Based on the kernel method of support vector machines ( SVM) and wavelet frame theory, a new method called wavelet support vector machines (WSVM) is proposed. The method is applied to combination forecast, and an algorithm for constructing and training the forecast model of WSVM is presented.
基于支持向量机(SVM)核方法和小波框架理论,提出了一种称为小波支持向量机(Wavelet Support Vector Machines,WSVM)的新的机器学习方法,并把这种方法应用于组合预测,得到了一种基于WSVM的非线性组合预测新模型,然后给出了此模型的结构设计和实现算法.
A comparison is made on the loop forming movement curve and loop formation system of two needle bar warp knitting machine RD6DPLM/12 3 with that of Model DG506DPLM and RD6DPLM/12 warp knitting machines respectively. Compared to DG506DPLM,it is considered, the RD6DPLM/12 3 has a rational design in construction, higher speed and lasting machine life, it can satisfy the technological requirements still more.
FA261 comber, developed by Jinwei Textile Machinery, proves a rival of Swiss E7/5 comberwhen spinning export-oriented J18tex yarn with its speed up to 250-300 nip/min. The comber hadpassed the ministrial appraisal in September 1992 together with FA334 sliver lapper and FA344ribbon lapper,for which, production practice are also touched later in the paper.
The machine condition monitoring system presented in the article can realize collection and transferring of mach ine condition parameters, failure diagnostics, failure alarming and other functi ons promptly and reliably. The on-board test of ZL50 loader shows that predicted effects are achieved.
The results, based on the dynamic properties calculation of a typical mechanical spiral seal, such as stiffness coefficients and damping coefficients, exert the influence of the mechanical seal on the rotor-bearing system of the high-speed machinery.
In addition, the machinery fault data were analyzed by this method, and the attribute reduction sets were obtained further to satisfy the demand of feature selection in machinery diagnosis.
The fault diagnoses during the speed-up and speed-down processes for rotating machinery have been successfully completed.
But dynamic nanostructure and bio-machinery that depend on collective behavior of biomolecules have not been demonstrated.
In consideration of the needs of human beings, machinery and computation, the model has been used for structural design combined with relevant knowledge, means, maneuver and strategy.
The experimental results of a 2 × 2 integrated thermooptic Mach-Zehnder interferometer (MZI) switch based on multimode interference (MMI) couplers are reported.
Experimental data are obtained on the position of the line of separation as a function of angle of attack, cone apex angle, and flow Mach number.
It is shown that in the first case the sound intensity is proportional to M4, where Tij=ρ0uiuj is the Mach number (N is the vortex intensity, 2h is the distance between vortices, and c is the speed of sound).
Certain three-dimensional flows with Mach interaction of shock waves
In [1, 2] it is shown that there is a range of values of the Mach number and geometric parameters for which flow past conical bodies is realized with plane attached shocks and regular intersection of the shocks in space.