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Online since: December 2012
Authors: Mao Fang Huang, Kui Xu, Hong Hai Huang, Tian Ming Gao, Pu Wang Li
Meanwhile, NMR techniques are professional for elucidate chemical structure.
Both the formic acid (Fluka) and hydrogen peroxide (Shanghai Chemical Reagents, China) were analytically pure reagents and were standardized before use. 2.2 Preparation of epoxidized natural rubber The natural rubber latex concentrate was stabilized with a nonionic surfactant and diluted with a predetermined amount of distilled water.
The temperature of the reaction system was then reduced to room temperature using a cool water bath, and then a proper amount of aqueous ammonia was added to adjust the pH up to 9.
Both the formic acid (Fluka) and hydrogen peroxide (Shanghai Chemical Reagents, China) were analytically pure reagents and were standardized before use. 2.2 Preparation of epoxidized natural rubber The natural rubber latex concentrate was stabilized with a nonionic surfactant and diluted with a predetermined amount of distilled water.
The temperature of the reaction system was then reduced to room temperature using a cool water bath, and then a proper amount of aqueous ammonia was added to adjust the pH up to 9.
Online since: May 2014
Authors: Kai Zhou, Meng Ting Ji
The investigation content: demographic characteristics, college student entrepreneurs such as: gender, family background, professional grade distribution, distribution, subject distribution; students founded enterprise scale, operating status, development prospects; college students to entrepreneurship education and entrepreneurial policy evaluation; college students to entrepreneurship questionnaire and the proposed evaluation.
Research of Soil and Water Conservation, 2008, 4: 063
Journal of North China Institute of Water Conservancy and Hydroelectric Power (Social Sciences Edition), 2010, 1: 028
Research of Soil and Water Conservation, 2008, 4: 063
Journal of North China Institute of Water Conservancy and Hydroelectric Power (Social Sciences Edition), 2010, 1: 028
Online since: February 2013
Authors: Jing Dong
It mainly advocates the land, energy-saving, water saving, and materials as well as the protection of the eco natural environment, which is in close connection with the development needs of the times, with the changing need of the development of the times, however, the design requirements and the level of green building of a new socialist countryside put forward higher requirements, and thus to the green from the traditional high energy consumption building efficient architectural changes in the pattern of ecological environmental protection is not only a trend, is also the only way to a new rural building society for.
In addition, many of the rural seat of government in the process of construction and development of new rural, mostly hired the architect of the city, to transform the existing building, however difficult due to lack of funds and personnel as well as technical aspects, together with many rural building designers mostly a lack of professional training, the design of the building mostly follow the traditional design, not only occupy the land resources, but also spent a lot of manpower, material and financial resources, the environmental impact caused damage to the environment, both is not conducive to the protection of the ecological environment, more is not conducive to the building of new countryside.
From the hydrothermal environment system design point of view, green building water-saving measures can be taken to: adopt water-saving and energy-efficient water supply facilities; build rainwater collection systems, sewage treatment system in place sewage treatment into water, landscape water specifically designed and its inclusion in the water system are taken into account.
In addition, many of the rural seat of government in the process of construction and development of new rural, mostly hired the architect of the city, to transform the existing building, however difficult due to lack of funds and personnel as well as technical aspects, together with many rural building designers mostly a lack of professional training, the design of the building mostly follow the traditional design, not only occupy the land resources, but also spent a lot of manpower, material and financial resources, the environmental impact caused damage to the environment, both is not conducive to the protection of the ecological environment, more is not conducive to the building of new countryside.
From the hydrothermal environment system design point of view, green building water-saving measures can be taken to: adopt water-saving and energy-efficient water supply facilities; build rainwater collection systems, sewage treatment system in place sewage treatment into water, landscape water specifically designed and its inclusion in the water system are taken into account.
Online since: November 2014
Authors: Martina Peřinková, Petra Tymova, Marcela Halirova
Introduction
In most of our cities there were built the housing estates which have always been subject to criticism of professional and general public.
Internal water supply was much more variable for the design of each distribution.
An evaluation of the current status of water supply, that is, material and dimensions of the existing pipeline was performed.
Dimensions of pipes for cold water distribution were sufficient.
The hot water supply was designed by local heating method, which was resolved within a heat source for the residential unit.
Internal water supply was much more variable for the design of each distribution.
An evaluation of the current status of water supply, that is, material and dimensions of the existing pipeline was performed.
Dimensions of pipes for cold water distribution were sufficient.
The hot water supply was designed by local heating method, which was resolved within a heat source for the residential unit.
Online since: January 2010
Authors: Carlos Alves
Discussion
White carbonate deposits on built structures arise from circulation of enriched solutions (resulting
of interaction between water and mortar materials, see, e.g., [3][10][11]) on the affected elements.
The layering observed on some crusts indicates a repetitive process, supporting the hypothesis of recurrent dissolution, associated with water circulation, and precipitation of new coating layers.
Based on a thermodynamic model, Demo et al. [14] related the nucleation rate of Portlandite in cement hydration to water/cement ratio (increasing nucleation rate with decreasing w/c).
Removal of calcium and hydroxide by flowing water promotes further dissolution [12].
Beall: Masonry Design and Detailing: For Architects and Contractors (McGraw-Hill Professional, United States of America 2003)
The layering observed on some crusts indicates a repetitive process, supporting the hypothesis of recurrent dissolution, associated with water circulation, and precipitation of new coating layers.
Based on a thermodynamic model, Demo et al. [14] related the nucleation rate of Portlandite in cement hydration to water/cement ratio (increasing nucleation rate with decreasing w/c).
Removal of calcium and hydroxide by flowing water promotes further dissolution [12].
Beall: Masonry Design and Detailing: For Architects and Contractors (McGraw-Hill Professional, United States of America 2003)
Online since: February 2011
Authors: Rui Lin Lin
Literature Review
Paper is made of plant fibers with water as medium, through pulping, adding glue and fillers, drying, coating, and calendaring.
Their are easy to use with bright colors, (2) poster colors, which are water-based and powdery paste and made of organic/inorganic colors, water, and Acacia gum with dry-proof and mold-proof materials.
They are water-based, easy to dry out, and durable, and (3) watercolors, which include transparent watercolors and gouaches.
The former are with small particles, water.
With the help from the parents, pictures were processed with Photoshop, a popular professional package designers love to use when processing images; and layouts of story contents were done with Illustrator, a graphic package based on vectors developed by Adobe.
Their are easy to use with bright colors, (2) poster colors, which are water-based and powdery paste and made of organic/inorganic colors, water, and Acacia gum with dry-proof and mold-proof materials.
They are water-based, easy to dry out, and durable, and (3) watercolors, which include transparent watercolors and gouaches.
The former are with small particles, water.
With the help from the parents, pictures were processed with Photoshop, a popular professional package designers love to use when processing images; and layouts of story contents were done with Illustrator, a graphic package based on vectors developed by Adobe.
Online since: September 2011
Authors: Liang Wang
It involves the disciplines of Architecture --- urban planning, architecture, building physics (architectural acoustics, building optical, thermal engineering construction), construction structure, building materials, building water supply and drainage, building heating and ventilation, building electrical, landscape architecture, municipal engineering and other professional, it also involves physical geography, meteorology, and environment-related subjects and residents other factors.
Therefore, the district Planning should focus on issues of energy, adapted to local natural environment, climate and geography, from the project site, transportation organizations, environmental greening, air quality, noise, light and sunshine, and other aspects of microclimate requirements, selecting housing land, to avoid adverse environmental impact on the living environment. in the planning and design of residential building energy saving design with tie, and consider building orientation, sun space, ventilation, landscaping, rational use of water recycling systems, permeable brick and other energy-saving, environmental protection technology and Ancillary equipment (energy supply, small high-level water supply, public lighting, elevators, etc.), energy-saving measures to vigorously promote the part of the solar hot water systems use advanced technology to form a system of residential building energy system and the creation of low energy consumption, environment comfortable living environment
Community greening and water can effectively reduce the temperature, humidity, wind wind, improving the ventilation quality, thus inhibiting production of heat island effect and improve the structure of residential buildings outside the maintenance of thermal properties.
Therefore, the district Planning should focus on issues of energy, adapted to local natural environment, climate and geography, from the project site, transportation organizations, environmental greening, air quality, noise, light and sunshine, and other aspects of microclimate requirements, selecting housing land, to avoid adverse environmental impact on the living environment. in the planning and design of residential building energy saving design with tie, and consider building orientation, sun space, ventilation, landscaping, rational use of water recycling systems, permeable brick and other energy-saving, environmental protection technology and Ancillary equipment (energy supply, small high-level water supply, public lighting, elevators, etc.), energy-saving measures to vigorously promote the part of the solar hot water systems use advanced technology to form a system of residential building energy system and the creation of low energy consumption, environment comfortable living environment
Community greening and water can effectively reduce the temperature, humidity, wind wind, improving the ventilation quality, thus inhibiting production of heat island effect and improve the structure of residential buildings outside the maintenance of thermal properties.
Online since: June 2014
Authors: Ying Hui Chen, Shuai Wang, Wen Lian Liu
ISSMGE (1987) established the environmental geotechnical engineering professional committee (TC-5).
The biosphere, hydrosphere, lithosphere and rock and geological microbial loop and other environment and their interaction problems", mainly is the study of cycles in a different environment (cycle) under the action of the engineering properties of soil and water system.
If the problem cannot be solution, it will bring some hidden trouble to people's health and social security. 5.2 The problems of water resources Long-term urban development process, there is no cause to the attention of the environmental protection, life and industrial sewage directly discharged into the nature.With large amounts of sewage emission, far more than the natural purification capacity, a large number of fresh water resources had be polluted, the limited water resources can't be satisfy people's needs. 5.3 Problems caused by engineering activities Constantly crowded urban population, the city scale expands unceasingly.
(3)Rational utilization ground water.
The biosphere, hydrosphere, lithosphere and rock and geological microbial loop and other environment and their interaction problems", mainly is the study of cycles in a different environment (cycle) under the action of the engineering properties of soil and water system.
If the problem cannot be solution, it will bring some hidden trouble to people's health and social security. 5.2 The problems of water resources Long-term urban development process, there is no cause to the attention of the environmental protection, life and industrial sewage directly discharged into the nature.With large amounts of sewage emission, far more than the natural purification capacity, a large number of fresh water resources had be polluted, the limited water resources can't be satisfy people's needs. 5.3 Problems caused by engineering activities Constantly crowded urban population, the city scale expands unceasingly.
(3)Rational utilization ground water.
Online since: July 2011
Authors: Shu Ai Wang, Feng He Tao, Chang Zhi Jia
The cleaning effect is better that caustic soda solution is used for cleaning steel parts, whose water scale mainly contains silicate.
The cooling system often near water, so the water component is not the same in different time, and the factory uses hydrochloric acid solution uniformly, the cleaning quality of cooling system will be lowered.
Then, all the new comers must receive pre-job training so as to strengthen ideas of the quality and study professional skill.
Application of Principal Component Analysis in Evaluation of Water Quality of Lean River.
China Water & Wastewater, 2009(16): 104-108
The cooling system often near water, so the water component is not the same in different time, and the factory uses hydrochloric acid solution uniformly, the cleaning quality of cooling system will be lowered.
Then, all the new comers must receive pre-job training so as to strengthen ideas of the quality and study professional skill.
Application of Principal Component Analysis in Evaluation of Water Quality of Lean River.
China Water & Wastewater, 2009(16): 104-108
Online since: December 2016
Authors: Hong Guang Li, Shi Guo Du, Shao Sen Lin, De Jiang Lin
The silicone oil emulsion (20g) was mixed with distilled water (80g); the urea (3g), ammonium nitrate (0.3g), and resorcinol (0.3g) were dissolved in distilled water (20g) and then mixed with the diluted silicone oil emulsion with a magnetic stirrer (approximately 500 rpm).
When the formaldehyde-urea molar ratio was 1.0, the generation amount of hydroxymethyl was relatively less, so the water solubility of urea-formaldehyde polycondensate decreased and its mobility also weakened from aqueous phase to emulsion interface.
When the formaldehyde-urea molar ratio increased, the generation amount of hydroxymethyl increased relatively, so the water solubility of urea-formaldehyde polycondensate increased and its mobility improved from aqueous phase to emulsion interface.
The first stage was from room temperature to 150°C, a smaller weight loss was about 2%, this was attributed to the escape of some small molecules relied mainly on physical adsorption when heated, such as water, ethanol etc.
Liang, Application research of a new ammunition inhibitor in armor-piercer, Symposium of the Professional Committee of Tanks and Armored Vehicles of China Ordnance Society, (2006) 318-321 (in Chinese)
When the formaldehyde-urea molar ratio was 1.0, the generation amount of hydroxymethyl was relatively less, so the water solubility of urea-formaldehyde polycondensate decreased and its mobility also weakened from aqueous phase to emulsion interface.
When the formaldehyde-urea molar ratio increased, the generation amount of hydroxymethyl increased relatively, so the water solubility of urea-formaldehyde polycondensate increased and its mobility improved from aqueous phase to emulsion interface.
The first stage was from room temperature to 150°C, a smaller weight loss was about 2%, this was attributed to the escape of some small molecules relied mainly on physical adsorption when heated, such as water, ethanol etc.
Liang, Application research of a new ammunition inhibitor in armor-piercer, Symposium of the Professional Committee of Tanks and Armored Vehicles of China Ordnance Society, (2006) 318-321 (in Chinese)