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Abstract. 7000 series aluminum alloy is a high-strength alloy and used in a wide variety of products for the purpose of weight reduction in the field of transportation equipment and aerospace.
Introduction The 7000 series aluminum alloy is a high strength alloy to be used in a wide variety of products for the purpose of weight reduction in the transportation equipment and aerospace fields.
These data were recorded via a connection with a computer.

This module could greatly reduce the follow-up processing image data.
They are edge detection of steel, image noise reduction and implementation of real-time inspection.
Besides, this could also reduce the amount of image data to be processed.
To facilitate follow-up processing, noise reduction is always employed.
Gabor filter and wavelet-based filter algorithms have better effect on noise reduction [14-16], but their time complexity are high, so the actual production hardly make use of them.

This study does not have propositions for reduction of the diffuse sources.
Forest fires have an influence on the radiation balance reduction, the increase of the heat are also affected to the soil, the turbulence heat stream change and convection strengthening.
Improving the method of filtrating surface runoff using industrial waste (basalt chips) The analysis of global data shows that the problem of stormwater and meltwater purification, especially on the territories without any kind of sewer system presence, is more than crucial.
The method of the treatment of the surface runoff provides an economical and easy to use solution for the problem of pollution from diffuse sources reduction of the ecological balance of the surface waters and also the minimization of the amount of the production wastes accumulation.
Rodrigues, Margarida Tomé, Climate Change Impacts on  Pinus pinea L, Silvicultural System for Cone Production and Ways to Contour Those Impacts: A Review Complemented with Data from Permanent Plots, Forests. 10 (2) (2019) p.169 [2] Maria Margarida Ribeiro, Nata´lia Roque, Sı´lvia Ribeiro, Catarina Gavinhos, Isabel Castanheira, Luı´s Quinta-Nova, Teresa Albuquerque, Saki Gerassis, Bioclimatic modeling in the Last Glacial Maximum, Mid-Holocene and facing future climatic changes in the strawberry tree (Arbutus unedo L.), PloS ONE, 14(1) (2019) 21-62

Quite a lot of studies are focused on the attic space modifications due to reduction of the cooling energy needs [7,8].
Dry bulb air temperature measurement in attic space vs. data from an experimental weather station (av is ventilation openings with dimensions of 50 x 900 mm covered with a dense mesh a1, s2, s3 are sensors P-Micro with recording the temperature of the under roof space).
As shown in Figure 2 the measured data displays the external temperature varying between 30 °C during the summer days and -25 °C during the winter night.
It is important to note that with the 9°C reduction of the average attic air temperature caused by the ventilation can be a significant reduction of the attic-generated cooling loads.

From the results of Table 1, two systems after a high temperature have the overall performance of viscosity reduction, rheology deterioration and the corresponding hydration increasing.
But after adding polyol, the value of API dehydration, HTHP dehydration and mud cake thickness is greatly improved, with the mechanism that in the condition of high PH (PH = 11.5),the coordinated effect between potassium silicate - clay gels (chemical effect) and polyol loud point matters (physical effects) forms a the membrane structure of gel - cloud point effect, effectively enhancing the effect of blocking and filling, and improving the dehydration wall capacity with thin mud cake, density, and dehydration reduction.
Table 5 Anti- cuttings pollution capacity of potassium silicate polyol drilling fluid system system cutting dosage ％ API result AV PV YP APIB,ml APIc,mm mPa·s mPa·s Pa potassium silicate polyol drilling fluid system+cuttings Note: cuttings are Sichuan red-layer soil 0 3.4 0.5 29.5 19 10.5 5 5.7 0.5 32 22 10 10 5.9 0.5 36 25 11 15 8.2 0.8 45 32 13 20 10.7 1.0 50 31 19 Note: cuttings are Sichuan red-layer soil It can be seen from the experimental data in Table 5 that along with the increase of cuttings content in potassium silicate polyol drilling fluids, the apparent viscosity, the plastic viscosity and dynamic shear of the system are on the rise.When the cuttings dosage increases at the amount of 15%, the apparent viscosity increases significantly, the drilling fluid becomes apparantly dense, mud cake grows thick, severe dehydration increases, but system performance can still meet the drilling requirements; when the cuttings content reaches at 20%, it can not meet the demand
Table 6 Lubrication Performance Evaluation of potassium silicate polyol drilling fluid system system mud cake friction coefficient Kf friction reduction coefficient rate％ 4％Sodium bentonite slurry 0.0748 － potassium silicate drilling fluid system 0.0541 27.7 potassium silicate polyol drilling fluid system 0.0326 56.4 According to CNPC, the proposed standards for ordinary drilling fluid are that Kf is controlled at the range between 0.05 and 0.09.
It can be known that from the experimental data in Table 6 , the friction coefficient Kf of potassium silicate polyol drilling fluid is only 0.0326, lower than 0.05, with good lubricating properties, which lays sound foundation for reducing friction of drilling tool and effectively decreasing the occurrence of underground complex accidents as well as drilling smoothly.

In order to determine the reduction reaction temperature of boron oxide in ammonia gas atmosphere, XRD patterns of composite powders by reduction at serial temperature are shown in Fig.2 a).
According to the calculation result of thermodynamics using thermodynamic data taken from JANAF tables, the temperature of boron oxide reacting with ammonia to form boron nitride is about 673oC based on the equation (1) as following [10].
There is some difference between hexagonal BN and turbostratic BN, and not any thermodynamic data about turbostratic BN.
Thus, ZrO2-BN composites with homogeneous microstructure are successfully prepared via a new mixing processing, followed by reduction and hot-pressing.

All tensile tests have been performed inside the environmental chamber of the testing machine after a heating time of ten minutes and with an acquisition system from which load and displacement data are obtained using a specialized computer program.
The original data have been then processed to calculate true stress-strain relations.
The flow stress reduction trend is similar to the observed under the treated condition.
The micrographies also show a lower mass percentage of the precipitates for the T6 condition; it is because Mg2Si precipitates are more diluted in the α-Al matrix, resulting in a material hardening and a reduction of the ductility.
Although the material phases are the same in both annealed and treated condition, a lower mass percentage appears in the age-hardening material; it is because Mg2Si precipitates are more diluted in the α-Al matrix, resulting in a material hardening and a reduction of the ductility.

Since the late part of the 1990s; however, the reduction effects of wind-induced vibration response due to the wind load have been conducted only for aeroelastic model tests with TLD installed above the highest floor in the aeroelastic model that is similar to the actual model[4].
Results and Analysis In aeroelastic vibration model test using wind tunnel, totally 6 TLCD models with varying length (Lh =25mm, Lh =30mm, Lh =35mm) of horizontal tubes and 2 different mass ratios (1.5%, 3.0%) in the middle of top layer of aeroelastic model were installed to find out the effect of reduction of lateral direction vibration response(displacement) in mutually different TLCD test model.
The measurement data were measured 5 times for 4096 measurement data values with a sampling frequency of 500Hz.
Spectrum for across-wind displacement response (length of horizontal tube; Lh =35mm) Conclusion To find out the effect of reduction of vibration response in high-rise building where TLCD installation takes place, aeroelastic experiment was done after installing TLCD at top layer of aeroelastic model in which the ratio of the long side to short side (Depth/Breadth) is 3, and the following conclusions were obtained: 1) Displacement response was decreased with the increasing mass ratio and tube length when compared to the model without TLCD.

Geng etc. used CFD method for car engine cooling fan noise reduction study [2].Liu etc. did research on aerodynamic wind noise [3].
Fig.3 Pressure of cooling module model YZ section a) Vorticity at radiator outlet b) Velocity at radiator outlet Fig.4 Vorticity and velocity of radiator outlet The Sound Field Calculation and Test The blade surface pressure pulsation data is input in LMS Virtual.Lab Acoustic for sound field calculations.
And the B&KPULSE 3560B multi-analyzer is used to get the cooling module noise data [8].The actual rotating speed is adjusted by changing voltage to ensure consistency with the simulation.
A Study on CFD Simulation Analysis and Noise Reduction for the Cooling Fan of Car Engine.
Noise-Reduction Mechanism of Bionic Coupling Blade Based on the Trailing Edge of Goshawk Wing.

Then, in intervals time adapted to the rate of change of the average strain reduction was made of the loading force to moment of reaching initial elongation of measuring section.
Table 1 lists the data for the samples subjected to tests of relaxation.
Table no. 1 Levels of load on each sample, taking into account the age of the concrete Sample Age at the time of load Strength of the sample fc [MPa] Initial tension [MPa] initial effort of concreto σo/fc W1 3 years 29.6 16.5 0.56 W2-1 7 days 37.8 16.4 0.43 W2-2 14 days 46.9 16.4 0.35 W3 21 days 49.5 16.6 0.34 W4 28 days 50.8 16.4 0.32 W5 48 days 40.6 15.2 0.37 W6-1 59 days 47.6 12.8 0.27 W6-2 66 days 47.6 15.2 0.32 W6-3 75 days 47.6 18.6 0.39 Results of Research Results-after processing the data obtained from the study relaxation graphs of concrete samples from W1-W6 were obtained in the form of reduction in tension in given time.
The phenomenon of relaxation of the 28-day loaded element with initial tension value 0.32fcm reached after 3 days 60% reduction in tension, thus the effect is three times bigger than due to creep.