波动的

The results show that the force coefficient, the equivalent inductance and resistance are constant when the moving magnets oscillate in an operating region.

结果表明：推力系数在一定的动子行程内是基本恒定的，在上死点附近，推力系数有减小趋势；等效电感和电阻在一定的工作电流内是基本恒定的；直线电机等效电阻及电感的波动对活塞位移自传感器的输出几乎无影响，推力系数的波动影响活塞位移自传感器输出幅值的大小；若要提高直线压缩机活塞位移自传感器的输出精度，需要对模拟电路参数进行微调，以确保输出不失真，同时需要在活塞上死点附近对自传感器的输出进行修正。

To overcome volatility clustering problems,an adaptive neuro-fuzzy inference system is combined with a nonlinear generalized autoregressive conditional heteroscedasticity model that is tuned by adaptive support vector regression so as to tackle the problem of time-varying conditional variance in residual errors.

针对传统的自适应模糊推理系统无法解决波动聚类现象，通过分析自适应模糊推理系统和非线性广义自回归条件方差的特性，提出了融合自适应模糊推理系统和非线性广义自回归条件方差的调谐模型。调谐模型实质是指在对ANFIS和NGARCH进行独立运行的基础上，对运行结果进行动态调谐操作，从而提高系统的预测精度。最后，结合实际的项目数据，证明调谐模型提高了传统ANFIS对于波动聚类现象的应对能力，获得较好的运行效果

The way on how to compute the optimal math＇s model is given and the survival condition of optimal root is discussed.

研究了一种特殊的订单生产——准时制下非核心企业的生产，分析了计划范围内的成本，并分别就各种成本给出求解公式，尤其在能力波动费用的求解上，引进了符号函数，解决了在任意单位时间段内能力累计的数学表达以及能力波动费用的数学求解，在以上基础上给出了最佳生产的数学模型，给出了求解方法，讨论了最优解的存在条件，最后，讨论了在APS中的应用前景。

Objective:to study the epidemiologic characteristic of mortality of malignant tumors in zhongshan city.method:selecting the investigated datum of mortality of malignant tumor in zhongshan city as sample uses sas statistics software to analyse and forecast the mortality by time series.results:morlality of male malignant tumor and both male and female malignant tumour showed the risen trend from 1970 to 1989.the trend will be kept in future.both will be separately risen to 121.05/105 and 83.92/105 in 2 000.mortality of female malignant tumour will be kept in about 43.59/105 in 2000.couclusion:mortality of both male and female malignant tumor takes on the trend of diffirent change.the male showed risen trend;the female showed the fluctuation of non-trend random.rising mortality of malignant tumor greatly threaden the crowd health.

目的：研究中山市恶性肿瘤死亡率的流行学特点，为制定防治计划提供依据。方法：以中山市恶性肿瘤死亡率调查资料为样本，应用sas统计分析软件对恶性肿瘤死亡率进行时间序列分析与预测。结果：1970～1989年男性恶性肿瘤死亡率和男女合计恶性肿瘤死亡率均呈现上升趋势且有继续保持的趋势。到2000年将分别上升为121.05/10万和83.92/10万左右；女性恶性肿瘤死亡率呈现无趋势的随机波动且将继续保持下去，到2000年保持在43.59/10万左右。结论：中山市男女恶性肿瘤死亡率呈不同变化趋势，男性恶性肿瘤死亡率呈现上升的趋势，女性恶性肿瘤死亡率呈现无趋势的随机波动。恶性肿瘤死亡率的上升对人群的健康构成重大威胁。

In 1952 the first Kalinga Prize was awarded to him by UNESCO for his efforts to explain aspects of modern physics to the layman.

学院担任了两年义务讲座后，1928年被聘为新建立的巴黎大学享利·彭加勒学院理论物理教授，他担任这一职务从事教学工作一直到1962年退休。1945年以后，他还担任法国原子能委员会顾问。1930年到1950年间，德布罗意的研究工作主要是波动力学的推广，他的研究取得了许多成果，发表了大量评论和论文。1951年以后的一段时间，德布罗意研究粒子和波之间的关系，目的是通过研究用经典的空间和时间概念对波动力学作出因果解释。

The dissertation modifies the model of Holdridge's indexes of lifezone according to the features of the ecological climate of Xinjiang. The influence of the variation of vegetation caused by the climate variation of Xinjiang in recent decades is also analyzed. In recent 40 years, the type of life zone hasn't changed, the area and number of patch changed only. The diversity changed but not too much..That is, diversity of life zone changed in little range, the whole entiroment is still be a rather stable state, whill be goo for desertation expand contrandictorily.

根据新疆生态气候特征和生物地理规律对Holdridge生命地带分类模型进行修正，分析新疆近几十年来气候变化所引起的植被变化对于新疆土地荒漠化的影响。40多年来，新疆生命地带的类型数量并没有产生变化，只是各类型的面积和斑块数的变化，多样性有所波动，但是波动不大，也就是说生命地带多样性的震荡幅度不大，整个生态环境处于一种相对稳定的状态，这种稳定的生态环境状态有利于荒漠化的逆向发展； 7。

In different conditions on fluidized state and stability of conical fluidized bed. The conlusions are: the conical angel of the conical fluidized bed is 20°, the fluidized state havesmall difference in conical distributor and distributor plate. The angle of conical bed increase,the fluidized state will have big difference. The angle is 60°and the conical as distributor, themass of fluidized is less, the most of material is the bottom of conical bed. The effect ofdistributor plate is much better than the conical distributor. Sawdust and rice hull can fluidize.The annular gap of conical distributor different, the angle of conical bed is same, the fluidizedquality of 10mm annular gap is better than the other conical distributors. The annular gap ismore wide, the conical bed have more slugging phenomenon and the pressure fluctuate is turnbig.In the experiment the flow of 2％and 4％distributor plates don\'t easy to control, becausethe pressure is very big and the pressure fluctuate of conical bed is too big.

在不同的条件下对锥形床的流化状态和稳定性进行了研究，结果得出：锥形床的锥角为20度时，分布锥和分布板的流化状态相差不明显，随着锥形床锥角的增大，分布锥和分布板的流化现象会出现明显的变化，锥形床锥角越大，分布锥的流化状态变化越明显，流化的的物料越少，大量物料都聚集在锥形床底部，而分布板在加料量少的情况下，能流化起来。10mm、15mm和20mm环隙分布锥在锥形床锥角相同条件下，10mm环隙分布锥的流化质量要好于其它两个分布锥，环隙越大越容易出现腾涌现象的产生，压降波动范围增大。2％、4％和6％开孔率分布板在本实验测定时，2％和4％开孔率分布板的流量不容易调节，同时产生的压降波动范围也很大，比较来说，6％开孔率分布板流化质量好些。

The results reveal that spectra obtained by different parametric methods are similar. The spectra of normal cells' voltage have only one noticeable lobe due to fluctuation of molten alumina at anodes, while spectra of other abnormal cells have one mainlobe and one sidelobe. In cells with carbon in bath the spectral mainlobe of cell voltage is still due to the fluctuation of molten alumina at anodes and the sidelobe is due to the fluctuation of carbon in bath; in cells with metal pad wave, the spectral mainlobe is due to metal pad waving and the sidelobe is still due to the fluctuation of molten alumina at anodes. Compared with wavelet packet analysis, spectral analysis is simpler and takes less time in calculation, which is a big merit in the large-scale application of online diagnosis systems of working conditions in aluminum reduction cells.

研究结果表明：不同的参数估计法得到趋于一致的频谱分析结果，正常槽只有1个尖锐谱峰，对应于阳极下熔融氧化铝涌动的特征峰，其他故障槽都有2个特征谱峰，即1个主峰和1个次峰，碳渣槽的主峰仍然对应着阳极下熔融氧化铝涌动特征峰，次峰对应悬浮碳渣的涌动特征峰；铝液波动槽主峰对应铝液波动特征峰，次峰对应着熔融氧化铝涌动的特征峰；频谱分析相对于小波包分析具有算法简单、耗时少、物理意义明确等特点，在槽况在线诊断系统的大规模推广中具有优势。

Finally, the wave equation of the electromagnetic field of this kind damper isderived from the Maxwells equation. The magnetic flux density at the boundary isassumed to be harmonic, so the analytical result of the wave equation is solved. When therotor rotates, eddy currents flowing inside the conducting material field are caused. Thetangential force acting on the rotor because of the action between eddy currents andmagnetic field is produced. The tangential force causes a retardation torque, which leadsto the increase of power and heating effects.

最后，应用Ahrens的电磁轴承简化模型，从Maxwell方程出发推导了应用于本文所述的被动式电磁阻尼器的波动方程，并用傅立叶级数把矩形磁场展开的谐变磁场作为磁场的边界条件，通过求解波动方程得到磁场的解析解，从而计算了阻尼器对转子的电磁力和由涡流引起的切向力产生的阻尼器附加功耗。

The organic matter decreased in Autumn and reached to a valley in Winter, then it raised to the peak in Summer and Autumn; the total N fluctuated which change range is smaller than 5%; the soil NHt+-N rose firstly, reduced in Autumn and Winter, then rose in Spring; additionally, its peak appeared in Summer and valley in Winter; the soil NCV-N"s change was more complicated than NHU+-N and fluctuated with season whose peak appeared in rain season; the available N"s change tendency was similar to NH4+-N, it decreased in May; the hydrolysable N fluctuated in smaller range, and its content decreased steadily and showed no apparent peak in a year.

有机质含量秋季下降，冬季下降到低谷，随后逐步回升，夏、秋季达到最高水平；全氮的时间动态仅为小幅度的波动，变幅不足5％。铵态氮的变化趋势为：升高—降低—升高，高峰期出现在夏季，低峰期则出现在冬季；硝态氮的时间变化比铵态氮复杂，呈明显的波浪式起伏变化，最高峰出现在雨季；速效氮的时间变化与铵态氮类似，5月出现明显低谷；水解氮表现为小幅度的不规则波动，总的走势为平稳下降，全年没有明显高峰。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。