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The image of a random process in the Laplace space may be viewed as resulting from use of a oneway continuous wavelet transform with an exponential as the basic function, i.e.


Oneway analysis of variance (ANOVA) demonstrated significant heterogeneity among species for all variables.


This micro pump consists of two active oneway valves that make use of the same ICPF actuator.


The intragastric esophageal wall facing the fundus acts as a long oneway flap valve to prevent reflux.


A oneway analysis was conducted to compare the perceptions of the sample of parole officers and parole violators.

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 In this paper analytic solutions for the natural frequency and mode of an oneway continuous foursides supported rectangular ortothropic elastic plate with added masses and the steady response of the plate with complex damping under harmonic excitation are presented. The reaction of beams and added masses as well as con centrated forces are treated by means of Dirac δ function. The analytic solution is derived by means of finite Fourier transform. The solution thus obtained is a double trigonometric series... In this paper analytic solutions for the natural frequency and mode of an oneway continuous foursides supported rectangular ortothropic elastic plate with added masses and the steady response of the plate with complex damping under harmonic excitation are presented. The reaction of beams and added masses as well as con centrated forces are treated by means of Dirac δ function. The analytic solution is derived by means of finite Fourier transform. The solution thus obtained is a double trigonometric series and it is simplified by summing up as a single series. The solution can be used for various supporting conditions taking care of the torsional rigidity of the supports and the beams.The solution is superior to the energy method. In the latter method the mode of vibration has to be assumed, which usually leads to some errors. For some special cases such as nonuniform spans, odd supporting conditions or those with large added masses, the error will likely be more serious.Some computational results are given and compared with the results of energy method and experiment. The results of the solution presented in this paper agrees well with the experimental results. Practically in computation only a few terms of the series are required for engineering accuracy.  本文从四边支承的带有附加集中质量的正交各向异性单向连续板的力学简化模型出发,利用Dirac σ函数处理了板上的附加集中质量、集中激振力、中间支座的弹性反力和弹性扭转反力矩.采用有限Fourier正弦变换,求得了系统自由振动和复阻尼稳态强迫振动的解析解.首先得到的是一个双重三角级数解,然后对解式做处理,求出其中一重和,得到一个单级数的解,从而改进了解的收敛性,文中定义了一些处理连续板动力问题的基本函数,并对解所适应的边界情况和中间支座情况进行了讨论.作者根据解的适应范围编制了719机通用电算程序,对带有附加集中质量的连续板的自振频率、振型和动力响应进行了实例计算,和试验结果相当接近.  Experimental data of an airfoil wind tunnel are much influenced by upperlower and sidewall interferences. Although the upper and lower walls areventilated through longitudinal slots or small holes, wind tunnel interferenceconstitutes a serious problem for models tested in the transonic regime. Oneway to avoid wall interference is to build large test section wind tunnel or touse small models. However, large test sections require expensive tunnels andsmall models usually make Reynolds number too low.... Experimental data of an airfoil wind tunnel are much influenced by upperlower and sidewall interferences. Although the upper and lower walls areventilated through longitudinal slots or small holes, wind tunnel interferenceconstitutes a serious problem for models tested in the transonic regime. Oneway to avoid wall interference is to build large test section wind tunnel or touse small models. However, large test sections require expensive tunnels andsmall models usually make Reynolds number too low. Hence it is necessary tostudy experimentally the effect of the ratio of the half height of the test section (S) to the airfoil chord (L) on the flow around airfoils. An experimental investigation has been conducted in the Transonic WindTunnel of the Institute of Aerodynamics and Gasdynamics (IAG) of StuttgartUniversity to determine the effects of the ratio S/L. It is hoped that thepermissible value of S/L for different ranges of Mach number can be ascertained through experiments, so that the airfoil model chord and also the Machnumber can be justifiably increased. This investigation indicates that, whenMach number is smaller than 0.75, the ratio S/L can be reduced to 1.25 withoutintroducing siginificant effects of model blockage interference. But for theexperiments involving angle of attack and with S/L<1.5 we can not obtainsatisfactory results for the lift coefficient. In order to ascertain the effects of the side wall interference at the testsection, an experimental investigation in IAG Transonic Airfoil Wind Tunnelhas been conducted to study the twodimensionality of the flow around airfoils.The experimental results indicate that the twodimensionality of the stream isinfluenced not only by Mach number of the stream and model angle of attackbut also seriously by the value of the ratio S/L. The experimental data of thetwodimensionality research show that when the angle of attack is 6°or 8°, the twodimensionality of the stream around the model for S/L=1.5 is muchworse than those for S/L=2.0. Hence for small S/L and large angle of attack,comparable to those mentioned above, careful consideration should be given toside wall boundary layer control technique.  西德斯图加特大学空气动力学与气体动力学研究所(IAG)的跨音速翼型风洞的实验M数范围为0.4～0.95,采用喉道面积控制法,M数最大误差不超过±0.0035。该风洞有性能较好的三分力天平。模型在风洞中不对称放置,以减小上壁面对翼型上表面的压力分布的干扰,即可增大翼型弦长(L)与风洞半高(S)之比,从而可增大实验雷诺数。在该风洞中对于风洞半高及翼型弦长之比(S/L)对升力系数及流动二元性的影响进行了实验研究,结果表明,当M<0.70时,S/L可以小至1.25.其堵塞干扰仍没有明显的影响,但做有迎角的实验时,当S/L<1.5时,升力系数曲线得不到满意的结果。本文也给出了不同S/L值时流动二元性随M数及迎角的变化情况,由实验结果可以看出,流动二元性不仅随M数及迎角有较大的变化,而且受S/L的影响。  We succeeded in establishing a MLRCML model by using oneway MLC technique in a variety of experimental combinations of inbred strains with different H2 haplotypes.Results showed that:(1)the proliferation response and cytotoxic effect in MLC induction reached the peak values at 120 hr after initiating the culture;(2)a posi tive correlation existed between the proliferation response and the cytotoxic effect in MLC;(3)the induced CTL possessed the H2 specificity;(4)the cytotoxic effect of the CTL was... We succeeded in establishing a MLRCML model by using oneway MLC technique in a variety of experimental combinations of inbred strains with different H2 haplotypes.Results showed that:(1)the proliferation response and cytotoxic effect in MLC induction reached the peak values at 120 hr after initiating the culture;(2)a posi tive correlation existed between the proliferation response and the cytotoxic effect in MLC;(3)the induced CTL possessed the H2 specificity;(4)the cytotoxic effect of the CTL was enhanced by in vivo presentization of the responsdor mice with allogeneic spleen cells;(5)the CTL obtained in the induction of MLC were considered to be Thy1~+, Lyt 2~+ subsets.  本文采用单向 MLC 方法从不同 H2单型小鼠品系的多种组合中,建立了 MLRCML 体外检测模式。实验结果表明:(1)MLC 诱导中的增殖应答和杀伤效应在培养开始后的120小时到达高峰;(2)MLC 中增殖应答和杀伤效应间存在着正相关;(3)诱导的杀伤效应显示出 H2特异性;(4)体内致敏能增强体外诱导杀伤细胞的效应;(5)所诱导的同种特异性杀伤细胞属于Thy1~+、Lyt2~+(Tc)亚群。   << 更多相关文摘 
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