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Online since: June 2014
Authors: Teng Fei Chang, Chu Yang Tang, Ge Wang, Mei Yu Gu, Ying Dong Jia
An experimental study on co-pyrolysis of biomass and coal was performed in a tubular furnace for comparison of product (tar, water, gas and char) yields and composition.
The water content of liquid product was determined according to GB/T 2288-2008.
Water yield increases dramatically, compared with tar yield.
The increase of water yield could verify the postulate.
[3] James Speight, Synthetic Fuels Handbook: Properties, Process, and Performance(McGraw Hill Professional, New Year2008)
Online since: July 2011
Authors: Guang Li Guo, Jian Feng Zha, Bing Fang Liu, Gang Wang
Mining Deformation Observation And Monitoring, The Discipline of Surface Movement And ‘Mining Under Buildings, Under Subways And Under Water.
The workers can also see the changing situations of the underground pressure, gas and water, which are closely associated with the process of mining on the screen clearly.
To Open Academies of Professional Higher Education For Mining Surveying.
To promote the development of mining surveying, facing the deepening education reform and widening absorbing students, it is necessary for academies of professional higher education to go to mining surveying and to absorb students from mines.
To open academies of professional higher education is one method for German to rise up mining surveying majors.
Online since: April 2014
Authors: Jaroslav Urban, Tomáš Klečka
“A low water/cement ratio is also important; it reduces both the penetration of ions into surface layer of concrete and the water absorption of this layer.”
If water is kept on a steel smoother as on just washed glass, local increased water ratio has destroying effect on the quality of surface layer.
The modification is not relevant as site performance, but according to the opinion of interested professional community the modification with saw stir of steel ruler is representative and does not increase or decrease the result of deicing salt scaling resistance.
RESULTS Set A – water-tightness 25mm, 28 day strength 48,6 MPa with bulk density 2295 kg/m3 Set B - water-tightness 20 mm, 28 day strength 34,9 MPa with bulk density 2190 kg/m3 Set C - water-tightness 17 mm, 28 day strength 36,1 MPa with bulk density 2230 kg/m3.
The detailed analysis of the surface water absorption results indicates that specific value of deicing salt scaling test cannot be estimated from surface water absorption.
Online since: June 2013
Authors: Yue Li, Yu Qian Cui
With the implementation of new rural development policy and development of rural economic in China, water pollution becomes a serious problem in rural areas, which has been the major factor that leads to watershed quality deterioration and ground water pollution.
Through professional organizations to provide operation, maintenance is conducive to ensuring normal operation of the facilities, and facilitates the implementation of supervision.
The system can be operated by the municipal departments, also can be managed by private water cooperatives.
Rural water pollution problems seriously affect the safety of drinking water, which restricted the economic development of rural areas [7].
Liu Junxin made a investigation of the villages and towns in different areas of our country, which in terms of the social economy, water environment, water drainage, sewage disposal, the demand will and constraints.
Online since: November 2025
Authors: Muhammad Alif Hakeem Mohd Sukeri, Wan Muhammad Afif Hilmi Wan Mohd Nor, Chika Umunnawuike, Ismail Mohd Saaid, Augustine Agi Aja, Siti Qurratu Aini Mahat
Water-based Mud (WBM) Preparation.
In contrast, the density of water is 1.00 g/cm³.
Liu, (Ed.), Gulf Professional Publishing, 2021, pp. 163–251. doi: https://doi.org/10.1016/b978-0-12-821956-0.00012-2
Pattillo, (Ed.), Gulf Professional Publishing, 2018, pp. 337–394. doi: https://doi.org/10.1016/b978-0-12-811769-9.00012-8
Fink, (Ed.), Boston: Gulf Professional Publishing, 2015, pp. 1–61. doi: https://doi.org/10.1016/b978-0-12-803734-8.00001-1
Online since: December 2012
Authors: Yan Chun Xia
In the paper, it focuses on the water damage to building application area.
The detection temperature range of water leakage is not specific.
To express professional conclusion on defect severity and certainty by using simple different levels, the following rating and certainty level are defined.
Obvious water drops can be seen.
Detecting water in honeycomb structure by using pulsed phase thermography [J].
Online since: August 2013
Authors: Yang Zhao, Qi Xia Liu, Xin Zou, Kai Qi Wang, Qing Zhao
The phreatic water and perched water in the underground water have the great effects on the underground garage.
In abundant water period, water soares, and the runoff of water is large; while in dry season, water level drops, and the runoff of water is small.
New surface water is without impervious layer.
Visual MODFLOW 4.1 is an easy-to-use professional simulation software with complete function during the practical application of 3D groundwater flow and solute transport simulation which its application function complete and.
Ground Water. 2011, 49(2):144-159
Online since: May 2012
Authors: Mao Tian Luan, Bo Xu, Lin Qing Yang, Zhong Tao Wang
Water jetting was completed throughout the test.
The water jetting involved adding water to the sand body within the centrifuge package.
No net water should leak into the package because the added water drains through the sand and into the standpipe where the water level was held constant using two drainage holes.
Both of PPTs were monitoring the water column in the standpipe, which should remain a constant water level throughout the whole test process as mentioned above.
Blackie Academic and Professional.
Online since: March 2016
Authors: Zhou Fan, Jing Wen Fu, Xiao Gang Hu, Yang Xu Ou
When welding under the water, there are high-pressure gas flowing in the pipeline and water flowing outside, causing a difficult and possibly risky of the welding operation.
Water pressure has a certain compression on arc welding, and the water has a strong cooling effect on the welded joints.
As the professional finite element numerical simulation software in welding field, SYSWELD has advantages that the general characters are very strong, but the specificity is its shortcoming [12-14].
Fig. 5 shows the thermal cycling curve of the nodes investigated in land in-service welding and under-water welding in different water velocities.
a) Inner wall b) Outer wall Fig. 7 Effect of water velocity on the stress distribution of the inner and outer wall Fig. 7 shows the effect of water velocity on the stress distribution of the inner and outer wall.
Online since: July 2013
Authors: Bi Ying Sha, Qing Shan Liu, Jing Jing You, Xiao Dan Ren, Hui Feng, Xiao Ying Yin
Distilled water was prepared with demineralized water.
Samples were diluted in purified water and the measurements were performed at 25°C.
GJJ10553 and GJJ12518),and Science and Technology Support Project,Jiangxi Province China (Grant No. 20111BBG70004-2), 2012 Jiangxi Province the excellent teacher professional development projects.
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