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Because of the unreasonable exploitation method and technology, many oil resources are difficult to be exploited, and the waste of resources is also very serious.According to the data provided by Swiss bank's recent global oil status report, the proven oil reserves on earth are about 1.8×1012 barrels.Converted into the service time corresponding to the consumption level, the world oil can be exploited for about 46 years.Therefore, improving the way of oil exploitation is a subject that all countries need to face.In China's oil reserve structure, with the reduction of conventional oil resources, the proportion of low-efficiency reserves and low-grade reserves that are difficult to recover in the long-term development of old oilfields is increasing, and more scientific exploitation technology is paid more and more attention in the current oil situation.For heavy oil resources with large specific gravity and high viscosity, it is necessary to study its recovery technology.For China, heavy
This method has good viscosity reduction effect, but the treatment capacity is small.
Upgrading and viscosity reduction technology is relatively mature in heavy oil recovery technology.
(4) Combined with steam huff puff, Steam flood, SAGD and in-situ combustion technology, horizontal well and multiple medium well technology can make heavy oil reservoir obtain better development effect, which should be paid attention to in the future heavy oil thermal recovery technology. 4 Expectation (1) The development of heavy oil viscosity reduction technology is diversified: physical viscosity reduction includes thermal recovery method, thin oil blending method, ultrasonic method, etc., chemical viscosity reduction includes upgrading viscosity reduction and emulsification viscosity reduction, etc., microbial viscosity reduction can also play a certain role, and composite viscosity reduction is a comprehensive application of a variety of principles
(3) The evaluation method of heavy oil viscosity reduction is not perfect, and the dynamic viscosity reduction flooding evaluation based on static viscosity reduction evaluation is developing gradually.

The reduction in photoluminescence intensity observed over the laser irradiation times may be a result of potential degradation in the crystalline structure of the nanostructured ZnO film. 1.
A slight reduction in X-ray diffraction (XRD) intensity with increasing laser exposure time (number of pulses) suggests an alteration in crystal size or the presence of defects.
The reduction in crystallite size reaching a near-constant level after 2 minutes of irradiation may be a reason for the decrease in thermal effects and deformation on the film [41].
Following laser exposure, there is a noticeable reduction in the distribution of nanorods, suggesting surface deformation and the emergence of defects in the film's surface layer.
Laser irradiation time (min) Absorption peaks Band gap values (eV) PL peaks (nm) Average particle size FWHM 2θ EDX Data Weight(%) EX Data Atomic (%) 0 360nm 2.97 382 462 506 7.55 nm 1.1424 Zn (59%) O (40%) Zn (73%) O (26%) 1 358nm 3.02 383 463 506 6.2 nm 1.3876 Zn (63%) O (36%) Zn (70%) O (29%) 2 358nm 3.06 383 462 506 5.9 nm 1.6940 3 358nm 3.10 385 463 507 6.0 nm 1.4388 Indeed, a minor deviation in the band gap value of laser-irradiated nanostructured ZnO was in accordance with the presence of defects in the thin film [36].

Chiller power consumption, P1 (kW) These data are normally readily available and displayed on a BEMS system shown in Fig. 2.
The COP values obtained from the above equation result in better accuracy due to the fact that they were generated from experimental data.
Based on the BEMS system operational data, each of the fourteen chillers’ performance curves is generated on site, enabling a default operating priority to be established.
The data indicate that strategy 3, with CH6, CH8 and CH3 running at 70%, 90%, and 80% PLF respectively, results in the lowest additive power demand of 2046 kW.
The operational data indicates that the system’s chilled water flow was not balanced and needed further adjustment.

Most of the information of the original data can be conserved in the new indexes, and the new indexes are independent.
So PCA is helpful In order to reveal the simple structure hidden behind the complex data.
That means a great deal of data samples should be wanted for a more objective experiment result.
But usually we have no way to large data sample.
Also the complicacy in processing data should be considered.

The cooling and heating resources contained in urban sewage have significant influence on the “energy conservation and emission reduction”.
Introduction The urban sewage discharge in China is huge, and utilizing the thermal-energy contained in sewage significant influence on the “energy saving and carbon reduction”.
The overall goal is to bring the sewage thermal-energy resources into urban sustainable energy supply system, avoid disarray in construction of sewage-source heat pump projects, and play stronger role in "energy conservation and emission reduction".
The planning of urban sewage thermal-energy distribution can provide basic data for design and operation of sewage-source heat pump projects in planning district.
Researches on theory and method of urban sewage thermal-energy resources plan will provide important theoretical support and guidance for its extensive utilization, having significant influence on "energy conservation and emission reduction".

Foreign and domestic scholars have made a wide range of researches in damage identification with data of vibration.
Node vibration data far from the damage location was selected and collected to form the objective function.
How to find test points and collect data far from the location at the upper of the jacket.
Based on tested modal in q nodes, the modal data in the direction with the biggest range of variation can be selected as test data.
The data are used to form the objective function needed in the optimization module, the function is minfx=1nk=1n（Zij-zij）2

Fig. 1 Aircraft price relative to aircraft operational mass (source Avmark data).
The component mass estimating methods presented below are derived from statistical data of existing aircraft.
In general, the aircraft on which the data is based will be of conventional layout with a semi-monologue aluminum alloy structural framework.
As the design unfolds and more detailed geometric data are known it is possible to use formulae which include specific wing parameters.
This landing gear mass data shows a 99% correlation by the function Eq. 2 Muc = 0.0445 MTOM (i.e. 4.45%) (2) The data above does not take into account recent improvements in undercarriage materials and wheel brake design.

The hot deformation behaviors of the nickel-base superalloy GH4169 have been studied by isothermal constant true strain rate compression testing at 950˚C-1150˚C, 0.01s-1-10s-1 and the height reduction 50%.
The processing maps of GH4169 alloy have been constructed at different strains on the basis of testing data using a dynamic materials modeling.
The specimens were compressed with height reduction of 50%, in isothermal condition at the temperature and strain rate ranges of 950˚C~1100˚Cand 0.01s-1~10s-1, respectively.

Data acquisition.
Data enquiry and analysis.
Data enquiry and analysis function consists of functions of data enquiry and data analysis.
Data enquiry function deals with the historical data enquiry about distribution transformers, smart meters, air-conditioning system and so on.
Data analysis function makes analysis and processing of the collected historical data.

Experimental procedure The experimental testing device used in this study has been developed by Bech et al. [4] for thickness reduction of aluminium strips.
The upper die is made of hardened glass so the lubricant behaviour can be observed during thickness reduction.
The lower die is made of steel, with an inclined plane with an angle β=3° to apply the thickness reduction.
The aluminium strips have been subjected to a reduction of about 15% during the drawing process.
A VSI uses an algorithm to process fringe modulation data from the intensity signal to calculate the surface heights.