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Online since: July 2011
Authors: H. Hoornahad, E. A. B. Koenders
Therefore understanding the behavior of the mixture during this early period is a crucial requirement for the technical and economical success of professional production sites.
Vp,v = (1) Vs = .π. ∑ ni ri3 (2) Vp,e = .π. ∑ ni [(ri + δ p,e)3- ri3] (3) Table 1: Paste phase specifications Ingredients Portland Cement I 52.5 Limestone powder Water W/C Volume proportion 0.365 0.214 0.413 1.13 Mix N.
Except for the amount of superplasticizer, the volume fractions of the other ingredients in the paste mixes was kept constant and the volumetric water to cement ratio was thus kept equal to 1.13 while the corresponding consistency of each mixture is characterized by a parameter called characteristic stress (Cs) which can be obtained regarding the results of the controlled tensile deformation test for bridge paste in the fresh state [5, 6] (Table 1).
Vp,v = (1) Vs = .π. ∑ ni ri3 (2) Vp,e = .π. ∑ ni [(ri + δ p,e)3- ri3] (3) Table 1: Paste phase specifications Ingredients Portland Cement I 52.5 Limestone powder Water W/C Volume proportion 0.365 0.214 0.413 1.13 Mix N.
Except for the amount of superplasticizer, the volume fractions of the other ingredients in the paste mixes was kept constant and the volumetric water to cement ratio was thus kept equal to 1.13 while the corresponding consistency of each mixture is characterized by a parameter called characteristic stress (Cs) which can be obtained regarding the results of the controlled tensile deformation test for bridge paste in the fresh state [5, 6] (Table 1).
Online since: November 2013
Authors: Shu Hao Zhang, Ya Wei Wang
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: January 2012
Authors: Li Ping Zhou
Reports about strange odor sent out from buildings’ basements, polluted water supply or queer disease that can’t be diagnosed by doctors are here and there.
One button battery will make 600 tons of water undrinkable (which is the total drinking water of a person throughout his life).
For instance, some will join in the air directly through evaporation, while more enter into human body through touching, eating polluted food or drinking polluted water.
The existing environment monitoring index only contains figures of air and water quality, which bears no connection with garbage emission and pollution.
Those facilities contain incineration, dehydration and solid waste lantern facilities as well as landfills, surface aquifer and underground water injection wells
One button battery will make 600 tons of water undrinkable (which is the total drinking water of a person throughout his life).
For instance, some will join in the air directly through evaporation, while more enter into human body through touching, eating polluted food or drinking polluted water.
The existing environment monitoring index only contains figures of air and water quality, which bears no connection with garbage emission and pollution.
Those facilities contain incineration, dehydration and solid waste lantern facilities as well as landfills, surface aquifer and underground water injection wells
Online since: August 2013
Authors: Xue Fang Bao
soilless cultivation, Soil of planting roof since the major soil, easy to harden, the cost is relatively high,and Soilless planting (Vermiculite, sawdust or rock wool blend of rich soil for planting)roof weight is only with thick soil roof weight 1/3, and the thermal insulation effect is improved more than 3 times; Rich soil can be combined with the local mine resources, Such as Anhui HuaiNan and Huaibei coal slag, coal gangue and other organic manure materials and processing(Fig.1),Vegetation roofing according to plant species can be divided into to the cultivation of low shrubs, lawns, ground cover plants mainly simple vegetation roofing and garden ornaments, provide recreation space garden vegetation roofing, The former requires building roof load is greater than 100kg/m2, the latter because people requires building roof load greater than 200kg/m2, In addition to vegetation roofing design also need to consider to prevent the growth of plant roots, plant irrigation, soil erosion and water
Fig.2 Types suitable for growing plants (2) planting technology Roof greening is different from the ground greening, planting high technical requirements, it is necessary to consider the needs of the normal growth of plants, but also consider the effect of vegetation on buildings, plants need water, drainage, irrigation, fertilization, the building has to solve thermal insulation, waterproof problem, The general structure of roof from top to bottom is: landscape vegetation layer, a growing medium layer, filter layer, drainage layer, waterproof layer, root resistance layer, insulating layer, structure layer.
The vegetation layer is the main function of roof greening layer, the ecological and social benefits, energy-saving, Vegetation is chosen to follow the climate adaptation principle, both the visual arts requirements; The filtering layer often choose the coarse sand, glass fiber cloth or straw can smooth drainage and to prevent leakage of soil particle material, prevent fine particles in the soil and nutrients loss, even blocking the drainage pipe, the Fig.3 Vegetation roof planting layer drainage layer; storage effect is eliminated in time rain or irrigation water, But also have needs certain storage part of water for plant growth, The market of modular storage and drainage tray (Fig.3) design is reasonable, water more than top depth, excess water will be through the opening into the roof drainage system disk top surface groove, with storage capacity, can provide the drought season plants need water, so water storage, drainage layer with certain drought waterlogging the role, to adapt
Roof greening reduced discharge of rainwater, dense city buildings, structures the hot summer and cold winter rainy season a lot of precipitation can not discharge in a short period of time, very easy to cause the city waterlogging, Roof greening provides the possibility to store precipitation, reduce the city drainage system pressure, reduce the cost of sewage treatment, the city rain water as a valuable natural resource, reduce the rate of greening water irrigation. 4.
Anhui Hefei:HeFei University of Technology,2001.9 [4] China Construction Association Professional Committee of architects branch building technology.
Fig.2 Types suitable for growing plants (2) planting technology Roof greening is different from the ground greening, planting high technical requirements, it is necessary to consider the needs of the normal growth of plants, but also consider the effect of vegetation on buildings, plants need water, drainage, irrigation, fertilization, the building has to solve thermal insulation, waterproof problem, The general structure of roof from top to bottom is: landscape vegetation layer, a growing medium layer, filter layer, drainage layer, waterproof layer, root resistance layer, insulating layer, structure layer.
The vegetation layer is the main function of roof greening layer, the ecological and social benefits, energy-saving, Vegetation is chosen to follow the climate adaptation principle, both the visual arts requirements; The filtering layer often choose the coarse sand, glass fiber cloth or straw can smooth drainage and to prevent leakage of soil particle material, prevent fine particles in the soil and nutrients loss, even blocking the drainage pipe, the Fig.3 Vegetation roof planting layer drainage layer; storage effect is eliminated in time rain or irrigation water, But also have needs certain storage part of water for plant growth, The market of modular storage and drainage tray (Fig.3) design is reasonable, water more than top depth, excess water will be through the opening into the roof drainage system disk top surface groove, with storage capacity, can provide the drought season plants need water, so water storage, drainage layer with certain drought waterlogging the role, to adapt
Roof greening reduced discharge of rainwater, dense city buildings, structures the hot summer and cold winter rainy season a lot of precipitation can not discharge in a short period of time, very easy to cause the city waterlogging, Roof greening provides the possibility to store precipitation, reduce the city drainage system pressure, reduce the cost of sewage treatment, the city rain water as a valuable natural resource, reduce the rate of greening water irrigation. 4.
Anhui Hefei:HeFei University of Technology,2001.9 [4] China Construction Association Professional Committee of architects branch building technology.
Online since: September 2014
Authors: Ying Yang, Heng Sheng Ma
LEED Accredited Professional Low Impact Design Studio. 2010.
2].
The watering cost for vegetation Rainwater with better water quality that discharged from bio-retention overflow pipe and drain can be used for spraying roads, green spaces.
Thus compared with the traditional rainwater drainage patterns, LID mode can save watering cost.
The cost of pollution treatment A complete set of municipal roads and drainage system needs to consider the issue of water quality pollution treatment.
In the traditional rainwater drainage pattern, often use underground drainage pipe to discharge rainwater to distant sewage treatment plant, there after water quality treatments, clean water can be used as recycling water resource.
The watering cost for vegetation Rainwater with better water quality that discharged from bio-retention overflow pipe and drain can be used for spraying roads, green spaces.
Thus compared with the traditional rainwater drainage patterns, LID mode can save watering cost.
The cost of pollution treatment A complete set of municipal roads and drainage system needs to consider the issue of water quality pollution treatment.
In the traditional rainwater drainage pattern, often use underground drainage pipe to discharge rainwater to distant sewage treatment plant, there after water quality treatments, clean water can be used as recycling water resource.
Online since: February 2013
Authors: Zhong Wen Liu, Jing Hui Zhao, Peng Zhao Gao
The Secondly is the employees and leader image, those staffs should pay attention to their words and manners in daily life and consumption, form low carbon thinking in "low carbon starts from myself", , strengthen their own professional ability, take energy management training; the last is the brand image, the coal enterprises should improve their production, develop the mining area of the modern service industry and diversified industries, build low carbon industry and low carbon products, owning advantage features.
Industry chain: mining, coal processing, flotation and waste rock (coal) power; Fine coal slurry, coal-water slurry and coal chemical industry; And coal underground gasification, liquefied, coal chemical industry, Plant, coking, coal chemical industry.
The coal industry develops and utilizes actively the coal associated mineral resources, turns the resource potential economic value into real economic advantage, and changes water disasters into water conservancy, by devoting efforts to developing coal gangue power generation, coal gangue brick, etc.
For mine water utilization, that is to increase the mine drainage to mining groundwater resources height, make mine water to resources, then to develop water supply industry.
Industry chain: mining, coal gangue and power; Coal gangue, building materials, construction industry; Coal bed methane (CBM), ceramic, construction and installation, real estate development; Coal gangue (fly ash) underground filling; Coal mining, mine water - industry (civil) water supply etc.
Industry chain: mining, coal processing, flotation and waste rock (coal) power; Fine coal slurry, coal-water slurry and coal chemical industry; And coal underground gasification, liquefied, coal chemical industry, Plant, coking, coal chemical industry.
The coal industry develops and utilizes actively the coal associated mineral resources, turns the resource potential economic value into real economic advantage, and changes water disasters into water conservancy, by devoting efforts to developing coal gangue power generation, coal gangue brick, etc.
For mine water utilization, that is to increase the mine drainage to mining groundwater resources height, make mine water to resources, then to develop water supply industry.
Industry chain: mining, coal gangue and power; Coal gangue, building materials, construction industry; Coal bed methane (CBM), ceramic, construction and installation, real estate development; Coal gangue (fly ash) underground filling; Coal mining, mine water - industry (civil) water supply etc.
Online since: October 2011
Authors: Yun Feng Zhu
This paper discusses the feasibility of adopting professional modeling creation software, Rhino, as development platform for sprinklers’ modeling.
Capability of water cylinder can be decided by its requirement in watering, so that we can make further decision on the weight and length of cylinder.
Tread) Right: Positions of Wheels Established According to Chassis Specification Construction of Cab and Water Cylinder.
For water cylinder, we can set up its outline of cross section and utilize command of Extrude for extrusion (refer to right one in Figure 3).
Figure 3 Left: Construction of Cab Right: Construction of Water Cylinder Inside and Outside Decorations.
Capability of water cylinder can be decided by its requirement in watering, so that we can make further decision on the weight and length of cylinder.
Tread) Right: Positions of Wheels Established According to Chassis Specification Construction of Cab and Water Cylinder.
For water cylinder, we can set up its outline of cross section and utilize command of Extrude for extrusion (refer to right one in Figure 3).
Figure 3 Left: Construction of Cab Right: Construction of Water Cylinder Inside and Outside Decorations.
Online since: February 2026
Authors: Parvesh Gangwani, Sania Sania, Meenu Mohil, Ravneet Kaur
The comparison of these materials provides insight into the future of MOSFET technology, helping researchers and industry professionals to next-generation semiconductor solutions.
Purification technology is being improved by recent developments in 2D water filtration materials.
These molecular sieve membranes effectively remove contaminants and salts from water.
MXenes are a class of 2D transition metal carbides and nitrides that show promise for water filtration.
Because of their large surface area and hydrophilicity, they are better at absorbing water pollutants.
Purification technology is being improved by recent developments in 2D water filtration materials.
These molecular sieve membranes effectively remove contaminants and salts from water.
MXenes are a class of 2D transition metal carbides and nitrides that show promise for water filtration.
Because of their large surface area and hydrophilicity, they are better at absorbing water pollutants.
Online since: May 2012
Authors: Guo Sheng Сhen
But because it has highly ornamental and commercial value, especially it plays an important role in soil and water conservation by the rapid vegetative propagation, so that U.
S.D.A.S.C.S. instead of the warning enlarged the planting area of Lonicera maachii Maxim. artificially as the project of funding the soil and water conservation, which more worse threaten the local ecological environment and biodiversity, until 1984, They announced to remove it form natural area by strict measures.
For the Universities, by using the advantage of professional experts and scientific equipments and cooperating with pharmaceutical companies experts to carry out the native medicinal plant research, and also medicinal components research and development on the preserved endemic plants, can help the enterprises to solve the technical problem, and also the capital the enterprise put into, can effectively compensate for the colleges and universities scientific research funds insufficiency, all these can add new vitality to further cooperation of both sides .
Guangxi medicinal botanical garden right now has introduction, cultivation and preservation of the medicinal plants more than 3193, has been called the first medicinal garden in asia, because it has most varieties of plants and is the largest professional medical plants garden in Asia Pacific region.
S.D.A.S.C.S. instead of the warning enlarged the planting area of Lonicera maachii Maxim. artificially as the project of funding the soil and water conservation, which more worse threaten the local ecological environment and biodiversity, until 1984, They announced to remove it form natural area by strict measures.
For the Universities, by using the advantage of professional experts and scientific equipments and cooperating with pharmaceutical companies experts to carry out the native medicinal plant research, and also medicinal components research and development on the preserved endemic plants, can help the enterprises to solve the technical problem, and also the capital the enterprise put into, can effectively compensate for the colleges and universities scientific research funds insufficiency, all these can add new vitality to further cooperation of both sides .
Guangxi medicinal botanical garden right now has introduction, cultivation and preservation of the medicinal plants more than 3193, has been called the first medicinal garden in asia, because it has most varieties of plants and is the largest professional medical plants garden in Asia Pacific region.
Online since: January 2016
Authors: Libor Matějka, Jindřich Stodůlka, Jan Plachý, Markéta Bogárová
With ever increasing requirements towards constructions evaluation regarding the building physics’ aspects, the professional public is asking the question, what is the contribution of the fastening elements to the overall value of the heat transfer coefficient U.
The next criteria to fulfill is the requirement on the lowest surface temperature in the thermal bridge spot – the fastener spot, during the winter season because of the absence of the condensation of the water vapor at the internal surface of the roof structure.
It’s the temperature at which the air is fully saturated with water vapor forcing it to change its state from gas to liquid.
Simulation of the thermal field according to models of mechanically fastened warm roofs This part of the article is focusing on educating the professional public with the simulations of steady thermal field.
The next criteria to fulfill is the requirement on the lowest surface temperature in the thermal bridge spot – the fastener spot, during the winter season because of the absence of the condensation of the water vapor at the internal surface of the roof structure.
It’s the temperature at which the air is fully saturated with water vapor forcing it to change its state from gas to liquid.
Simulation of the thermal field according to models of mechanically fastened warm roofs This part of the article is focusing on educating the professional public with the simulations of steady thermal field.