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The potential energy of the deformation is (5) where wmax is the maximum displacement due to the deformation of the structure on the basin’s bottom due to the impact load; hv (alias hk) is the height of the basin water (alias the container), A is the section area of the container, r is the density of the water, g is the gravitation acceleration.
Based on the experimental results, the factor of the water resistance was equal to Cz=1.5.
Fig. 5 Position and velocity of container fall in the basin from the experiment [2] The reaction force of the water resistance during the fall of the container is , (7) where Cz is the factor of the water resistance defined by the experiment.
Medřický, Drop of Container Castor 440/84 in Water Tank S1-Cylinder Water Tank, 1996, CVUT Prague, FSV, 40 pp., 1996
Salajka, Some Remarks on the Application of Professional Fem-Based Programs.

China has not yet establish professional ice model test facilities. 
The propeller thrust is to be greater than this channel resistance plus the open water resistance.
Though forced self-propulsion ship model test to get the thrust coming from propeller at 5 knots, estimated ship resistance in open waters and ice resistance in corresponding ice level through the open waters ship model tests at 5 knots.
ROW is the resistance in the open waters at 5 knots.
Model ice is formed from saline water of 0.7% salinity, in the ice making process, ice water in the towing tank is in a super-saturated condition , continuously release the tiny bubbles. 

Jack-up platforms suitable for different soil conditions and the large sea water depth range.
There are 117 constructed and constructing deep-water jack-up platform in the world, among which 69% of deep-water jack-up platform work in the 106.7 ~ 121.6m water depth, and two work in the 137.5 ~ 152.4m depth.
For piling operations in the deep-water poor marine conditions, jack-up platform plays an irreplaceable role.
The underwater rock groups of drilling are adopted by the using of jack-up offshore platforms, and deep-water rock surface is grinded.
Now, multi-function jack-positive offshore platforms are moving to deep water, large-scale, professional, intelligent, dynamic positioning, and multi-functions.

According to the practical professional requirements for each layer, different transfer functions are chosen to transfer information and produce the required output result in the output layer.
It has thus been widely utilized in natural disaster risk assessment and water resources system modeling.
In a study by Gao Xuemin et al, [3] the quality standards of Chinese surface water environments were examined and several evaluation indexes were selected.
The study referred to the assessment index recommended by the water conservancy industry: standard SL450-2009.
[6] HU Jiang SUHuaizhi(College of Water Conservancy and Hydropower Eng.

In our “Green Building Assessing Standard” GBT50378-2006, the green building is defined as “which provides healthy, appropriate and efficient space for humans, it is saving resources (energy, land, water material) at maximum, and buildings in harmonious coexistence with nature within the building’s life cycle.”
Analyzed from the research con-tents, the theories are mainly divided into the below aspects: First, research on one aspect in green building, such as save water, energy, and land, etc.
From the academic level, it emphasizes intersecting among multisubjects, tackling key problems jointly and comprehensively solve problems; from the technical level, it stresses cooperation cross industry, and expand the vision to the integrated application to various ideas and technologies in different professional fields over the whole architectural design.
The design of water supply and drainage should take full advantage of the technologies like water saving, rainwater collecting and reuse of re-cycled water; effluent sewage in the residential area from shower, morning washing, clothes washing, kitchen and washroom could be concentrated dis-posed, and after reaching to certain standard recycle to use during pouring greens, washing vehicles, roads and hosing toilets, thereby the aim of saving water could be reached.
The solar photovoltaic power generation system could be established to reduce the electricity consumption in municipal administrations; adopting hot water, heating and air conditioning sys-tem from solar energy as per project's characteristics; generating power by utilizing wind resources on site; adopting utilization of technology from biomass; utilizing technology of ground source heat pump, which is take the water resources as the cold, hot source of ground source heat pump, the water re-sources can be underground water, rivers &lakes water, reservoir water, seawater, urban reclaimed water, industrial tail water and underground tunnel water.

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.

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.