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Polyether can modify the water-soluble of copolymers.
Water (50 mL) was then added and the solvent was removed under vacuum.
To the residue was added CH2Cl2 (100 mL) and the organic layer was separated, another CH2Cl2 (100 mL) extract water phase twice, Combined CH2Cl2 phase and dried over anhydrous Na2SO4, and the volume was reduced to approximately 20 mL.
Gel permeation chromatography (GPC) measurements were conducted with a Waters 515 GPC with tetrahydrofuran (THF) as eluent (flow rate: 1ml/min, at 40˚C).
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (31160198), the Applied Basic Research Project of Yunnan (2011FB084), High-End Technology Professionals Introduction Plan in Yunnan province (2010CI119), the Natural Science Foundation of Yunnan (2010FXW004) and the party member project of Yunnan University of Nationalities (2011HXDZB03).

Through analyzing the causes and damage of the fouling in water channel of water cooling engine, this paper develops a new kind of compound cleaning and descaling agent and conducting polyaniline corrosion agent of the water tank.
INTRODUCTION Dirty and fouling exist commonly in water channel of water cooling engine system, and their damage is very serious.
Additionally, the commonly existing fouling in water channel will erode base of engine and part of water radiator, especially in coastland.
The defects existing in current cleaning and descaling method are as follous: First, cleaning and descaling agent produces more corrosion to engine; Second, cleaning agent takes long time to descale (10hours), and the descaling effect is bad; Third, cleaning and descaling need professional and technical personnel's operation, moreover the craft is quite complicated.
Adding conducting polyaniline, the water tank antirusting agent will raise the corrosion resistant of engine's water cooling system by 2 to 5 times.

The Water Conservancy Water Electricity Construction Engineering Professional Result Analysis of Application Base on C4.5 Algorithm Hu Yong Information engineering department, Chongqing College of Water Resources and Electric Engineering, Chongqing, P.R.China ieis2014@163.com Keywords: Data mining, C4.5 algorithm, Decision tree Abstract.
We make an example of grade data which is from a certain college the water conservancy and electricity construction engineering profession.

The experiment consists of partial and total immersion of the samples in water in order to measure capillarity action in the wood after 12, 24, 36, and 72 hours of partial immersion in water, and water content after the full submersion in water.
Experiment and initial findings A plastic water container was filled with 3cm of water and then the samples were partially immersed in water.
Water absorption of the samples (Water intake) according to Formula (1).
Water intake according to Formula (1).
Professionals have to be conscious of the nature of such kinds of wood before using them for various purposes.

Since reform and opening, water conservancy and hydropower construction industry become more competitive.
Features of Water Conservancy and Hydropower Project Construction Management Water conservancy and hydropower project construction management system composition is very complex, changeable factors.
The task involved in the construction of professional technicians and workers, a comprehensive understanding of the engineering tasks undertaken characteristics, technical requirements, construction technology, be aware of.
Water Technology has made new progress in our correlation analysis [J].
Engineering and Technology [3] Jiang Taihui; under the new situation of rural water conservancy project management of new ideas [J]; intellect; 2011 02 [4] Shi Yanmei; Lu Qin-Hua; Lee with war; Reflections on Strengthening Water Management [J]; Modern Agriculture; 2010 04 [5] Zhang Tao are; actively promote water conservancy project management modernization [J]; Chinese high-tech enterprises; 2010 36

This essay mainly discusses the cognition and attitude of community residents towards renewable energy in Taiwan, analyzes people’s different cognition and attitude, elaborates the correlation between cognition and attitude towards renewable energy and in the end offer some suggestions to the related professionals and researchers.
Besides, continuing to develop technology research, it also consists of many rewarding measures to encourage the civil application of renewable energy, like wind power generation, bio-power (such as industrial waste and city waste), solar electricity, usual hydropower, solar water heating system, geothermal power generation and fuel cell.

The water-lime ratio is in the range of 30 to 60%, depending on the required workability.
In contrast, type 2 was a single-component professional repair mortar manufactured by CVR.
More precisely, the capacity of IT arches (strengthened with GFRP grid mesh placed into the mortar bed joints) was increased by 446% from 0.15 to 0.81 kN for arch DR.IT.01, built with a weak mortar (Type 1), and by 124% from 1.57 to 3.52 kN for arch DR.IT.02, built with a single-component professional repair mortar (Type 2).
In all the specimens, failure was dictated by the arch displacement mechanism (Fig. 6), with an ultimate load capacity equal to 1.07 kN for arch TR.UT.01, built with a weak mortar (Type 1), and 6.83 kN and 4.10 kN for arches TR.UT.02 and TR.UT.03 (built with a single-component professional repair mortar, Type 2), respectively.
The capacity of the IT arches was increased by 153% from 1.07 to 2.71 kN for arch TR.IT.01, built with a weak mortar (Type 1), and by 54% and 137% for arches TR.IT.02 and TR.IT.03, built with a single-component professional repair mortar (Type 2).

New type of hydraulic classifier classification chamber adopted deep cone structure.In the conical graded indoor, the rising water flow velocity gradually reduces from the bottom up, the coarse particles gradually sedimented the gradual rise water, became the underflow.
New type of hydraulic classifier used two two phase of water supplying.
It setted the second supplying water under the first supplying water, made the underflow to grade again, the fine particles in the underflow hade a second chance to rise, reduced the mismatch content, improved the efficiency of classification.
The classification test was conducted with the coarse slime from Yanma coal preparation plant in Jiaozuo, setting two modes (A not open the second supplying water, B open the second supplying water ) for hierarchical effect comparison.
Acknowledgements This work was financially supported by the Mineral Processing Engineering, National Professional Characteristics(TS12245), and Henan Polytechnic University crosswise tasks(H12-468).

In the engineering field, the alternative reinforcement of natural fibers has raised high interest by professionals, researchers and scientists due to the superior properties such as high specific strength, low cost, low weight and good mechanical properties [1].
Next, the mixture was immersed in the disposal cup into a beaker of warm water at 60℃ for 5 minutes.
For instance, the water absorption has reduced from 17% to 12% after exposure to plain water for six weeks for the composites with nanosilica.
"Effect of water absorption on the mechanical and dielectric properties of nano-alumina filled epoxy nanocomposites.”
"Effect of water absorption on dimensional stability and impact energy of jute fibre reinforced polypropylene

The most important conditions affecting the water environment capacity are Water quality standards, hydrological conditions and the sewage load distribution.
The different management water environment capacity depends on the different Water quality standards, different target water and different hydrological conditions and.
Furthermore, the application of the appropriate professional software based on the simplex method, the linear programming problem can be easily solved.
The set of water quality control point Environmental capacity calculation results and the set of water quality control point; they have a great relationship with the number of control points, position and water quality standards which used.
Water Res.