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With the increasing demands for higher information storage densities, many researchers are devoting to pursue a number of strategies to develop high-density capabilities for optical data storage in organic-based systems [7].
According to the above aspects, we design a new class of hybrid photochromic diarylethene derivatives bearing a phenanthrene moiety, expect to have good photochromic effect to record more data.
Then, the compound 8 was formed by a reduction reaction in anhydrous THF.

Data in the tables demonstrates that mechanical properties of drill pipe meets API Specification 5DP standard requirement and hardness of the whole section has no serious difference.
Data in the table demonstrates that No-metal inclusion of drill pipe meets SY/T5561 standard requirement[2].
The reduction in tensile capacity of the drill pipe cannot be predicted because there is no method for predicting thedownhole temperature of the drill pipe at present, so its difficult to prevent such failure.

Test conditions: Normal load 10 N Frequency of movement 1 cycle /sec Lubricant Ringer’s solution Number of cycles 1´106 cycles Test temperature 37 °С Interval of data logging 5´104 cycles Table 2 Content of used Ringer’s solution No.
- normal wear – after achievement of the wear value of surfaces at which the optimal meanings of back-up surface are reached a stable friction process of bodies with gradual reduction of the friction force have place
[3] Lieberman J R, Two Alternative Bearings for Total Hip Arthroplasty: More Data Are Needed.

The value of each histogram bin is multiplied with its SVM weight then parallel reduction is used to add the weighted values and finally the hyper-plane bias is subtracted.
As shown in Fig. 6, in order to get high performance, all of constant data are stored in the GPU constant memory.
In comparison to GPU global memory, reading data from the constant memory is faster.

Data acquisition and equivalent circuit simulation was connected over personal computer.
(a) (b) (c) Fig. 4 SEM images of (a) Ppy (b) GO (c) Ppy/1% GO Fig. 5 TEM image of Ppy/1% GO Figure 6 revealed the real impedance (Z’) and imaginary impedance (Z’’) data curve of ropivacaine concentrations ranging from 1 to 20 ppm in 0.9% NaCl solutions were tested with Ppy and Ppy/1% GO, both coated over Au electrodes.
The addition of GO might have been the cause for the reduction in impedance and increasing the linearity.

Nevertheless, point source model often fails to describe characteristics of observed data of array while the space distribution characteristics of sources could not be ignored, which will lead to performance deterioration of high-powered parameters estimation algorithms.
Observed data vectors can be expressed as (1) Where is steering vector of the point source, is complex envelop of the signal, and is additive white Gaussian noise.
According to Fig.2, RMSE for azimuth and elevation of present method gradually reduce along with the reduction of SNR.

According to experience data, load should be no more than 5% capacity [7].
Therefore, in the process of starting large capacity auxiliary, bus voltage should be raised appropriately in to dampen the extent of the voltage reduction.
Ÿ In the future, black start field test should be conducted periodically, to obtain the relevant field data, revise the original plan and optimize plan’s procedure.

The phases formed in the milled and sintered Si3N4+C and Si3N4+B samples were determined by means of Pearson’s crystallographic data and Powdercell computer program 9, while the 2q position and full width at half maximum (FWHM) of major Si3N4 peak were calculated by integral method using the Gauss function.
It was noted a small reduction on intensity of peaks for longer milling times.
Comparing with the crystallographic data of a-Si3N4 at equilibrium condition, the lattice parameters and cell volume varied from 7.7519/5.6195 Å and 292.45 Å3 to 7.7558/5.6238 Å and 292.945 Å3, respectively, after sintering at 1500 oC for 1h.

In order to meet the reality of China's national conditions, many automobile manufacturers and R & D department has find a suitable for China's national conditions of the diesel engine emission control technology---- selective catalytic reduction (SCR) technology, this technology can effectively overcome the influence of sulfur content in diesel oil, thus favored.
Figure 1 The situation of NOx concentration in original diesel emission experiment Based on the measured data of each condition test (NOx emission value, gas flow, fuel consumption and exhaust temperature), we can obtain the calculation value of NOx emission is 6.24g/(kw.h) after calculation of standard method.
(5) The molar volume of the gas is V=22.4 L/mol = 0.0224 m3/mol under standard conditions, then the molar flow of NOx in unit time (unit: mol/h) can obtained: (6) Calculation of theoretical urea aqueous solution demand shows that per mole NOx consumes 0.0845 L urea aqueous solution, therefore, demand for urea solution, namely urea supply flow (unit: L/h) QL=0.0845/QM (7) Put the test data measured into formula (1) ~ formula (7), we can obtain theoretical urea solution demand for remove NOx completely under ESC different conditions as shown in table 1.

So the instruments in the circuit design in order to be able to eliminate the background noise using a variety of noise reduction of the environment through previous analog bandpass filter circuit processing, and ultrasonic signal into human ear can hear the voice, and the intensity of the sound on the LCD screen display, help detect personnel under the condition of the environment noise complex, detection of gas leaks.
System hardware circuit consists of pre-processing, mixing processing circuit, keyboard parts, display, data communication.
By the display screen, display driver module and other components, mainly is the instrument related information and relevant data leakage of ultrasonic signal display.The use of Chinese characters dot matrix display, testing personnel for visual judgment.Interface circuit is shown in figure3.