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Online since: May 2013
Authors: Jian He Xu, Sheng Song, Chun Hui Zhang
Designers focus on siting, energy and water use and conservation, air and water quality, and use of natural resources.
As design professionals we must commit ourselves to an increasingly aggressive vision and hold ourselves accountable for the work we do to realize a bright green, or living future [7].
As design professionals we must commit ourselves to an increasingly aggressive vision and hold ourselves accountable for the work we do to realize a bright green, or living future [7].
Online since: January 2013
Authors: Valery Morozov, Zorigt Ganbaatar, Valeriy Stoliarov, Lodoy Delgerbat, Ludmila Bokányi
Now-a-days researchers from Moscow State Mining University (Russia) and University of Miskolc (Hungary) are dealing with this field regarding the grinding and flotation processes, together with the professionals of "Erdenet" Joint Venture (Mongolia) [3].
The controlled input technological parameters are as follows: density of hydro cyclone discharge; yield of finish class; filling ratio of the mill; actual capacity of the mill; supply of ore into mill; supply of water into mill and hydro cyclone sump; pulp level in sump and other auxiliary parameters.
Output parameters are such as the controlling and regulating forces (effects): feed of ore into mill; feed of water into mill; feed of water into sump of hydro cyclone; rotation speed of hydro cyclone pump drive.
Block-scheme of algorithm for evaluation of system efficiency and parameter-selection in the model-oriented control: β-74 – yield of class -74 μm; ρp – pulp density; GR – ore grindability; Qo – ore load in grinding; Pe – consumed mill engine energy; Мm – load ratio in mill drum; Pcl – consumed energy in classification; Qw – water consumption; Qw/m – water consumption in mill; Qw/cl – water consumption in classificatory; Мc – circulating load; opt – optimal value.
The controlled input technological parameters are as follows: density of hydro cyclone discharge; yield of finish class; filling ratio of the mill; actual capacity of the mill; supply of ore into mill; supply of water into mill and hydro cyclone sump; pulp level in sump and other auxiliary parameters.
Output parameters are such as the controlling and regulating forces (effects): feed of ore into mill; feed of water into mill; feed of water into sump of hydro cyclone; rotation speed of hydro cyclone pump drive.
Block-scheme of algorithm for evaluation of system efficiency and parameter-selection in the model-oriented control: β-74 – yield of class -74 μm; ρp – pulp density; GR – ore grindability; Qo – ore load in grinding; Pe – consumed mill engine energy; Мm – load ratio in mill drum; Pcl – consumed energy in classification; Qw – water consumption; Qw/m – water consumption in mill; Qw/cl – water consumption in classificatory; Мc – circulating load; opt – optimal value.
Online since: February 2011
Authors: Gen Sheng Feng, Ting Feng
Professional subject experimental teaching system is built upon improving the students’ practical and innovative ability.
This course combines the specialized course with experimental content of professional basic course.
For example, experimental system of water model, the analysis of powder properties, and the metallurgical property of iron ore were successfully applied in the experimental teaching systems.
The system of water model includes 1:1 water model which are the first 1:1 water models in our country, and some 1:2-1:5 water models.
The water models can be used to simulate the converter and ladle-metallurgy, continuous casting, tundish and crystallizer in the process of steel-making, which facilitate the experimental teaching.
This course combines the specialized course with experimental content of professional basic course.
For example, experimental system of water model, the analysis of powder properties, and the metallurgical property of iron ore were successfully applied in the experimental teaching systems.
The system of water model includes 1:1 water model which are the first 1:1 water models in our country, and some 1:2-1:5 water models.
The water models can be used to simulate the converter and ladle-metallurgy, continuous casting, tundish and crystallizer in the process of steel-making, which facilitate the experimental teaching.
Online since: April 2014
Authors: Zhi Feng Hao, Jian Yu, Can Huang Yu, Shao Bing Yang, Jia Hao Tan
In clinical diagnoses, the images of every direction of layer will be clearer with proper use of MRI contrast agent, which can help radiologists and other medical professionals to identify tumors much easier.
Diethylenetriamine-N, N’-bis (2-acetamide benzoic acid)-N, N’ -bisacetic acid were obtained according to the reported procedure [3] and dissolved in water.
Doubly distilled water was used throughout the experiment.
The precipitation was filtered and washed by distilled water, and white powder was obtained with 60% yield.
The first step was in the range of 100~170℃ with 7.5% weight lost, which is consistent with the loss of water molecule.
Diethylenetriamine-N, N’-bis (2-acetamide benzoic acid)-N, N’ -bisacetic acid were obtained according to the reported procedure [3] and dissolved in water.
Doubly distilled water was used throughout the experiment.
The precipitation was filtered and washed by distilled water, and white powder was obtained with 60% yield.
The first step was in the range of 100~170℃ with 7.5% weight lost, which is consistent with the loss of water molecule.
Online since: November 2013
Authors: Fan Chen, Qing Cui, Cun Wei Zhan, Shen Qiang Liu
Sources protection zones for drinking water, Scenic spots, Protection unit of cultural relic, the residential, cultural and education area.
Meanwhile, the proposed route passed through or over Sources protection zones for drinking water in 16 cases.
Support Facilities sited partial located in drinking water source protection area.
Optimize the inner layout of Support Facilities, set up the pollutant buildings and structures outside protected areas Optimize the site to avoid drinking water source protection area.
Enhance the professional training to PEIA technical staff.
Meanwhile, the proposed route passed through or over Sources protection zones for drinking water in 16 cases.
Support Facilities sited partial located in drinking water source protection area.
Optimize the inner layout of Support Facilities, set up the pollutant buildings and structures outside protected areas Optimize the site to avoid drinking water source protection area.
Enhance the professional training to PEIA technical staff.
Online since: February 2014
Authors: Peng Kun Liu, Jun Ting Liu, Yan Hua Fu, Rui Ya Zhang, Wen Yu Li, Hui Jun Ren
But the inevitable result is the serious pollution of the land, water, forest and agricultural resources.
Mining destruction of land started under control and abandoned mine land began to be used, also water pollution had been effectively controlled.
After that proposed harvesting complex row of train operations and heap -shaped landforms farming methods, such as engineering and biological reclamation, dredging discharge water, land leveling, land subsidence of terraces, terracing and other non- technical testing.
The ecological restoration research has mining, geology, surveying, agriculture, geography, soil science, environmental protection, water conservation, ecology, land use planning and utilization, forestry and other professionals.
It can’t found ecological restoration effects in deeper level, such as in landscape connectivity, soil water area, anti-erosion effect of landscape pattern, vegetation productivity and other aspects, we need to conduct further researches.
Mining destruction of land started under control and abandoned mine land began to be used, also water pollution had been effectively controlled.
After that proposed harvesting complex row of train operations and heap -shaped landforms farming methods, such as engineering and biological reclamation, dredging discharge water, land leveling, land subsidence of terraces, terracing and other non- technical testing.
The ecological restoration research has mining, geology, surveying, agriculture, geography, soil science, environmental protection, water conservation, ecology, land use planning and utilization, forestry and other professionals.
It can’t found ecological restoration effects in deeper level, such as in landscape connectivity, soil water area, anti-erosion effect of landscape pattern, vegetation productivity and other aspects, we need to conduct further researches.
Online since: November 2012
Authors: Ming He Zhu, Cheng Fei Niu, Xu Bo Yu
Introduce
As the fast growing demand for oil, risk from shipping poses a serious threat to the waters of ecological environment, fisheries, aquaculture, tourism and marine transportation.
In France, CEDRE (Center of Documentation, Research and Experimentation on Accidental Water Pollution) led the development of an oil sensitivity atlas for the Finisterre region.
In today's complex natural environment by sea port, to put forward further risk assessment in dock and measures to protect the priority for special logistics infrastructure, the main problem is the lack of proper evaluation technology for port professionals (port risk management personnel, auditors of the port) to support the risk management cycle.
References [1] Wang Dong, Cheng Yu, Gao Qi, in: Oil spill during ice age and oil spill response system in Bohai sea, edited by China Water Transport, volume 5(2011), p. 22-23
[17]Smith, R.A., Slack, J.R., Wyant, T., et al, in: The oil spill risk analysis model of the US Geological Survey, edited by Geological Survey Professional Paper, 1227, US Geological Survey, Reston, VA, USA(1982), p.36
In France, CEDRE (Center of Documentation, Research and Experimentation on Accidental Water Pollution) led the development of an oil sensitivity atlas for the Finisterre region.
In today's complex natural environment by sea port, to put forward further risk assessment in dock and measures to protect the priority for special logistics infrastructure, the main problem is the lack of proper evaluation technology for port professionals (port risk management personnel, auditors of the port) to support the risk management cycle.
References [1] Wang Dong, Cheng Yu, Gao Qi, in: Oil spill during ice age and oil spill response system in Bohai sea, edited by China Water Transport, volume 5(2011), p. 22-23
[17]Smith, R.A., Slack, J.R., Wyant, T., et al, in: The oil spill risk analysis model of the US Geological Survey, edited by Geological Survey Professional Paper, 1227, US Geological Survey, Reston, VA, USA(1982), p.36
Online since: October 2012
Authors: Guo Zhen Zhang, Qian Wang, Fu Ping Wu
Tunnel Engineering and the water environment interactions
The Effects of Tunnel Engineering on Water Environment
The impact of tunnel construction on the water environment are both quantitative and qualitative.
The Effects of Water Environment on Tunnel Engineering Water environmental influence on tunnel construction is tunnel surge water leakage and water pressure.
Tunnel Water Ecological Technology in Arid and Semi-arid Regions Research on Tunnel Line Selection Based on Water Ecological Protection System: The climate, hydrology, water resources of tunnel site and water environmental factors affect on tunnel construction.
water environmental is also the most serious.
Thanks for civil engineering college in Lan Zhou JiaoTong University provides structural experiment center of Gansu Province Key Laboratory of the Ministry of railways, roads and bridges and Underground Engineering Key Laboratory, Lan Zhou JiaoTong University lab and other professional laboratory, for this project required subject intersection and concrete structure related research content to provide the solid technical equipment guarantee.
The Effects of Water Environment on Tunnel Engineering Water environmental influence on tunnel construction is tunnel surge water leakage and water pressure.
Tunnel Water Ecological Technology in Arid and Semi-arid Regions Research on Tunnel Line Selection Based on Water Ecological Protection System: The climate, hydrology, water resources of tunnel site and water environmental factors affect on tunnel construction.
water environmental is also the most serious.
Thanks for civil engineering college in Lan Zhou JiaoTong University provides structural experiment center of Gansu Province Key Laboratory of the Ministry of railways, roads and bridges and Underground Engineering Key Laboratory, Lan Zhou JiaoTong University lab and other professional laboratory, for this project required subject intersection and concrete structure related research content to provide the solid technical equipment guarantee.
Online since: February 2013
Authors: Xiao Liu Shen, Mei Jing Lv, Fei Liu
Songyuan Nie [5] ,from the view of water environment capacity, set PoTang river as an example, study the determination of the design flow and optimized control of water quality with the systems analysis method.We must use the system theory to study the various subsystems and the overall structure.
Fig.1 The method of combination of "top-down" and "bottom-up" The technology roadmap For a complete regional sustainable development planning decision support system, it should have the following elements: the theory of geographic system analysis, geographic information technology, regional urban model, professional planning model, the theory of regional sustainable development, visualization techniques and other computer technology.
The standardized approach is. 3.2 The study of the model As for the characteristics of regional sustainable development, we intend to create six types of models, which are geographic model, ecological model, water-saving model, urban economic model and system planning model.
As an important component of resource ,water resources facing the shortage in North China, we need to establish water-saving models to make the rational use of water resources.
[4] Min Liu; Qian Wang; Lianhua Chen, regional analysis by system analysis method [5] Songyuan Nie, "systems analysis method in water management
Fig.1 The method of combination of "top-down" and "bottom-up" The technology roadmap For a complete regional sustainable development planning decision support system, it should have the following elements: the theory of geographic system analysis, geographic information technology, regional urban model, professional planning model, the theory of regional sustainable development, visualization techniques and other computer technology.
The standardized approach is. 3.2 The study of the model As for the characteristics of regional sustainable development, we intend to create six types of models, which are geographic model, ecological model, water-saving model, urban economic model and system planning model.
As an important component of resource ,water resources facing the shortage in North China, we need to establish water-saving models to make the rational use of water resources.
[4] Min Liu; Qian Wang; Lianhua Chen, regional analysis by system analysis method [5] Songyuan Nie, "systems analysis method in water management