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Different from the traditional PCA is that 2DPCA is based on 2D matrices rather than 1D vectors. 2DPCA is an optimal dimensional data compression technology based on second-order statistics in the minimum mean square error sense.
Tiwari, IRIS recognition based on PCA based dimensionality reduction and SVM[J].

In fact, it is well known that, due to high juice concentration and low velocity, there is fouling in the last-effect vessel, which may result in significant reduction of the heat transfer coefficient [1].
(19) Operational data have indicated that fouling occurs mostly in the last-effect vessel of the multiple-effect evaporator, which in this case is the third vessel.

During use of this program, the following data should be input: Base circle radius: rj0=16.5mm; the wrap angle in the ascending buffer section: α0=26°, the lift: h0=0.22mm; the wrap angle in the descending buffer section: αl0=33°, the lift: hl0=0.22mm; the wrap angle in the ascending working section: αB=53°, the maximum lift: c0=6.5244mm; the wrap angle in the descending section: αlB=65°.
Fig.5 shows that in the medium- and low-speed sections where the engine frequently operates, the fuel consumption can be reduced by approximately 2%, while in the high-speed section after 3200r/min, the reduction of fuel consumption was more significant, which can reach about 3%.

Initially, the considerable increase in e values would be mainly due to the reduction of Curie temperature as shown in Fig 2b.
For BCTSZ compositions, the diffusivity and diffuseness parameters could be assessed from the slope and intercept of the dielectric data displayed in Fig. 3b, which should be linear.

Then achieve the purpose of noise reduction in the final.
From the data of simulation, we can obtain the final structure noise, which is 100.3dB.

The relative slenderness is (3) and the reduction factor is (4) where (5) Then the buckling bending resistance is
The very small design resistance is caused by (i) very small test number, and (ii) using the variation coefficient “v unknown”, that means, the variation coefficient has been calculated from the small set of test data, so that the value of variation coefficient is very significantly influenced by this.

Introduction The impact phenomenon can be extremely dangerous for composite structures because of the wide reduction of the structural performance induced by matrix cracking, fibre failure [1] and delaminations [2-9].
The nominal geometrical data and the properties of the adopted material systems are introduced in Table I, Table II, and Figure 1.

Lithium is the lightest metal, and its oxidation reduction potential is quite low, so the Li-ion power battery has many advantages of high voltage, large capacity, long cycle life, low self-discharge, non-memory effect, and non-pollution [2], which prompt the Li-ion power battery to be one of the new alternative energy.
LabVIEW is so closely integrated with the hardware that it is simple to program, you can quickly acquire, control and analyze the data.

A number of unloading modulus are also established, the damage is calculated by the reduction ratio that uninstall elastic modulus with respect to the initial elastic modulus.
The damage description of uniaxial tension compression The tensile and compression damage plastic parameters of conc rete materials C50 and C55 are got according to the experimental data of the literature[3] and the material properties of C50 and C55.

Tensile strength, elongation at break and tensile modulus (M100, M200, M300) data were evaluated from stress-strain curve.
A reduction in maximum and delta (∆) torque is observed as the MFM loading increases.