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The Research Status and Indicators Setting of Circular Economy at Three Gorges Reservoir Region Circular economy means the mode of economic development which can utilize resources in the most effective way, protect environment, and organize economic activities based on the principle of “reduction, reusing, and recycling” [1].
All data are from Chongqing Statistical Yearbook (2008).
Table 1 Cycling Capability Indices of Industrial System standards projects unit Standard value Chongqing 2008 Three Gorges 2008 quantity GDP per capita Dollars per person 3315 9761 1270 Industrial structure height index -　 2.5 2.3 1.9 quality reduction consumption of material per ten thousand yuan output kilogram-equivalent weight per ten thousand dollars 8254 6241 2080 consumption of water per ten thousand yuan output m3 per ten thousand dollars 4301 2580 861 waste emission per ten thousand yuan output ton- equivalent weight per ten thousand dollars 65.25 39.15 13.05 recycling Full use ration of industrial water % 72.5 43.5 14.5 the rate of multipurpose utilization of industrial waste % 54.8 32.88 10.96 Hazard-free discharge standard rate of industrial waste water % 89.2 53.52 17.84 Comprehensive disposal rate of dangerous waste % 99.98 59.98 19.99 The article also conducts a comparative analysis on the development of circular economy of Three Gorges Reservoir Region.
Meanwhile, require producers to promote clean production, and implement the principles of “reduction, recycling and hazard-free”.

Through experimentsof this paper and analysesto provide basic data and guidance for 0.3C-Cr-W steels electron beam welding process and post-weld heat treatment process.
Table 2-1Tensileproperty of the base metal and weld after heat treatment Tensile strength (RM/MPa) Yield strength (Rp0.2/MPa) Percentage elongationafter fracture(A%) Reduction of area (Z%) Base metal after heat treatment 1320 1190 13.0 60.5 Weld after teat treatment 1010 910 21.5 69 From the Table 2-1 we can see the base metal after heat treatment is 1320MPa, weld’ tensile strength of after heat treatment is 1010MPa, the latter is lower 23.4%than the former.
As can be seen from the percentage elongation after fracture and reduction of area of the weld after heat treatmentincreased 65% and 14%respectively, which showed the plasticity of weld after heat treatment is better.
All these mentioned above are the reason for the reduction of strength and hardness at the weld after heat treatment.

BET surface area of photocatalyst was determined by N2 adsorption/desorption, with data summarized in Table 1.
More intensive reduction in the concentration of phenol with increasing oxygen pressure, going, apparently, due the flow of process photocatalytic reduction oxygen.
This increases the speed of the photocatalytic oxygen reduction followed by oxidation of phenol.

C Si Mn P S Cr Ni Mo V Cu 3.5NiCrMoV 0.24 0.06 0.3 0.009 0.011 1.8 3.88 0.45 0.12 0.06 13Cr 0.21 0.32 0.62 - - 13.36 0.46 - - - -: non data Table 2.
Generally, the anodic and cathodic reactions on both of inside and outside surfaces of crevice of 3.5NiCrMoV steel plates should be mainly the ionization of Fe and the reduction of O2, as shown in Eqs. 1 and 2, respectively.
It is therefore suggested that the dominant cathodic reactions particularly inside the crevices were the reductions of H+ shown in Eq. 4, so that the decrease of pH inside the crevices was controlled.
Therefore, the dominant cathodic reactions particularly inside the crevices were the reductions of H+, as shown in Eq. 4, which were the same as for the specimens of 3.5NiCrMoV steel.

We developed an effective method previously for the cleavage of the C(17)-C(7) bond via reduction of the corresponding 8-chloro derivatives in high yields (over 80%) [4,6].
It is interesting that one-pot treatment [6] of 5 with SOCl2-C6H6 at room temperature overnight followed by reduction with NaBH4 in THF to cleave the C(17)-C(7) bond through an intermediate 8-chloro derivative via Grob fragmentation [4,6] produced not only the expected compounds 6 and 7, but also the unexpected rearrangement product 8 (Fig. 1).
Comparison of the spectral data with 5 led to determine readily the structure of 6.
Finally, the cleavage of N-C(17) bond in the N,O-mixed acetal moiety and the reduction of aldehyde group afforded a rearrangement product 8.

With an annual contribution of 5% improvements in this sector could lead to a significant reduction of the carbon footprint.
One of the most interesting and most effective reductions of CO2 emission is achieved by simply replacing a share of the Portland cement by an alternative binder that produces less CO2 during its production process.
Moreover, pozzolanic materials can also be used in terms of CO2 reduction.
The additional data points at 7 and 28 days are for the pastes prepared with superplasticizer.

In the case of C2M0080120D, a sharp increase of the drain current is recorded at the beginning of the short circuit due to the reduction of the channel resistance (Rchannel) with high temperatures [2],[4].
As the short circuit evolves, the drift layer resistance dominates [11], resulting in the reduction of the electron mobility in the channel and, consequently, the reduction of the drain current.
The applied power per unit volume derives from the experimental data.

Quareni[7] suggest that friction coefficient of basal contact will be reduction when the oscillations of flows contains a quasi-rigid plug.
The materials consist of three layers from bottom to top, and the actual measurement data of mechanical parameters are listed in table 2.
In the reduction process, the mechanical parameters of discontinuous interface are reduction as the parameter of material of rock body mentioned above.

Resource conservation and environmental protection, during express highway planning, design, construction, transportation and maintenance management, must always implement the sustainable development concept, on the principle of “Reduction, Resource and Recycling”, adopt new theories, new thoughts, new technologies, new materials and new processes to achieve high efficient use of resources and low pollution to the environment, and to realize high degree of harmony of highway construction, natural environment and social environment.
Compare, select and demonstrate the roadbed height as well as the bridge, channel schemes, and use low embankment scheme whenever possible, in order to reduce earth borrow and filling for roadbed, and to reduce land occupation for highway construction; avoid using the soil with vegetation as roadbed filler, avoid the spoil pile up and land occupation generated by excavation of cutting from leading to vegetation cover reduction, destruction of soil structure and fertility, and soil erosion; for the high filling and deep excavation sections that pass through the basic farmland and economic crops area, on the basis of technical and economic comparison, try to consider setting up retaining wall, slope protection and other protective facilities to shorten the slope length and save land resources.
Based on relevant data, it has significant and comprehensive benefits to process scrap tire into rubber powder and use it in highway construction.
For example, take noise reduction measures such as setting up sound barrier, brick wall and tree planting for the sections with predicted noise level exceeds the noise standards; sewage of the highway service area shall be discharged into the local town sewer network as much as possible or used for afforestation after purification treatment; conduct regular atmospheric monitoring, surface water monitoring and noise monitoring for sensitive locations, and timely adjust and improve the environmental protection measures during the operation phase according to the results of monitoring.

The initial specimen’s length was 240mm and the final length was 72mm (70% nominal reduction).
The experimental data shown in Table 3 reveal also that the toughness in the instability region (Toughnessn.un.) was higher for samples from cycle “A” in T6 metallurgical condition.
Two noticeable differences between these specimens are (a) the higher amount of reduction of area on the first sample (notice the orange double-arrows showing the width of the fracture surface in Fig.s 4a, b) signifying higher and non-uniform deformation and (b) the occurrence of brittle, intergranular, secondary cracks on and far from the fracture surface of sample “B24” (see blue arrows) which are indicative of grain boundary embrittlement.
Orange double-arrows indicate the extent of reduction of area.