比较研究

Objective: By study of spectrum of disease-causing bacteria during ICU and non-ICU wards , provide the basis for the use of antimicrobial agents.

目的：通过对ICU和非ICU病房致病细菌谱的比较研究，为不同的病房对抗菌药物的使用提供依据。

Infectivity of Trichinella from swine and dog,and the international standard Trichinella isolates:T.spiralis and T.nativa in mice was compared in Heilongjiang province, China.

比较研究了黑龙江省猪、犬旋毛虫及国际标准虫种：旋毛形线虫和本地毛形线虫对小鼠的感染性异同。

The difference between the national "Code for design of metro"(GB50157-2003) and the NFPA130 "Standard for Fixed Guide-way Transit and Passenger Rail Systems" on calculation method for person evacuation time in the metro station fire is compared.

针对地铁车站火灾人员疏散时间计算方法的问题，比较研究国内现行《地铁设计规范》(GB50157-2003)和美国专门针对有轨交通系统的NFPA130标准的异同，其结果说明：国内设计规范关于人员疏散时间的计算方法存在不足；对区间隧道内列车着火的情况进行分析讨论，指出对列车在区间隧道内着火，且还能继续运行的情况，着火列车的运行速度对火势的发展以及人员疏散时间的影响是不可忽视的。

In Chapter Seven, This chapter established on the comparison of the Fibonacci's Liber Abaci, al-Khwārizmī'algebra and al-Karajī's al-Fakhrī.

本章建立在对斐波那契《计算之书》、花拉子米《代数》、以及凯拉吉的《奇妙之事》中代数学比较研究基础之上，分析他们在代数技巧、代数方法有效性的证明方法、未知数设定、二次方程分类、算题选择和设置形式等方面的异同。

The removal of micro-organic pollutants in the polluted water sources by the bio-nitrification process of oxygen enrichment with the elastic filling and micropore aerators has been studied for raw water in the polluted river.

为提高微污染水源水的饮用水质安全性，采用弹性填料微孔曝气富氧生物接触氧化工艺处理受污染的某水源原水，进行了除微量有机化学污染物的比较研究。

The plasma ignition threshold of metal is got through experimental and numerical study. The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al、Fe、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air .

从热传导方程和雪崩电离机制出发，假设当电子增值210倍时，考虑了温度对材料热力学和光学参数的影响时，得到了气化和等离子体点燃的时间，利用该模型进行计算得到的结果与国内外报道及自行通过实验测得的阈值基本一致；提出了利用刀刃法测量激光光斑面积的方法，并通过实验进行了验证和误差分析；利用光偏转装置和压电换能器分别对空气和水中金属等离子体点燃阈值进行了实验诊断，激光器均为调Q－YAG激光器（波长1064nm，532nm，355nm，脉宽10ns），靶材分别为Al、Fe和Cu，两种测试方法得到的等离子体点燃阈值基本一致；本文从实验和理论计算两个方面讨论了波长对等离子体点燃阈值的影响，均得到了等离子体点燃阈值随著波长的增加而减小的结论；对空气中和水中不同环境下金属等离子体的点燃阈值进行了比较研究，得到了金属在水中的等离子体点燃阈值比空气中的大，且水中产生的冲击波的压强是空气中的5倍左右的结论。

Activities and isozynies of POD and EST were analyzed with materials from different developmental stages of wheat original strains and their radiation mutants, and the relations betweens biological characters and isozymes were studied.

采用不同发育时期的小麦辐射突变体及原始品种材料对其酯酶、过氧化物酶酶谱进行了比较研究，并对一些农艺性状之间的相关性进行了测定。

A comparative study on high speed catamarans with round bilge and deep-Vee hull forms under the same paticulars is made.

对深V型高速双体船型和圆舭型高速双体船型在相同主尺度下进行了比较研究。

The rainfall-runoff data of eight catchments are selected and used to compare the modified NLPM-ANN with SLMANN and NLPM-ANN models.

选用8个流域的降雨径流资料，对改进的NLPM-ANN模型与SLM-ANN和NLPM-ANN模型进行比较研究。

This paper presents the results of an experimental comparison of carbon velvet cathodes and a common polymer velvet cathode.

研制了一种碳纤维天鹅绒阴极，并对碳纤维天鹅绒阴极和化纤天鹅绒阴极进行了初步的比较研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。