特征参数

Introduce and analysed lukewarm the characteristic that controls a system, gave out then the design that gray forecasts ambiguous controller, through Matlab emulation experiment makes clear, when systematic parameter produces change, use this method and photograph of effect of groovy PI control to compare, having better control precision and dynamic character, to actual constant temperature control has certain direct sense.

介绍和分析了温控系统的特征，接着给出了灰色猜测模糊控制器的设计，通过Matlab仿真试验表明，在系统参数发生变化的时候，采用此方法和常规PI控制效果相比，具有着更好的控制精度和动态特性，对实际恒温控制具有一定的指导意义。

Firstly,the inputs of the lyrics are converted into speech with the text to speech synthesis system.Then,the melody parameters of the song are extracted from the MIDI file.At last,the melody control model is adopted to achieve the lyrics to song conversion by modifying the acoustic parameters of speech signal.

首先利用一个文语转换系统将输入的歌词转换为语音，同时从歌曲的MIDI文件中提取歌曲的旋律参数，最后通过旋律控制模型对语音信号的声学特征进行修改，实现由歌词到歌曲的转换。

According to the characteristics of fault current sequence component on six-phase transmission lines, the paper proposes a novel fault phase selection scheme. The scheme can accurately distinguish the faulted phases under various fault conditions, and can be free from the influences of the transition resistance and system parameters.

2综合六相输电线路故障电流序分量的幅值和相位特征，提出了一种适用于六相输电线路的故障选相方案，该方案在各种故障情况下都能做到准确选出故障相，并且还有不受线路参数变化和接地电阻影响的优点。

According to the geological condition and geometrical characteristics and physical mechanical index of coal seam for large-section face of starting cut of Dafosi coal mine in Binchang mining area,the design of bolt with wire mesh is accomplished and the supporting parameters are given.

根据彬长矿区大佛寺煤矿煤巷大断面开切眼的地质条件、几何特征及煤层的物理力学指标，完成了锚网支护设计，给出了支护参数，利用FLAC软件对煤巷开切眼的稳定性进行了评价。

The results show that the flow stress increases with the increase of the strain rate, and decreases with the increase of the deforming temperature. The saw tooth fluctuation of the flow stress at higher strain rates and lower temperatures indicates the discontinuous dynamic recrystallization. The flow stress of the aluminum alloy during hot compression deformation can be described by using Zener-Hollomon parameter including Arrhenius item, and the deformation activation energy is 176.54 kJ/mol.

研究结果表明：流变应力随应变速率的增大而增大，随变形温度的升高而降低，在高应变速率和较低温度条件下，应力出现据齿波动，呈不连续再结晶特征；该铝合金热压缩变形的流变应力行为可用包含Arrhenius项的Zener-Hollomon参数来描述，其变形激活能为176.54 kJ/mol。

To improve calculation accuracy of reservoir parameters, relationship of formation factor , or saturation exponent with porosity has been studied and established based on geologic characteristic of Bayantla oilfiled and oil saturation measured by mercury intrusion method, and four-property relationship.

计算储层参数是测井解释的基础，以巴彦塔拉油田岩性、物性、含油性和电性之间的关系研究为基础，以压汞资料计算的饱和度为参照，依据巴彦塔拉油田实际地质特征，研究地层因素F和饱和度指数n与孔隙度的关系。

In the light of geological characteristics of Dongfang 1-1 Gas Field, mass indoor experiments are conducted and studied. Sand grain level are analyzed, the sand control parameters and screen pipe and blind pipe combination proportion is optimized. On this basis, the most suitable horizontal screen pipe sand control method for this gas field is found. Through the medium of DONGFANG 1—1 gas field field conduct proven, the sand control technology are completely run up to DONGFANG 1-1 gas field completion require.

针对东方1—1气田的具体地质特征，通过大量的室内实验研究，对地层砂粒度进行了分析和分选性研究，对防砂参数和筛管与盲管的组合比例进行了优化，从而找出最适合该气田的水平井筛管防砂完井方法，通过东方1—1气田的现场实施证明，该防砂技术完全达到了东方1-1气田完井的要求。

Based on the nonlinear dynamical model of the rotor-bearing system with rub-impact fault, the stability of the periodic motion of the system in unbalance-rotating speed plane and rotor/stator clearance- rotating speed plane were studied by the continuation-shooting algorithm. The system periodic motion and its stability were obtained. An experimental setup was developed to investigate nonlinear vibration characteristics of such rotor bearing system.

根据碰摩转子轴承系统的非线性动力学模型，利用延拓打靶算法，在碰摩转子轴承系统不平衡量-转速和碰摩间隙-转速参数域内，研究系统的周期运动及其分岔失稳等动力学行为，得到了系统周期运动的稳定性及失稳规律；建立了研究转子轴承系统碰摩故障的实验装置，通过实验，研究了转子系统碰摩故障的非线性振动的特征。

Structure characteristics of the different macerals of 5 low-to-medium rank coals were studied by means of 13C-NMR. The molecular structure characteristics and parameters of the macerals were discussed. The result indicates that the aromaticity of inertinite is higher than that of vitrinite.

利用13C-NMR核磁共振技术对中低变质程度煤显微组分的分子结构进行了研究，计算了5种煤9个显微组分的13C-NMR结构参数，获得了样品的结构特征及变化规律。

In this paper, we have certificated the correctness of the simulation mathematic model and the prediction programs by calculating horizontal stationary turning circle motion and vertical stationary submergence motion, and then have predicted the six motions of tow submarines in order to get the feature motion parameters and the motion track of the center.

本文首先通过对潜艇水平面定常回转运动和垂直面定常直线潜浮运动的计算，验证了仿真数学模型和预报程序的正确性，然后分别仿真预报了两艘潜艇的六种运动的特征运动参数和重心运动轨迹，其预报结果符合工程实际，能够较为全面地反映潜艇的空间操纵运动。

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。