1、

The model for the single unit ground-holding problem is established and the cost of flight delays is systematically analyzed.

研究了航班地面等待模型中延误成本的计算问题。

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2、

A multi-frequency pulse ranging algorithm based on phase comparison was proposed, its parameter selecting method was given and its performance was analyzed in theory;

建立了多频脉冲测距模型;提出了基于相位比对的多频脉冲测距算法,给出了该算法的参数选择方法;从理论上对算法的性能进行了分析;

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3、

The principle of gas leakage from bell socket of cast-iron pipe after conversion from manufactured gas to natural gas is analyzed. Four solutions including pipe replacement, PE pipe insertion, joint repair and gas humidification are introduced, and the techno-economic comparison of these solutions is made.

分析了天然气置换人工煤气后铸铁管道承插接口漏气原理,介绍了4种解决方案:管道更换、PE管内衬、接口修补及燃气加湿,对其进行了技术经济比较。

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4、

The correlation and differences between the paired data were analyzed for their statistical significance.

分析前后二次问卷配对数据的相关性和差异显著性。

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5、

Entry indexing methods is analyzed and improved. A simple indexing means called amplitude-power alternative method is raised. This method satisfied common amplifier nonlinear curve, moreover, it can be easily realized.

同时对查找表的地址索引方式进行了分析改进,提出了幅度功率二择一的简单寻址方式,能很好的满足常见功放非线性曲线分布的要求,而且算法简单易实现。

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6、
7、

The flexural problems of orthotropic rectangular plate with four free edges rested on elastic foundation have been discussed in this paper and analyzed by the Fourier trigonometrical cosine series and double trigonometrical cosine series.

本文利用Fourier双三角余弦级数和单三角余弦级数,讨论和分析了弹性地基上四边自由正交各向异性矩形板的弯曲问题。

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8、

The shape changes of cortical cell of yak hair fiber have been analyzed before and after stretching slenderization by means of ultrasonic separation.

借助超声分离技术,对细化前后牦牛纤维皮质细胞形态的变化进行分析,发现纤维皮质细胞被拉长变细且不发生细胞间的滑移。

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9、

And the feasibility of Parallel-flow heat exchangers applied to the surface cooler were profoundly analyzed in dry conditions.

然后分析了平行流换热器用于干工况作表冷器的可行性。

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10、

The effect of electromagnetic stirring ( S-EMS? F-EMS) on center equiaxial crystal zone proportion, central crack, contraction cavity, looseness in horizontal concasting round billet has been tested and analyzed.

试验和分析了电磁搅拌(S-EMS、F-EMS)对连铸圆坯的中心等轴晶区比率、中间裂纹、缩孔、疏松的影响。

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11、

According to plate-shell theory, location of rigid gear and flexible gear was changed with height location. On the basis of the mathematics model of contrate harmonic gear drive, the change law of meshing backlash of contrate harmonic gear was analyzed by meshing analysis software.

据板壳理论采用高度变位对刚轮和柔轮进行变位,在端面谐波齿轮传动数学模型基础上,用啮合分析软件分析端面谐波齿轮啮合侧隙的变化规律。

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12、

The qualitative identification methods of Doppler radar velocity PPI pictures are introduced. The related image features of convective rainfall clouds are analyzed: ① the zero-velocity lines in the wind field related to large-scale convergence or divergence in combination with cold or warm advection;

介绍了多普勒雷达速度PPI产品图像定性识别方法,分析了与对流性降水云体有关的图像特征:①冷暖平流与大尺度辐合辐散运动相结合的零速度线;

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13、

The velocity distributing, variation of extension rate, shear rate and the natural convergence angle of the fluid were analyzed under different initial entry pressure.

分析了在不同口模压力(P)下入口区速度分布、延伸应变速率、剪切应变速率以及流体自然收敛角的变化。

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14、

This paper analyzed several conventional coordinates converter circuits for raster scan radar display, presented a new type of performance-excellent coordinate converter called as" improved memory coordinates converter", and discussed the design and implementation of this converter.

分析了光栅扫描雷达显示器的几种常用坐标变换器电路,提出了一种性能优良的改进的存贮器法坐标转换器电路,论述了其实现方法。

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15、

Effects of modified electric convulsive therapy on schizophrenia and to analyzed the relevant factors

无抽搐电休克治疗精神分裂症疗效及相关因素分析

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16、

Objective: To explore the effects of modified electric convulsive therapy ( MECT) on schizophrenia and to analyzed the relevant factors.

目的:探讨无抽搐电休克治疗难治性精神分裂症住院患者的治疗效果,并对治疗中的相关问题进行分析。

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18、

The advantage and feasibility of pure open loop control of single phase boost power factor corrector are analyzed in this paper. The boundary of CCM and DCM is also presented in this paper.

讨论了Boost型功率因数校正器采用开环控制的优越性与可行性,分析了系统的开环工作性能,并且给出了变换器工作于电流DCM的临界条件。

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19、

SEM photoes which analyzed the microstructure of residues after burning showed the combustion mechanism of compounded flame retardant that was the result of corporate action of both solid combustion and gas combustion.

通过SEM对两种体系燃烧后的残渣进行微观结构分析,从而得出复合阻燃体系是固相阻燃和气相阻燃两种不同的阻燃机理共同作用的结果。

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20、

According to the change of the corrective network after a missile remodeling, the author analyzed the reason of this change, introduced the compensation principle of the band-block network and gave the design method of these active networks.

根据某导弹改型前后校正网络传递函数的变化,分析了网络变化的原因,介绍了陷波器消除结构谐振的补偿原理,并给出了此类有源陷波器的设计方法。

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