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This has also been observed in previous studies for outdoor weathering of polypropylene and is believed to contribute to the reduction of strength.
The As-Received (AR) samples were tested earlier and the results were used as baseline data.
The system is also equipped with a specialized data acquisition, data reduction and data plotting software.
On the other hand, the fracture strain is observed to experience an abrupt reduction in value that starts after 100 hours month of accelerated exposure (Figure 5).
As fracture strain is generally thought of as measure of material toughness, its reduction is an indication of lower toughness.

Nevertheless, preliminary mechanical property data seemed to show an improved superplastic response in Mg alloys processed via large strain hot rolling [10].
The processing route consisted on three rolling passes with reductions of 20%, 35%, and 55%, respectively.
However, significant scatter on the ductility data under these conditions was apparent.
The scatter in the ductility data might be due to the effect of uncontrolled precipitation during the temperature stabilization and testing time.
Data for this plot were obtained from strain rate change tests at 250flC and 300flC, with strain rates varying from 2x10-5 s -1 to 2x10-2 s -1 Conclusions The superplastic response of an AZ61 alloy processed via large strain hot rolling has been investigated.

It is very difficult to get complete data records with all 60 attributes, many records are incomplete and it is adaptable to do attribute reduction for them.
Though the input gas data is expressed in the percent of volume, the input data is still dispersant.
The diagnosing process is described as the following: Step 1: We use the first BAM network to separate normal state from all the data set, and we get normal data set and abnormal data set.
For abnormal data set, do step 2.
For overheating data set, do step3, for discharge data set, do step 4.

Based on in-situ observational data, we analyzed energy features of strong ground motion induced by short delay blasting in unsaturated loess field through three aspects of time history, frequency spectrum and attenuation.
For time histories, the data show exploding ground motion has two essential characteristics, i.e. larger peak ground acceleration (PGA) and shorter duration.
Fig. 2 shows the time-history data recorded at the centre position (UD, vertical component; SN and EW, horizontal components).
Time histories of the exploding ground motion For actual duration features of exploding ground motion, we adopted a quantitative criteria of acceleration () to analyze the time-history data as the follow
Using Eq. 2, duration features of recorded data (see Fig. 2) are summarized in Fig. 3 (the percentage representing the ratio of effective duration to duration).

Study on chloride ion penetration for concrete structures in zhunhai area Yi Wan1,a,Zhiwu Yu1,b,Peng Liu1,c 1School of Civil Engineering,Central South University,Hunan Changsha,410004,China a276353876@qq.com,bzhwyu@mail.csu.edu.cn,c23671871@qq.com Keywords: chloride;concrete samples;diffusion coefficient;alternate wetting-dry Abstract.The chloride concentration distribution is an efficient method of evaluating corrosion characteristics of concrete structures.A number of concrete samples at various positions were drilled in Zhuhai area and the free chloride concentration of concrete were determinated.Besides,the influences of elevations,distances from the sea and the local environment on chloride were analyzed.The value of chloride diffusion coefficient and surface chloride ion concentration along various elevation at the sea were calculated according to Fick’s second law.The results show that chloride’s erosive action tends to reduction with elevation and it is the most serious
Introduction The chloride erosion is one mainly reason of durability reduction for concrete structures in coastal areas,which is achieved by causing corrosion of reinforcing bar of concrete.The complex invasion mechanism of chloride ion is under the combined aciton including diffusion,capillary and permeability[1], and it is influenced by the physics and chemical actions between chloride ions and component materials of concrete.The deterioration of concrete relates to chloride penetration depth and permeability primarily,therefore,The determination of chloride concentration at different depths on the basis of natural environment is a reliable and practical method [2].
In addition,chloride concentration are between 0.14% and 0.4% within depth of 25mm.The convection plays a leading role in alternate wetting-dry area.And the depth of convection are 12.5mm,17.5mm,16.5mm,which is within the range of water transport(about 30mm) as previously demonstrated[6,7].At the elevations of +0.5m and +1m,there are convection and diffusion zone,where the convection depth is between 3.5mm and 6.5mm with about 0.72% at its peak.It turns out that chloride’s erosive action tends to reduction with elevation, the chloride concentration at the elevations of +0.5m and +1m is higher than others,it is related to humiture and soaking time of chloride.Furthermore,the relatively large convection depth is caused by the serious alternant wetting-dry at the elevations of +1.5m,+2.0m and +2.5m.
The diffusion zone of concrete samples at the elevations of +0.5 m, +1 m, +1.5 m were fitted based on equation(2).The picture of curve-fitting parameters is drawn in Fig.6,and the fitting data is shown in Tab.1.
elevation T/s Dcl/m2/s Cs/% R2 +0.5m 473040000 0.605E-13 0.904 0.954 +1.5m 473040000 1.468E-13 1.064 0.977 +2.5m 473040000 1.397E-13 0.823 0.947 Tab.1 Fitted datas of chloride diffusion Tab.1 indicates that the fitting surface chloride ion concentration is about 1% with a slight fluctuation.The calcuated chloride diffusion coefficient is in the order of 10-13m2 / s, and the previous literatures shows that it is in the order of 10-12m2/s,which may result from that there were hydration reactions of the magnesium ion,sulfate ion with the cement hydration products to form magnesium hydroxide and other substances.The pores of the concrete surface were filled with the formation of a barrier to prevent chloride invasion.

In a World Bank Report, Dasgupta, Zhang, Wheeler and Huq (1996) use data collected from factories in Beijing and Tianjin to evaluate the likely cost effectiveness the levy system would have in abating industrial water pollution.
The statistics form the foundation for understanding the data that we collected from our primary research, that is, from interviews conducted with government officials, industry managers, consultants and academicians.
As for the regression analysis, due to the limited availability of time-series data for Beijing, we decided to create two separate regression models.
The Model Summary section describes the success of the overall model in predicting levels of pollution for Beijing, and from it we can see that the in-depth Beijing model was a reasonable approximation of our data.
In other words, if Beijing were to reduce its share of heavy industry or state-owned industry, we would expect a reduction in pollution.

Data for the nanopowders characteristics, as well as output rate and energy consumption are discussed in this paper.
Other consequence of the DPM mode is reduction of the output rate because of the roughness of the target surface.
Therefore, reduction of the on-off time ratio leads to reduction of average laser power and plainly output rate.
That leads to increasing of laser intensity in focal spot, reducing of thickness of melted material, and reduction of the energy wasted for thermal conduction.
Ability of shortening the laser pulse is limited by fore and back fronts of the pulse and reduction of laser pulse energy.

Economic costs and loss reduction and energy saving should be taken into account when choose a transformer.
Accurate energy savings can be obtained by this algorithm without data collection during baseline period, all the need are parameters of transformer and energy loss during reporting period, thus the measurement and verification procedure has been simplified.
(3-1) After renovation or replacement, energy loss of original transformer under new load situation can be calculated with original transformer parameters and new load data, as shown as formula (3-2)
(3-2) As for energy loss of new transformer during reporting period, it can be obtained via data from meters or other measurements, or can be calculated by formula (3-3)
Loss reduction and power efficiency improvement of distribution transformer [J].

The deformed state and fully recrystallized state have been analyzed and compared with data obtained eight years ago.
Introduction A sample of cold rolled copper was deformed to 70% reduction and a part of it was recrystallized in the year 2000 [1].
SE reduction for S and Goss (G) components is smaller but visible.
The most important reduction of SE value is observed for rotated cube (Rwd) component.
Modeling of Recrystallization Using Monte Carlo Method Based on EBSD Data, Materials Science Forum, vol. 408-412 (2002), p. 395 [3] K.

Other data of the are related in Table 1.
Table 1 - Geometric data related to the kiln analyzed.
The temperature data was collected in a 15-minute interval, totaling 234 time intervals.
The storage and management of collected data was done via LabView software.
According to the data acquisition system,T0= 299.06 K.