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Online since: March 2015
Authors: Li Yuan Yang, Jie Zhong Wang, Bing Hua Wang, Yun Qian Wang
With the rapid economic growth of lake basin, people chased the abundance of material life crazily, and large quantity of “three wastes” (waste gas, waste water and waste residues) were discharged into the air, water and soil, etc, which posed a great threat to the heath of lake basin.
According to the test results from professional testing laboratory, the content of several common heavy metals in the sediment core were much higher than background value.
According to the test results from professional testing laboratory, the content of several common heavy metals in the sediment core were much higher than background value.
Online since: July 2014
Authors: Fei Meng, Ming Yang Yu, Tong Guang Shi
Table 1The structure of table MediaInfo
Field name
Type
remarks
ID
Int(4)
key
Layer name
Char(40)
Object number
Int(4)
File name
Char(1024)
File format
Char(10)
date
Datatime(8)
Content
Image(16)
(2) AnlyBaseSet ---class range setting in analysis
Table 2 The structure of table AnlyBaseSet
Field name
Type
remarks
layername
Char(20)
basefield
Char(20)
anlyfield
Char(20)
colorfield
Char(20)
Conclusion
As the application of GIS technology in the ecological environment, Shandong geographical information system emphasize two aspects which includes taking the advantage of GIS technology to manage the ecological environment data efficiently and combining the GIS technology with professional application model.From the function of the system, we can see the data acquisition and input module can input the data which has different sources, different scales and different kinds with standard format in the system's database (GIS database).The system has overcome the shortcomings of
[3]The embedded Internet access technology and GIS to realize the remote water environment monitoring and water quality information management.
[3]The embedded Internet access technology and GIS to realize the remote water environment monitoring and water quality information management.
Online since: May 2012
Authors: Jie Liu, Hai Bo Jiang, Ping Yang
Nevertheless the negative friction of sandy foundation is insufficient to balance against the lift, thus gravity-based foundation and tremendous concrete construction must be constructed, which increases the workload and construction difficulty.
3) High cost of corrosion protection
As the coral reefs of South China Sea is typical high temperature, high humidity, high salt fog area, the critical factor for maintenance of facilities is against water and salt corrosion.
Compared with the high cost of power storage, storage of water and cool is technically available and sufficiently economical.
It is difficulty to provide long-term professional maintenance stuff.
Compared with the high cost of power storage, storage of water and cool is technically available and sufficiently economical.
It is difficulty to provide long-term professional maintenance stuff.
Online since: December 2013
Authors: Bao Guo Yao, Shui Yuan Hong
Although there are standard methods such as AATCC195-2009 [9] and maturely applied instrument MMT [10], which can be employed to measure the fabric moisture management properties including water absorbency, water repellency and overall moisture management properties, the measurement system reported in this paper focuses on the characterizing method of liquid moisture transfer difference between two surfaces of textile fabrics, which is the most important parameter to reflect the dynamic liquid moisture transfer properties and comfort sensations of textile materials.
There is a fine water pipe fixed through the central sensor of the upper measuring head, which can supply a predefined amount of test solution (synthetic sweat) with the water storage box and control system during testing.
By testing the resistance changes between the measuring rings of sensors, which will reduce when the fabric is wet or contains a quantity of moisture, the changes of water and liquid moisture content on the fabric upper and lower surfaces (UU and UL) can be measured.
Fixing cap Spring Connecting rod Sensor head Cylindrical shell Lower measuring head Upper measuring head Fabric Moisture sensor Moisture sensor Spring ring Water pipe (a) Sensors arrangement in measuring heads (b) Sensor structure Fig. 2 Sketch of sensors in measuring heads During testing, a predefined amount of test solution is introduced onto the center of the upper side of the fabric through a fine water pipe from the water storage box.
The mean values of the liquid moisture transfer properties measurements Fabric WRU (mm) WRL (mm) WSU (mm/s) WSL (mm/s) DMT (%) 1 17 20 0.836 0.8016 -48.0332 2 12 12 0.5646 0.5737 -271.8608 3 15 20 0.4271 0.9143 359.5741 4 22 13 0.6197 0.6653 -273.1278 5 20 20 0.6695 0.6527 -78.754 6 10 0 0.8599 0 -436.4399 The professional statistical software SPSS was used to identify the significance of the differences of the evaluation indices of all the tested fabrics by a one-way ANOVA analysis.
There is a fine water pipe fixed through the central sensor of the upper measuring head, which can supply a predefined amount of test solution (synthetic sweat) with the water storage box and control system during testing.
By testing the resistance changes between the measuring rings of sensors, which will reduce when the fabric is wet or contains a quantity of moisture, the changes of water and liquid moisture content on the fabric upper and lower surfaces (UU and UL) can be measured.
Fixing cap Spring Connecting rod Sensor head Cylindrical shell Lower measuring head Upper measuring head Fabric Moisture sensor Moisture sensor Spring ring Water pipe (a) Sensors arrangement in measuring heads (b) Sensor structure Fig. 2 Sketch of sensors in measuring heads During testing, a predefined amount of test solution is introduced onto the center of the upper side of the fabric through a fine water pipe from the water storage box.
The mean values of the liquid moisture transfer properties measurements Fabric WRU (mm) WRL (mm) WSU (mm/s) WSL (mm/s) DMT (%) 1 17 20 0.836 0.8016 -48.0332 2 12 12 0.5646 0.5737 -271.8608 3 15 20 0.4271 0.9143 359.5741 4 22 13 0.6197 0.6653 -273.1278 5 20 20 0.6695 0.6527 -78.754 6 10 0 0.8599 0 -436.4399 The professional statistical software SPSS was used to identify the significance of the differences of the evaluation indices of all the tested fabrics by a one-way ANOVA analysis.
Online since: January 2014
Authors: De Liang Zhu, Heng Gan Li
In addition, the surface water in the landslide was removed.
The other supporting emergency response operations involved covering the cracks with rammed earth and initiating the emergency response investigation and professional monitoring assignments.
The drainage ditch prevented surface water from the higher terrain surrounding the landslide from flowing into the landslide body.
To accommodate emergency response construction operations, professional monitoring and early warning systems for landslides were provided and 18 specialized monitoring points were installed.
China Water & Power Press, Beijing (2010).
The other supporting emergency response operations involved covering the cracks with rammed earth and initiating the emergency response investigation and professional monitoring assignments.
The drainage ditch prevented surface water from the higher terrain surrounding the landslide from flowing into the landslide body.
To accommodate emergency response construction operations, professional monitoring and early warning systems for landslides were provided and 18 specialized monitoring points were installed.
China Water & Power Press, Beijing (2010).
Online since: July 2011
Authors: Bin Zhao, Jun Hao Li, Jing Quan Shen, Guo Zhong Wang
water–wall.Water-wall tubes wear is one of the most serious problems of CFB boiler.
If [H] can’t be taken away by cycling water and steam, it would cause water-wall tubes hydrogen corrosion.
As a result, on the water-wall weld position, the upper and lower water-wall were not on one line, when installation forcibly welded fins due to the water-wall inherent stress combined with wear caused divulge.
On 7 December, 2010, the water-wall between #1boiler furnace let out two flue ducts tube-bursts, as the installation fin for water wall were irregular flat irons, which will result in water-wall fins bulge.
Conclusions Failure of the boiler heat tube is a multidisciplinary, many professional compound and multi-disciplinary engineering problem.
If [H] can’t be taken away by cycling water and steam, it would cause water-wall tubes hydrogen corrosion.
As a result, on the water-wall weld position, the upper and lower water-wall were not on one line, when installation forcibly welded fins due to the water-wall inherent stress combined with wear caused divulge.
On 7 December, 2010, the water-wall between #1boiler furnace let out two flue ducts tube-bursts, as the installation fin for water wall were irregular flat irons, which will result in water-wall fins bulge.
Conclusions Failure of the boiler heat tube is a multidisciplinary, many professional compound and multi-disciplinary engineering problem.
Online since: May 2011
Authors: Yu Wang, Pan Han, Jie Yang, Ya Li Liu, Run Ping Han
College of Henan Architectural Professional Technology, Zhengzhou 450007, China
aemail: yinghuawangyu@sohu.com, bemail: xhanpanx@163.com, cemail: yangjie6532@163.com,
demail: yali1986_2006@126.com, eemail: rphan67@zzu.edu.cn
Keywords: Zeolite, Methylene blue, Adsorption, Microwave irradiation
Abstract: Microwave heating was efficient and the regeneration time was shortened compared to conventional thermal heating.
All working solutions were prepared by diluting the stock solution with distilled water to the desired concentration.
A series of such conical flasks was then shaken at a constant speed of 100 rpm in a shaking water bath with temperatures 298 K.
All working solutions were prepared by diluting the stock solution with distilled water to the desired concentration.
A series of such conical flasks was then shaken at a constant speed of 100 rpm in a shaking water bath with temperatures 298 K.
Online since: October 2011
Authors: Jing Sheng Qiao, Wei Hua Ma, Qing Juan Meng
For years, dynamic compaction method was widely used in construction, water conservancy, transportation, ports and petrochemical engineering foundation reinforcement.
Table 1 Soil physical mechanics index densityγ [g/cm3] Water content ω % Internal friction Angle Φ [º] Cohesion C [kPa] Compression coefficient α1-2 void ratio e0 Compression modulus ES1-2 [MPa] 1.5 4.4 29.44 3.09 0.15 0.65 6.7 Similar ratio and ramming energy The geometry similarity ratio is 1:25, four kinds ramming energy were used(Rammer weighs 30 kg, fall distance respectively was 2m, 1 m, 0.5 m, 0.2 m, and the ramming energy Respectively is 9375, 4687.5, 2343.75, 1000).
Building vibration engineering manuals[M].Beijing: China engineering construction standardization association construction vibration professional committee,2002:784
Table 1 Soil physical mechanics index densityγ [g/cm3] Water content ω % Internal friction Angle Φ [º] Cohesion C [kPa] Compression coefficient α1-2 void ratio e0 Compression modulus ES1-2 [MPa] 1.5 4.4 29.44 3.09 0.15 0.65 6.7 Similar ratio and ramming energy The geometry similarity ratio is 1:25, four kinds ramming energy were used(Rammer weighs 30 kg, fall distance respectively was 2m, 1 m, 0.5 m, 0.2 m, and the ramming energy Respectively is 9375, 4687.5, 2343.75, 1000).
Building vibration engineering manuals[M].Beijing: China engineering construction standardization association construction vibration professional committee,2002:784
Online since: June 2014
Authors: Qing Bin Cui, Hong Fei Luo, Jie Lei, Jian Cheng Wang
This process belongs to category of high-speed crash, it need professional high-speed crash analysis software to analysis, now we use explicit dynamics to analysis this process.
ANSYS/LS-DYNA Kinetic methods of analysis[M], China Water Conservancy and Hydropower Press, 2005 [2] Pu Guang-yi.
ANSYS Workbench 12 Tutorial and Examples of Foundation [M],China Water Conservancy and Hydropower Press, 2010 [3] Ge Teng, Jia Zhi-hong, Zhou Ke-dong.
ANSYS/LS-DYNA Kinetic methods of analysis[M], China Water Conservancy and Hydropower Press, 2005 [2] Pu Guang-yi.
ANSYS Workbench 12 Tutorial and Examples of Foundation [M],China Water Conservancy and Hydropower Press, 2010 [3] Ge Teng, Jia Zhi-hong, Zhou Ke-dong.
Online since: February 2013
Authors: Zeng Feng Yan, Zhi Wei Wang, Zhan Wei Wang
By the investigation of the performances of heat transfer between refrigerant and water in condenser/evaporator and flow resistance in water side, whether the non energy saving operating faults in water side or not can be identified.
In summer, the reclaimed water is taken as cooling water flowing through condenser, while the user side water is the chiller water for building cooling flowing through evaporator.
The rating flow rate of chilled water pump is 47 m3/h, the testing flow rate of cooling water pump on ultrasonic flow rate meter is 36 m3/h.
The flow mode of cooling water(reclaimed water) belongs to internal flow inside tube, while the flow mode of chilled water belongs to external flow outside tube.
For plant 2, the fouling of the condenser and cooling tower should be entirely removed, and all kinds of function parameters of the compressor should be carefully checked and the motive parts of the compressor should also deeply maintained by professional staff.
In summer, the reclaimed water is taken as cooling water flowing through condenser, while the user side water is the chiller water for building cooling flowing through evaporator.
The rating flow rate of chilled water pump is 47 m3/h, the testing flow rate of cooling water pump on ultrasonic flow rate meter is 36 m3/h.
The flow mode of cooling water(reclaimed water) belongs to internal flow inside tube, while the flow mode of chilled water belongs to external flow outside tube.
For plant 2, the fouling of the condenser and cooling tower should be entirely removed, and all kinds of function parameters of the compressor should be carefully checked and the motive parts of the compressor should also deeply maintained by professional staff.