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Experimental robot welding of tank components In the fig.1, a water tank having the diameter Φ450 and the length 500 mm of a water supply is presented.
No leakage of water was detected and this has proven the tightness of the tank.
Professional Engineering Publishing Limited, London and Bury St Edmunds, UK, 2001
[18] Steve Meier (American Water Works Association): Steel Water Storage Tanks: Design, Construction, Maintenance and Repair.
CB&I Constructors): Construction of Welded-Steel Water-Storage Tanks.

The concept of "green building" is given by Green Olympic building assessment system in China as: the maximum energy, water, land and materials saving; minimizing water, gas, liquid and solid wastes in the atmosphere.
Saving water encourage using water-saving equipment, changing patterns of water and water price lever to adjust, reduce water consumption.Saving material refers to adjust and optimize the industrial structure, backward technology and products, improve labor productivity, reduce resource consumption; Development of high strength, high performance materials; Developed light and light aggregate concrete, reduce weight, saving raw materials; Actively developing chemical building materials, energy saving, wood, steel section; In the building with light steel structure system, reduce wood, dosage of cement and gaping adobe, protect the environment.
Green building evaluation index system of the section with the outdoor environment, energy conservation and energy utilization, water saving and water resource utilization, material saving and material resources, and indoor environmental quality and operation management of six indexes.
"Evaluation standard" provisions 5.2.18 according to local climate conditions and natural resources, make full use of solar energy, geothermal energy and other renewable energy, renewable energy to produce hot water not less than 10% of the building hot water consumption, or renewable energy generating capacity of less than 2% of the building power consumption.
[16] The Chinese research association professional committee of green building and energy science city "green humanities committee", in: Green building humanistic philosophy, China building industry Publishers (2010).

Performance index of fly ash Varieties Fineness Water demand ratio Loss on ignition Water content - % % % % Grade I fly ash 9.4 94 2.47 0.2 Table 4.
Performance index of water reducing agent Varieties Density PH value Fluidity of cement paste Water reducing rate - g/mL - mm % JB-ZSC retarding type 1.058 6.0 254 28 Mix design.
(3) Determine unit water quantity Considering the fluidity requirement, appropriate fly ash can be added and the coarse aggregate has good grain size distribution, so the proposed unit water consumption is about 150-155L
At this time, the sand ratio is:42%、43%、44%、45%,45.5% Therefore, the unit uses sand to measure three representative values, namely 705 kg, 729 kg and 790 kg (6) Determine cement dosage The water-cement ratio W / C = 0.28 and the unit water volume is 150kg / m³, so the unit powder consumption is 536kg / m³.
Summary Through this round of tests, under the condition of the same water cement ratio, 42% and 43% of the concrete are already at the peak value set by the sand ratio.

Chlorophyll-a is an important index of water quality for seawater, which can indicate the state of algae reproduction, further more it can predict the disaster of red tide by prediction model.
There are many and many emission pollutants pouring into the sea with nitrogen and phosphorus, and the sea water changes into the state of eutrophication.
In this paper, we use this modeling method to describe the complex mapping relationship between various types of physical-chemical factors and chlorophyll-a in sea water, predict the status of algae reproduction and growth in coast water.
[3] Riyad Manasrah, Mohammed Raheed, Mohammed I.Badran, Relationships between Water Temperature,Nutrients and Dissolved Oxygen in the Northern Gulf of Aqaba, Red Sea[J], Oceanologia, Vol. 48 (2006), p. 237-253 [4] Nong J F, Huang W N, Long-term Prediction Model of BP Neural Networks Based on Principle Component Analysis, Journal of Guangxi Teachers Education University(Natural Science Edition),Vol. 25 (2008), p. 46-51
Research Progress on Red Tide Pre-warning or Predicting Models, Liaoning: Chinese Society of Marine Algae Research and Prevention of Professional Committee of the 2nd Symposium, (2007).

Leak detection and calibration of pipe internal roughness in a water distribution network are significant issue for environment pollution around the world.
Large and complex pipe networks for distribution of water to cities cost many millions of dollars to construct, operate, and maintain.
Particular, leaks from the pipelines can lead to considerable product losses and to the exposure of the road to water.
Ponding at the ground surface and anomalous vegetation growth can be indications of a compromised water main.
After the written of corresponding program source codes, these codes are compiled into object files through the professional compiler provided by TI company, and then connected the object files with some necessary secondary files to generate the binary files which can be executed on DSP processor.

The karst reservoir in submarine trench is 0.3km³of area, about 1.34x107 m³of water storage and more than 1x107m³of the non-water-storage, which is the largest underground reservoir in China and the second largest one in Asia.
The use of underground karst water in submarine trench is the successful model of translating mine water disaster to the human production water in our country. it has the characteristics of low cost, simple engineering, good quality water, buried deep in the mountainside, safe and firm, and high drive pressure.
It is the first fully closed large-scale water reservoir in Chongqing.
More than 21000mu farmland can be irrigated by the underground karst cave phreatic water with an area about 62.85km² underground water resources, and the geological resources can be used sustainably.
Because of limited to the strong professional characters, theme kind of park is hard to avoid the tourists to come into being boredom.

Table 1: Trial mix compositions Sample ID Perlite:cement Water:cement SBR latex polymer Acrylic polymer Control CL 3:1 0.69 0 0 P1NL* 3:1 0.69 10 l per 50 kg cement 0 P1NR 3:1 0.62 10 l per 50 kg cement 0 P2NL 3:1 0.69 0 1:2 Acrylic:water P2NR 3:1 0.62 0 1:2 Acrylic:water * P1 = Polymer 1 (SBR Latex); P2 = Polymer 2 (Acrylic); N = Normal dosage; L = Low water:cement ratio; R = Reduced water:cement ratio Testing program.
This is significant but we need to keep in mind that this is also a result from the change in water:cement ratio from 0.69 to 0.62.
Mix P1NL having similar water:cement ratio as that of the control mix had an increase of more than 300% in its 7-day compressive strength.
The canoe was successfully tested in the water with one occupant and performed well; the concrete structure absorbed no water and suffered no ill effects from the harsh environment it was subjected to.
Blackie Academic & Professional.

Without plenty of water and evaporation, it is difficult to ensure the normal growth of green plants.
References [1] Wang Yu:Eco-road Exploration and Practice References,2007(In Chinese) [2]Lu Jianguo,Zheng Guodong,Zhang Guo: The median of the highway mode of investigation and analysis of plant configuration of Henan Province，Anhui Agricultural Sciences, Vol.,35-36(2007),P.11912—11913(In Chinese) [3] Su Bingyi, Liaoyan Yang,Wen Ping: Guangxi highway design of the median landscaping, Environmental Front, Vol.9, (2009) ,P .149-151(In Chinese) [4] Lvying Xia, Zhaohui En U.S. roads comparative study of the median of planting pattern in 2007, China Institute of Horticulture Ornamental Horticulture Professional Committee annual meeting.

Using consumption means the operation energy consumption of the systems and equipments inside the buildings, including heating, air-conditioning, lighting, household appliances, office equipment, hot water supply, cooking, elevator and ventilation energy consumption.
Second, EMC enables the large-scale public building energy-saving work through operating by itself into professional management.

This test uses the model of soil solution and powder fine sand of Handan as undisturbed soil, and water control 10% of the moisture content of soil preparation model.
Seismic wave energy transfer law Power spectrum in this article by professional data acquisition and signal processing software DASP speed-time curve through the data generated, as shown in Figure 5, Figure 6, shown in Figure 7, 5Hz sine-0.2g for the measured points in the pile of power spectrum.