体连接网络与超立方体及其其它变种的本质差别；证明了n维扭立方体连接网络的直径为[（n+1）/2]，它几乎是超立方体直径的一半；最后，给出超立方体及其变种的等价定义，并对它们的结构递归性、网络参数和拓扑性质等作了简单的分析、综合和比较。

Methods: The 17 cases of retrobulbar neuritis patients were divided into two groups, methylprednisolone in the treatment group and dexamethasone treatment group. Then compared the efficacy of the two groups and statistical analysis.

17例球后视神经炎患者分为两组，甲基强的松龙治疗组及地塞米松治疗组，比较两组的疗效并作统计学分析。

Abstract］ObjectiveTo compare the effect of carvedilol with metoprolol neuroendocrine and hemodynamics in patients with chronic heart failure.

摘要］目的比较卡维地洛与美托洛尔对慢性心力衰竭患者神经内分泌激素和血流动力学的影响。

The ground states properties of Ne-isotopes were calculated with Relativistic mean field theory. Compared with the experimental datas, its discovered that the nucleus properties chang regularly with the changes of neutron number when the proton number is even. The results proved indirectly that even nucleus has no direct influenced on another kind of nucleus. Besides, the applicability of Relativistic mean field theory in this region was tested.

用相对论平均场理论计算了Ne同位素的基态性质，并和实验比较，发现当质子是偶数时，核的性质有规律地随中子数的变化而变化，由此间接证明了偶数核子对另一类核子无直接影响；同时，也检验了相对论平均场理论在该区域的适用性。

I also briefly review some neutron star cooling models.

我也简单地评述了中子星冷却模型并与观测作了比较。

The control of post treatment process is the most important in the production process control of barrel nickel plating of steel battery shell.

本文结合笔者的实际经验对电池钢壳滚镀镍工艺进行了比较详细地论述，通

Objective To compare the effects of nicardipine and with nitroglycerin during CPB.

目的比较尼卡地平和硝酸甘油在体外循环中控制高血压的效果及对血流动力学的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。