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Online since: January 2012
Authors: Sheng Hua Qin
Project have impact on atmosphere, land and water impact.
Environmental pollution in construction projects include water pollution, air pollution, noise pollution, construction of solid waste pollution, radioactive pollution, soil tillage layer of pollution and other categories.
The law on public access to environmental impact assessment documents the absence of a public lack the necessary expertise to consider, but with the rise of professional organizations, environmental NGO, and public interest and directly related to environmental impact, in order to protect the public's right to know, In order to protect the public's right to information, environmental impact assessment should take full account of public views.
Environmental pollution in construction projects include water pollution, air pollution, noise pollution, construction of solid waste pollution, radioactive pollution, soil tillage layer of pollution and other categories.
The law on public access to environmental impact assessment documents the absence of a public lack the necessary expertise to consider, but with the rise of professional organizations, environmental NGO, and public interest and directly related to environmental impact, in order to protect the public's right to know, In order to protect the public's right to information, environmental impact assessment should take full account of public views.
Online since: June 2014
Authors: Ke Sheng, Jia Yuan Yang, Yu Mo Woo, Yu Hui Tang
Fig.1 Schematic of wind farms
Modeling calculation
METEODYN WT is a professional wind-energy resources analyzing software which is based on the Computational Fluid Dynamics (CFD).
In case of landslide, water outflow and some other accidents in the construction , the met-mast should avoid the area with questionable geographical factors, such as loose ground and high water table.
In case of landslide, water outflow and some other accidents in the construction , the met-mast should avoid the area with questionable geographical factors, such as loose ground and high water table.
Online since: December 2012
Authors: Hong Yan Cao, Qi Long Liang
To give priority to public transportation, we should enlarge the service groups by providing special and professional service.
Based on the analysis of current volume and direction of the travelers and the features of the ancient zone of Jinan, Jinan Public Traffic Company created Travel 777 – a traveling route to show the unique outlook of Spring City, which is the only public traffic route that surrounds waters in Shandong Province.
Although Travel 777 travels over land, it connects most of the water sceneries, thus the passengers can have a multi-aspect and multi-angle experience of the charm of Spring City.
Based on the analysis of current volume and direction of the travelers and the features of the ancient zone of Jinan, Jinan Public Traffic Company created Travel 777 – a traveling route to show the unique outlook of Spring City, which is the only public traffic route that surrounds waters in Shandong Province.
Although Travel 777 travels over land, it connects most of the water sceneries, thus the passengers can have a multi-aspect and multi-angle experience of the charm of Spring City.
Online since: May 2012
Authors: Ming Chin Yeh, J. D. Lin, Po Hsun Sung, R. H. Shiu
PACs are designed for high air void contents in order to enhance the ability of the layer to remove water from the pavement surface.
“closed” not accessible to water under atmospheric pressure - - full closed - - 1.
The CT number represented the attenuation coefficient of certain object relative to water, and the equation is showed in Eq. 5.
An object with the density lower than water could have a negative CT number.
Mechanics of Asphalt: Microstructure and Micromechanics: McGraw-Hill Professional
“closed” not accessible to water under atmospheric pressure - - full closed - - 1.
The CT number represented the attenuation coefficient of certain object relative to water, and the equation is showed in Eq. 5.
An object with the density lower than water could have a negative CT number.
Mechanics of Asphalt: Microstructure and Micromechanics: McGraw-Hill Professional
Online since: December 2014
Authors: Su Wei, Cao Yong, Fu Jie, Wen Wu Song
The complicated process of water flow within the pelton turbines, pressure loss, secondary flows, sheet flow, free surface flow, water splashes and instability, adds difficulties of research.
Ejected from nozzle mouth, the water flow forms a velocity discontinuity with air around it which generates the formation of swirl.
With the help of professional mesh generation software ICEM CFD, an unstructured tetrahedral mesh is generated, with the total mesh number of 915000.
By COUPLED method, selected coupled calculation can be done to investigate the sediment and water movement, and all the calculations led to the property of sediment movement in the water flow area.
In this paper, we set a constant value for jet flow diameter,, assuming jet flow only watering down the surface of bucket.
Ejected from nozzle mouth, the water flow forms a velocity discontinuity with air around it which generates the formation of swirl.
With the help of professional mesh generation software ICEM CFD, an unstructured tetrahedral mesh is generated, with the total mesh number of 915000.
By COUPLED method, selected coupled calculation can be done to investigate the sediment and water movement, and all the calculations led to the property of sediment movement in the water flow area.
In this paper, we set a constant value for jet flow diameter,, assuming jet flow only watering down the surface of bucket.
Online since: July 2014
Authors: Wei Lan
Because at the beginning of setting and hardening of cement, pressure water is sprayed to wash off the cement paste and reveal more than half of rice stone particles, rice stone particles are half embedded in the cement slurry.
When identifying materials, the designer party mainly conducts research into mineralogical composition, microtexture, water solubility, acid solubility, water absorption, and soluble salt content of main substrates, as well as the corrosion principles of strong acid and strong alkali on granitic plaster materials.
After cleaning weak alkaline neutralizer should be immediately used and washed with water until the walls show neutral by the wide range PH test paper.
For a large area of Kailuan Building’s granitic plaster walls, after using 6# to remove most soiling, other cleaning agents are used to remove the remaining heavily deteriorated dirt and water repellent should be brushed.
However, there are some problems: local soiling is not yet cleaned; some historic water brush results in excessive cleaning.
When identifying materials, the designer party mainly conducts research into mineralogical composition, microtexture, water solubility, acid solubility, water absorption, and soluble salt content of main substrates, as well as the corrosion principles of strong acid and strong alkali on granitic plaster materials.
After cleaning weak alkaline neutralizer should be immediately used and washed with water until the walls show neutral by the wide range PH test paper.
For a large area of Kailuan Building’s granitic plaster walls, after using 6# to remove most soiling, other cleaning agents are used to remove the remaining heavily deteriorated dirt and water repellent should be brushed.
However, there are some problems: local soiling is not yet cleaned; some historic water brush results in excessive cleaning.
Online since: August 2013
Authors: Han Ding Guo, Yin Xian Zhang, Xing Wei, Hang Yu Zeng, Xiu Feng Men
The professionals pre-job training for constructors of building energy efficiency project, confirmation about demonstration models of building energy efficiency project by responsibility main subjects, such as construction unit, design unit, supervision unit and so on, all above also belong to the supervision and random checking on construction preparation stage.
The installation of air supply system, exhaust system, air conditioning ventilation system and air-conditioning water system in ventilation and air conditioning energy efficiency project should check all equipments, automatic control valves and instruments; installation and debugging situation about hydraulic balance devices of branch lines in water system; installation of cold and heat metering equipments in every building, household and room.
The model choice, installation and debugging of fan-coil units, fans in air-conditioning and ventilation systems, bidirectional ventilation devices which have heat recovery function, exhaust heat recovery units in central exhaust systems, electric two-way regulating valves in return pipes of air conditioning units, electric two-way regulating valves in fan coil units’ return pipes, hydraulic balance devices in air conditioning cold hot water systems, automatic control valves and instruments in cold (hot) quantity measurement devices should be carefully checked.
The supervision and random checking also contains the followings: material’s selection of thermal-protective coatings and vapor barriers in pipes of air conditioning water systems; dispose and cold bridge partition measures about the insulation gaskets between hot water pipes, cold water pipes and scaffolds in air conditioning water system; single machine commissioning and debugging of ventilators and air conditioning units after the installation of ventilation and air conditioning systems; combined trial operation and debugger checking of ventilation and air conditioning systems under no production load.
Supervision and random checking on distribution and lighting energy efficiency project .The supervision and random checking on distribution and lighting energy efficiency project has the following contents: electricity metering equipment installation of cooling water pump power, power electricity, cooling tower water pump power in boiler rooms; installation of efficient light sources, efficient lamps and lanterns, energy saving control devices in residential public parts and public buildings; installation of energy-saving equipments, such as water pumps and fans; detection of the low-voltage distribution system and illuminating system.
The installation of air supply system, exhaust system, air conditioning ventilation system and air-conditioning water system in ventilation and air conditioning energy efficiency project should check all equipments, automatic control valves and instruments; installation and debugging situation about hydraulic balance devices of branch lines in water system; installation of cold and heat metering equipments in every building, household and room.
The model choice, installation and debugging of fan-coil units, fans in air-conditioning and ventilation systems, bidirectional ventilation devices which have heat recovery function, exhaust heat recovery units in central exhaust systems, electric two-way regulating valves in return pipes of air conditioning units, electric two-way regulating valves in fan coil units’ return pipes, hydraulic balance devices in air conditioning cold hot water systems, automatic control valves and instruments in cold (hot) quantity measurement devices should be carefully checked.
The supervision and random checking also contains the followings: material’s selection of thermal-protective coatings and vapor barriers in pipes of air conditioning water systems; dispose and cold bridge partition measures about the insulation gaskets between hot water pipes, cold water pipes and scaffolds in air conditioning water system; single machine commissioning and debugging of ventilators and air conditioning units after the installation of ventilation and air conditioning systems; combined trial operation and debugger checking of ventilation and air conditioning systems under no production load.
Supervision and random checking on distribution and lighting energy efficiency project .The supervision and random checking on distribution and lighting energy efficiency project has the following contents: electricity metering equipment installation of cooling water pump power, power electricity, cooling tower water pump power in boiler rooms; installation of efficient light sources, efficient lamps and lanterns, energy saving control devices in residential public parts and public buildings; installation of energy-saving equipments, such as water pumps and fans; detection of the low-voltage distribution system and illuminating system.
Online since: December 2013
Authors: Jing Bo Zhao
Active solar energy heating electricity as auxiliary energy, drive with solar heating water circulating to heating room in the pipeline.
So water source heat pump has good prospect of energy saving.
The sea is the earth's climate and natural regulation of water cycle source, its capacity is huge, and the atmosphere, land by way of energy and material such as water vapor cycle, is a natural capacity of huge cooling and heat sources, low refrigeration heating provides good condition for humanity, sea water heat pump is a good choice.
Application of biomass energy in HVAC, mainly using biogas heating and hot water production, rural application prospect in our country.
As long as the HVAC professional workers, and energy environmental protection workers unremitting efforts, energy consumption of air conditioning system can do better.
So water source heat pump has good prospect of energy saving.
The sea is the earth's climate and natural regulation of water cycle source, its capacity is huge, and the atmosphere, land by way of energy and material such as water vapor cycle, is a natural capacity of huge cooling and heat sources, low refrigeration heating provides good condition for humanity, sea water heat pump is a good choice.
Application of biomass energy in HVAC, mainly using biogas heating and hot water production, rural application prospect in our country.
As long as the HVAC professional workers, and energy environmental protection workers unremitting efforts, energy consumption of air conditioning system can do better.
Online since: November 2013
Authors: Ya Wei Wang, Shu Hao Zhang
Beside these soluble stratums the karst developed in medium and violent degree, karstic water, fissure water and fault water consist most part of underground water.
The underground water are made up mostly by the karstic water and fissure water.
In the ground under the exit section, the underground water were mostly the karstic water and fissure water.
Application of Infrared Water Detecting in Detecting the Migration Rule of Confined Water of the Tunnel Vault [J].
(In Chinese) [6] The Professional Standards Compilation Group of People’s Republic of China [S].
The underground water are made up mostly by the karstic water and fissure water.
In the ground under the exit section, the underground water were mostly the karstic water and fissure water.
Application of Infrared Water Detecting in Detecting the Migration Rule of Confined Water of the Tunnel Vault [J].
(In Chinese) [6] The Professional Standards Compilation Group of People’s Republic of China [S].
Online since: June 2010
Authors: Xiao Bin Zhou, Jian Zhang, Ji Hong Zhou, Bin Wang
Extinguishing
method: Use water spray to cool , made the containers transfer to open area if possible .
Contact with the eye : wash the eye with water flowing or normal saline, then seek medical attention.
Spray cooling water or foam and dilution steam, to protect the site personnel.
Because carbon disulfide is easy to volatilize under room temperature, the container can be sealed surface water.
To Strengthen Chemical Industry Technical Management of Environmental Risk To make technical specification of environmental risk management firstly, clear understanding of various carbon disulfide emergency treatment techniques and to strengthen the training of professional personnel, the Propaganda of society in general levels.
Contact with the eye : wash the eye with water flowing or normal saline, then seek medical attention.
Spray cooling water or foam and dilution steam, to protect the site personnel.
Because carbon disulfide is easy to volatilize under room temperature, the container can be sealed surface water.
To Strengthen Chemical Industry Technical Management of Environmental Risk To make technical specification of environmental risk management firstly, clear understanding of various carbon disulfide emergency treatment techniques and to strengthen the training of professional personnel, the Propaganda of society in general levels.