1、

In this paper, on the basis of deeply analyzing the spectrum feature of the target noise, a large quantity data of two sorts of target noise are simulated under the condition of different frequency, departure, depth and SNR.

本文还在深入分析了目标声场谱特征的基础上,分别建立了两类目标在不同频段、不同横距、不同深度及不同信噪比下的大量仿真数据。

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2、

Through two methods measuring cutoff thrust and pressure of com-bustion chamber when testing liquid propellant rocket engine on ground, cu-toff impulse as simulated altitude condition is obtained. These methods are revie-wed simply, too.

本文叙述在地面条件下试验液体火箭发动机时,通过测量发动机后效段推力与测量发动机燃烧室压力两种方法来求得模拟高空后效冲量,并对这两种方法作简单评论。

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4、

Structure-reasonable rotary impeller head has been investigated by the simulated test within water. A ceramic impeller head is manufactured and the degassing test in aluminium casting alloy in laboratory condition proceeded.

通过水模拟实验,研究了吹头的合理结构,制成了陶瓷吹头,并在实验室条件下进行了铸铝合金的除气实验。

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5、

JJ160/ 40-K oil derrick structural finite element modeling was built with ANSYS. Damage was simulated by changing the elasticity modulus. Modal analysis and dynamic response analysis is done at healthy condition and some damage condition. 3.

利用ANSYS软件建立JJ160/40-K型石油井架结构有限元分析模型,通过改变损伤部位的弹性模量来模拟结构损伤情况,并对结构完好状态和几种损伤状态进行模态分析和白噪声下时程响应分析。

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6、

Under the power grid voltage stability condition, simulated the current active and reactive component of the grid-side converter side independently.

在电网电压稳定的情况下,对网侧变换器的电流有功分量和无功分量进行独立控制仿真。

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7、

Changes of human skeletal muscle volume and cholin/ creatin ratio under simulated weightlessness condition and the effect of exercise in muscle atrophy

模拟失重对人体骨骼肌体积和肌内乙酰胆碱/肌酸比值的影响及等张运动对肌萎缩的作用

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8、

Used software Pro/ E to establish the installments full-scale mock-up, has simulated the leaf blade through MECH/ Pro specific interface program loading ADAMS the working condition.

本文采用三维软件Pro/E建立了装置的实体模型,通过MECH/Pro专用接口程序调入了ADAMS动力学分析软件来模拟叶片的工作情况。

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9、

Research of starting test of the small turbojet in simulated altitude condition

小涡喷发动机高空模拟起动试验研究

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10、

The radial and axial power distributions of normal operation ( category I or condition I) and abnormal operation ( category II or condition II) are simulated by using neutronics calculation code.

利用中子学计算程序对换料堆芯正常运行工况(一类工况或工况I)和中等频率事故工况(二类工况或工况II)中可能的堆芯功率分布进行模拟。

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11、

The varieties of preparation technology, including powder metallurgy, uni-directional solidification, simulated casting method under microgravity condition, stirring casting, rapid solidification, have been introduced based on the solidification characteristics.

根据难混溶合金的凝固特点,介绍了粉末冶金法、定向凝固法、模拟微重力熔融铸造法、搅拌铸造法、快速凝固法等几种不同特点的制备技术。

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12、

NO in the smoke can be oxidized to NO2 with the use of DC corona discharge, the air conditions are studied and the influences of flue gas condition and moisture on oxidant effect are simulated.

采用直流电晕放电氧化的方法可将烟气中含有的NO氧化为较易脱除的NO2,研究了空气条件和模拟烟气条件,水分对NO氧化效果的影响。

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13、

The relation between vertical obstacle height and rover parameters is inferred when two front wheels of planetary wheel of lunar rover passes obstacle under the condition that planetary wheel is not overturning. And it is simulated by ADAMS.

在行星车轮不翻转越障条件下,推导了月球车两个前行星车轮同时越障时可以爬过的垂直障碍高度与车辆参数的关系,并进行了ADAMS仿真。

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14、

On these bases, the model simulated and analyzed the thermal performance and the influence factors of the tower in the design condition and off-design condition.

在此模型基础上,模拟并分析了设计工况及变工况下冷却塔的热力特性及其影响因素。

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16、

With the FEM software eta/ Dynaform various forming condition were simulated in square box deep drawing process.

应用FEM软件eta/Dynaform进行了大量的方盒形件模拟拉深试验。

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17、

Finally, according to the different error condition, the miss distance of using kinetic kill vehicle to intercept TBM is simulated and analyzed.

在此基础上,对在不同给定误差条件下的拦截脱靶量进行了仿真计算与分析。

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18、

For pure PI the depth of charges injected into the sample are deeper in the same condition relative to nano sample, the electrons in traps transfer directionally after simulated, while for nano-sample, electrons are restrained by traps.

相同实验条件下,相对纳米样本,纯聚酰亚胺体内电荷被注入的深度较深,陷阱中的电子被热激发后进一步向试样内做定向迁移;纳米样本则不然,陷阱阻止了电子的定向迁移。

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19、

Secondly, set up the math model of function procedure of new type heat pump unit in summer and winter, then simulated study the possibility and characteristics of function to energy-saving air-conditioner, comparing the result to the regular air-conditioning flow.

然后建立了该新型热泵机组冬季和夏季运行过程的数值模拟计算模型,进行了节能空调流程的可行性及运行特性的模拟研究,并与常规空调流程进行了对比分析。

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20、

Assay for salt tolerance and drought resistance of transgenic wheat expressing betaine aldehyde dehydrogenase, obtained through particle gun method, were conducted under simulated salt/ drought stress condition.

采用室内模拟盐、旱胁迫,结合田间实际测定的方法,对基因枪法获得的转BADH基因小麦多个株系的不同世代材料进行了耐盐、耐旱性鉴定。

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