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Suspended sediment concentration is important index of water quality, and assessment coefficient of water environment.
Landsat-5 satellite is just above Yangtze Delta region and get an image in April 28 10:10 am, and 21 vessels was distributed in the estuary to gather 2L water samples 50cm below the water surface, and small-scale meteorological instrument, thermometer instrument and GPS locator record are used to record the temperature, water temperature, wind speed, wind direction, latitude and longitude of sampling points.
It is an advanced tools dealing with panchromatic data, multispectral data, hyperspectral and radar data, which provide a graphical interface to the users and satisfy the needs of professional users.
The image of water in study area is obtained and atmosphere correction is finished by 6S model[6].
Meanwhile, sediment concentration in deep water sea-route is respectively lower

After data collection，the system software WinRiver have the playback function , flow rate, area, river width, average velocity of flow, average depth of cross section, the maximum velocity of cross section, maximum water depth, etc all can be obtained directly from the playback software , And the equivalent velocity figure along the track can be directly get.
But if we want to get the whole area of the flow distribution and the Contour map of underwater topography, rely solely on system software is unable to realize, should to use professional drawing software.
The rapid data extraction technology of ADCP In order to extract ADCP survey data quickly, we have developed a data extraction model of ADCP, named read_winriver，its main function is to extract data from the original data files with each layer depth of latitude, longitude, water depth, velocity value.
The conversed data files including longitude, latitude, water depth, velocity value, can be applied to draw the flow distribution and the Contour map of underwater topography directly.
Today, it is widely applied in meteorology, environment, geography, water conservancy and other disciplines.

Introduction Cyanate ester resins (CEs) attract much attention these days owing to their excellent properties, such as good mechanical properties, low water absorption, low outgassing and excellent dielectric properties [1].
The flexural strength is 170MPa and the modulus is 3.2GPa, with the water absorption being about 2%.
The cured specimens were removed from the mold and cut with a water coolant to required sizes: 35mm×10mm×2mm (type III).
Hamerton: Chemistry and Technology of Cyanate Ester Resins (Blackie Academic & Professional, Glasgow, London, 1994)

Determination of pentachloronitrobenzene in Panax ginseng by HPLC Li Xia1, a LV Ping1,b Wang Yanguo1,c,* 1Department of Biotechnological and Environmental Engineering, Tianjin Professional College, Tianjin 300410, China a 13132120092@163.com , bbestman_0429@163.com, cyangguo_wang@163.com, * Corresponding author Keywords: HPLC, Panax ginseng, pentachloronitrobenzene.
It is also used to prevent the formation of slime in industrial waters.
(Shanghai, China) and distilled water, prepared from deionized water, was used throughout the study. 2 Sample preparation The whole herb of Panax ginseng was dried at room temperature, and then ground into fine powder (0.3 g) by a pulverizer, which was extracted with 10 ml 50% methanol (v/v) for 30 min in an ultrasonic bath at 25°C.

The formula is as follows[4], LCC= Initialization cost + Running cost + Maintenance cost +Fixed cost + Energy cost + Water cost + Substitution cost– Residual value The mathematical model compartmentalized the LCC into initialization cost, running cost, fixed cost and residual value.
With the erosion of rivers, these three rivers become wider and water flux is also growing accordingly.
P, in: Life Cycle Costing Theory and Practice, edited by Oxford: BSP Professional Books, 1989, p. 31
[5] Guoqiang Ren, YIlin yin, The Feasibility Study on Life Cycle Cost Management in Terms of Paradigm Transformation, China Soft Since, 2003(5), p.148-151. in Chinese [6] Xiaofeng Zhao, Guoqiang Ren, Yilin Yin, Shibo Dong, Analysis on the model of uniform calculation of engineering cost, Water Resources and Hydropower Engineering, 2004(11), p.70-72. in Chinese [7] Medley, Larry G, The Life-Cycle Perspective: Managing Cost Before It Occurs.

Lawn maintenance of golf course are very strict, even after the rainstorm, all stagnant water must all drain in 5 minutes.
Resources and environment problems of golf in China 2.1 Eexcessive consumption of water resources Water is the lifeblood of the golf course, golf course because of large area, The impact of the huge amount of water for irrigation required has always been widespread concern in society.
If the average value calculated daily 2600 tons, China more than 600 golf courses daily water consumption of 1560000 tons, annual water consumption of more than 560 million tons.
China 's per capita water resources are poor countries, especially in North China's freshwater resources shortage.
System file. 4.2 Improve awareness of managers on protecting environment Golf course superintendents should be responsible to society and the attitude of future generations, with professional attitude and scientific management system to solve ecological environment problem in development and management process.

., Beijing 100083,China alxm7010@126.com, bzhouqimou@163.com Keywords:mine water disaster;coal seam floor;electric pre-warning Abstract.
Currently,the coal which are threatened by the karst water in the north main mining area reserves with 15 billion ton.
Detecting exactly the watery of the working face floor and Liberating these coal from the confined water is significant to realize the safe and efficient production of the coal mines.
Faced with these problems,combining with the potential hazards of mine water disaster in China,it is especially important and urgent that building the Ordovician limestone water disaster monitoring and pre-warning system in the prevention and treatment of the coal mine water disaster threatened by the karst water.Combining with the requirements of the prevention and control of the water disaster from the coal floor at the coal mine field work in our country,we need to develop a real-time,fast,be able to analyze the detected data immediately and professional " visualized electric pre-warning system in the working face floor" to realize the prediction of the tunnel floor’s structure and the watery.
Figure 3 The structure chart of the underground software Figure 4 The structure chart of the ground software Applications of the system Mining the No.3 coal seam of Shanxi Coal Group Zhaozhuang coal mine 5303 working face,the largest potential threat of the safety mining is the Ordovician limestone karst fissure water of the coal seam floor.According to the statistics of drilling data available of the NO.3 coal seam and the Ordovician limestone water level,the No.3 coal seam belongs to the mining under pressure of the confined water.Based on the current exploration,3D seismic and drilling data,we can know that the collapse column inside the well,the development of faults and the thickness of the water-resisting layer are not uniform,the Ordovician limestone water exists very likely in the thinner region of the water-resisting layer,through the geological abnormity swarms into the mine,once the Ordovician limestone water inrush happens,it will cause disasters for the

Therefore, it can be soluble both in water and an organic solvent.
IFT between two fluids like oil and water is measured to observe interfacial phenomenon [5].
In increasing the surfactant concentration, the surfactant molecules are adsorbed more onto the oil/water interface constantly with the hydrophilic in the water phase and lipophilic in the oil phase.
Above this concentration, the adsorption on the oil/water interface reached saturation so IFT remained stable.
Sheng, in: Modern Chemical Enhanced Oil Recovery: theory and practice, Gulf Professional Publishing (2011)

In view of the rapid development of electronic control technologies for automobile engine, in the teaching course of automobile specialty in vocational colleges, the electronic control technology of automobile engine has become the core curriculum of automobile specialty in higher vocational and professional colleges.
Therefore, there is an urgent need for the automobile specialty in higher vocational and professional colleges at present to develop some low-cost, pollution-free, easy-to-use and safe teaching equipment adapting to automobile development in line with modern concepts of vocational education, thus to meet the need of practice teaching[4].
As shown in Figure 1, this experiment bench is composed of sliding rheostat 1, storage battery 2, DC motor 3, ignition switch 4, normally opened relay 5, ignition control component 6, camshaft position sensor 7, water temperature sensor 8, intake temperature sensor 9, throttle valve control component 10, 1 (2) cylinder knock sensor 11, knock sensor signal shielded wire 12, 3 (4) cylinder knock sensor 13, crankshaft position sensor signal shielded wire 14, crankshaft position sensor 15, 1 cylinder injector indicator light 16, 2 cylinder injector indicator light 17, 3 cylinder injector indicator light 18, 4 cylinder injector indicator light 19, air flow sensor 20, charcoal canister electromagnetic valve indicator light 21, oxygen sensor 22, fuel pump work indicator light 23, reader coil 24, anti-theft indicator light 25, fuel pump relay 26, 1 cylinder spark plug 27, 4 cylinder spark plug 28, 2 cylinder spark plug 29, 3 cylinder spark plug 30, measuring terminal 31, axial flow fan 32, engine
control component; 7-camshaft position sensor; 8-water temperature sensor; 9- intake temperature sensor; 10- throttle control component; 11-1 (2) cylinder knock sensor; 12- knock sensor signal shielded wire; 13- 3 (4) cylinder knock sensor; 14-crankshaft position sensor signal shielded wire; 15-crankshaft position sensor; 16-1 cylinder injector indicator light; 17-2 cylinder injector indicator light; 18-3 cylinder injector indicator light; 19-4 cylinder injector indicator light; 20-air flow sensor; 21-charcoal canister electromagnetic valve indicator light; 22-oxygen sensor; 23-fuel pump indicator light; 24- reader coil; 25-anti-theft indicator light; 26-fuel pump relay; 27-1 cylinder spark plug; 28-4 cylinder spark plug; 29-2 cylinder spark plug; 30-3 cylinder spark plug; 31-measuring terminal; 32-axial flow fan Fig.1.
If an illegal key is used, or there is failure in the anti-theft system, the alarm indicator light will flash continuously after turning on the ignition switch. 2.2 Working process of the experiment bench When the ignition switch 4 is closed, the switch contact of the normally opened relay 5 is closed, and the DC motor 3 and the axial flow fan 32 turn according to the position of the throttle pedal with a certain speed, while the crankshaft position sensor 15 provides the engine ECU with speed signal and crankshaft position signal, and the camshaft position sensor 7 provides the engine ECU with camshaft position signal[7]; the axial flow fan 32 provides the air flow sensor 20 with air flow, the air flow sensor 20 changes the intake flow signal to an electric signal, which is conveyed to the engine ECU ; the water temperature sensor 8 and the intake temperature sensor 9 according to the adapted resistance provide water temperature signal and intake air temperature signal to the engine

Classification and the shortcomings of the existing fire protection products Fire products can be divided into two categories: one is the large-scale professional fire equipment, including large-scale professional fire truck, foam fire truck, fire-gun truck, fire aircraft and helicopter, fire boat etc. these equipment requires specialized operation, and can only be equipped in special place with scarce amount.
For water type extinguisher (with anti-freezing agent), it should be: +5℃, 0℃, -5℃, -10℃, -15℃, -20℃, -25℃, -30℃ or blow 3.2 Regulations of the corrosion resistance in foreign and domestic fire extinguisher standards It has been shown in table 2, U.S. military standards are too harsh in terms of the requirements in the test, which made the cost too high.
Comparison of aspects related to corrosion resistance in different standards Aspects in comparison National standards of China U.S. military standard European standard corrosion resistance The salt solution is to consist of 50(±1 g)/L of common salt and distilled water.
After this, the extinguisher should be washed in warm water and do the corresponding check.
The salt solution is to consist of 20% (by mass) of common salt and distilled water.