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Table 1 is comparison data before and after taken balance measures of seven pumping wells with poor balance, it can be seen from the results, when keeping pumping wells with essentially the same lift height and liquid production, improve degree of balance to increase the efficiency of the system.
Based on solving the problems of beam pumping unit, for example more energy transfer links, more complex structure, high energy consumption, investment, and a single function, let the flexible alternative to rigid transfer, substantial reduction in energy transfer links, through reducing rod weight load as a breakthrough to achieve light and compact oil production ground equipment, while minimizing energy consumption, increased functionality, lower investment and overall cost, and its innovative ideas are followings.
Greatly reducing the energy transfer link, rod weight down to 3/10; system function by only oil pumping extended to flexible rod operation, testing and other functions, a significant reduction in maintenance workload and costs; the volume and the whole weight of the pumping unit are lower than 1/10 of the original system; motor power down to 1/24 of the original; Pump efficiency and system efficiency were increased 20-40%.

It should be mentioned that there is no published data on specifications of the HIP process.
The reduction area percentage of creep test for cast, HT+ HIP and HIP + HT conditions is shown in Fig.4.
Fig.4 Variations of reduction area percentage in the cast, cast+HT+HIP and cast+HIP+HT samples Fig.5 Vickers microhardness value in the cast, cast+HT+HIP and cast+HIP+HT conditions Conclusion Due to deleterious effect of HIP process on microstructure of IN738 and especially morphology of g ¢ precipitates, it must be modified by secondary process like as heat treatment.

Introduction Reduction in the weight of engines is a key factor in improving the fuel efficiency.
Reduction of about 110 kg in a typical automobile of weight 1100 kg will improve fuel economy by 7% [2].
Quasistationary data were obtained by applying linear potential rate at 2 mV·min-1.

For the various devices under test, the best match to experimental data Fig. 2.
This causes significant reduction in current in the device.
Due to occupation of conduction band trap states, the occupied trap density does not saturate at high gate biases causing reduction in inversion charge at all bias levels.

High content of phosphorus causes reduction of the steel plasticity and toughness and cold short when it is in the low temperature.
High content of phosphorus causes reduction of the steel plasticity and toughness and cold short when it is in the low temperature.
From the result data is that the corner of the structure deformation is less, the maximum displacement of x and y direction is 0.032 m.

At the same time, grain refining can counteract the reduction of toughness caused by precipitation strengthening, which is the core advantages of V-N microalloying technology [2].
The regression analysis of the experimental data shows that: /P0,=0.01, /P0=1, =0; /P0,=0.05.
After soaking at 1200 °C for 1 h, each billet was hot rolled to a plate with thickness of 12 mm and total reduction ratio of 70%.

The approach required to determine these critical strains is described below and data obtained on two Nb microalloyed steels are summarized.
be initiated at all when relatively low pass reductions are employed.
rolling reduction, is only about 100 microseconds [5].

Even a small scale of initial geometric imperfection can lead to a reduction of over 50% in load-carrying capacity [4].
To simplify the problem without sacrificing accuracy significantly, only the nodal deviation in the direction perpendicular to the shell surface has been considered in the present study for the reason that these out-of-surface initial geometric imperfections, (in contrast to in-surface imperfections), cause a significant reduction of the shell’s capacity to transfer loads by membrane action.
In this study, the correlation coefficient function is assumed to have the form, (5) in which represents the least number of connecting members between two nodes, is the average length of these members, and N and L are the scale parameters of the random field, which usually are determined by experimental data or experience.

The major objective in drying products is the reduction of the moisture content to a level that allows safe storage over an extended period.
The average moisture content was expressed as non-dimensional moisture ratio ‘MR’ and used to plot moisture reduction with time in hours.
The diameter changes of experimental data correlated using the following equation of the form: D = a+bt+ct2+d and shown in Table 4.

The reduction in density of the PU/silk fibre composites may be due to the low bulk density of the silk fibre.
Data obtained from TGA analysis of silk fibre, (A) neat TDI PU, (B) 5% silk fibre TDI PU composite, (C) 10% silk fibre TDI-PU composite, (D) neat HDI PU, (E) 5% silk fibre HDI PU Wt of silk fiber in CEPU (wt. %) Weight loss at different temperature (%) 100 200 400 500 600 Silk fibre 3.0 4.4 45.0 67.0 95.0 A 0.3 2.0 58.0 85.0 99.0 B 0.6 2.0 57.0 84.0 98.5 C 0.1 3.0 60.0 84.0 98.5 D 0.4 1.2 49.0 85.0 99.0 E 0.9 2.0 42.5 84.0 99.0 F 1.2 2.3 46.3 84.0 98.5 Effect of biological fluids on swelling behavior: The swelling ratio of CEPUs and their composites with silk fibre in different physiological fluids (5 % urea, glucose, synthetic urine and saline water), Among the four different biological fluids, the samples in 5 % urea solution had shown the highest swelling ratio whereas the samples in saline solution showed lowest swelling ratio.
This result may be attributed to the reduction in the osmotic pressure difference between the composites and the salt solution with increasing ionic strength.