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The safety management of building engineering, Dabeihe living area and the lodge building engineering, mining area roadway overhaul project and staff canteen, bathroom renovation project etc. has been completed. 57 apartments were built for the backbones who worked at the frontline and college students, and 128 houses were provided for management personnel and professional and technical personnel.
Circulation utilization of mine water was used to raise the utilization ratio of water resources.
Daanshan mine invested in water treatment station with processing capacity of 3000 m3/d on July 1, 2005, a total of 7.1147 million yuan was invested since the beginning of the project.
After purification treatment of mine water and ground water life green water and mine production, a reliable water supply for the spray was provided for wet drilling, mine roadway flushing and the ground life.
After the operation of water treatment station, 728 thousand tons of water consumption was saved per year [3].

Consider the applicable landform conditions and calculation accuracy, we use GPS and bathymeter together with Surfer software to initially determine the general physiognomy of the riverbed, and then convert the data of water depth into bottom elevation through post-processing function of the software.
Surfer Software Introduction Surfer Software is a piece of professional mapping software, which is essential for geologists and has a wide application. 1) Surfer software has inverse distance weighted interpolation method, minimum curvature method, multiple regression method and other 12 kinds of interpolation methods [1].
Under the condition of obtaining water level of the measured area (we take a certain ship lock on Cao-e River as an example), finish instruments connecting and parameters setting, and then start collecting data.
Import the collected data into bathymeter post-processing software, and use post-processing function of Surfer software for data processing, combine water depth sample with surface elevation and convert the data into riverbed elevation.
Formula for calculating the measuring point elevation [3]: Measuring point elevation=GPS RTK water level －bathymeter water depth The measured data and converted bottom elevation are shown in table 1, 2.

After the on-site inspection hydropower station hydraulic structures, Compared in table 1 Scores for each index, and quantitative indicators. 1.2 Safety assessment level According to the safety evaluation index system, combined with professional knowledge, and reference [14],security level can be divided into 5 grades,including：Ⅰ（85~95）, Ⅱ（75~85）, Ⅲ（65~75）, Ⅳ（55~65）, Ⅴ(45~55).
Rank feature value vector is (10) 4 Examples of application Was built in zhejiang province in December 1959, a small hydropower is given priority to the free flow of water diversion type hydropower station.
It has a water inlet, open channel, daily regulation pool, pressure before the pool, pressure steel pipe diversion structures, etc.
This article USES the fuzzy recognition model for water diversion buildings safety grade evaluation, This method is simple, Its physical concept is clear, and it is versatile.
To evaluate the sustainable utilization of regional water resources fuzzy variable evaluation method[J] [6]Li Yi.

However, to differentiate the ratio, current techniques are tedious and sophisticated that cannot be easily conducted by non-professional users.
Deionized (DI) water obtained from a Milli-Q water purification system (Millipore) was used throughout the work.
Fig. 3a shows an optical image of several DI water drops pipetted on the silanized IOF.
DI water did not wet the surface and the color remained.
Fig. 3 Optical images of silanized IOF tested with DI water, 95% ethanol, gasoline and oil.

The realization and application of the BIM and BLM have provided convenience for numerous kinds of visual analysis (spatial analysis, volume analysis, rendering analysis, structural analysis, heat transfer analysis, etc.) and created the conditions for other professionals to carry out the design analysis (structural analysis, heat transfer analysis, etc.) as well as sustainable eco-architecture analysis (energy consumption analysis, carbon balance analysis, lighting analysis, noise analysis, etc.) [10].
Therefore, the auther thinks that on one hand, the future of the digital technology in architecture should emphasize the integration at all stages and in all areas; on the other hand, it should develop more professional tools in project design and building construction.
On the computer platform, it is possible to do the mass design with a variety of information models (structure, water heating, economy, ecology) and to realize its multi-objective optimization.

benefits, therefore, scientific evaluation index system must be established to fully reflect and evaluate for such multidimensional vectors. [6] Referring to the current research of urban land intensive use at home and abroad[7-9], according to the principle[10] of the systematic and comprehensive and scientific, leading and operability etc, the comprehensive evaluation system of urban land intensive use is established from land use investment and output benefit, land use intensity and land use ecological benefit containing four aspects of 13 indexes to calculate land intensive degree in Anhui Province based on the status quo of economic development and expert advices: Investment in fixed assets per km2 (X1) , Secondary and tertiary industries employees per km2 (X2) , GDP per km2 (X3) , Total retail sales of consumer goods per km2 (X4) , industrial production per km2 (X5) , Local fiscal revenue per km2 (X6) , Per capita Urban construction land (X7) , population density (X8) , Per capita water
Table 1 Evaluation index system of urban land intensive utilization Criterion level Index level Unit Extent of urban land investment Investment in fixed assets per km2 10000yuan/km2 Secondary and tertiary industries employees per km2 person/km2 Output benefit of urban land GDP per km2 10000yuan/km2 Total retail sales of consumer goods per km2 10000yuan/km2 industrial production per km2 10000yuan/km2 Local fiscal revenue per km2 10000yuan/km2 urban land use degree Per capita urban construction land m2/person population density person/km2 Per capita water L/per day Per capita residential area m2/person per capita urban road area m2/person Ecological benefits of urban land Green coverage rate of built district % Per capita public green areas m2/person Result and Analysis In this article, using the statistical data from 2004 to 2009, according to evaluation index system and methods mentioned above, urban land intensive use status and influence factors are analyzed with statistics
The first principal component that can be called into the land input principal component, including asset investment, second and third industry professionals, industrial production per km2 and Per capita urban construction land, of which variance contribution reach over 35 per cent, reflects city land utilization input and output and is the main impact indicator of urban land intensive use.
The second principal component, called land environmental principal components, in per capita water for living, per capita residential area, the green vegetation coverage in the current urban areas, the per capita green area, of which variance contribution reach over 20 per cent, show that the extent of and environmental quality of urban land use have a greater impact on urban land intensive use.
Moreover, per capita domestic water, per capita public green areas and green coverage rate of built district may be seen land ecological benefit principal component, because they have large load in the second principal component.

YU Kong-jian think, livable city need to have two conditions: one is the natural conditions, the fresh air, clean water, safe pedestrian space, plenty of facilities for living, the other is humane conditions, the humanized city, popular city, full human feelings, a culture of city, residents with the sense of belonging city[15].
They include 4 aspects: (1) Some indexes are very professional, difficult to be understood by ordinary citizens. (2) Some indexes such as relationship of neighbors and interpersonal environment reflecting mental feeling of residents are not fully embody. (3)Some parameters expressing of urban connotation and spirit such as city culture or city history are not mentioned. (4)The innovative ability of the city does not involve.
Criterion level Field level Index layer City livability Economic development City economic development third industry values the proportion of GDP, Gini coefficient, CPI index, unemployment rate Residents’ income PGDP, per capita disposable income, Per capita wage income, Per capita social consumer goods retail sales, Engel coefficient City civilaztion Political civilization Scientific and democratic policy-making, make government affairs transparent, Democratic supervision, Citizens’ satisfaction rate of political civilization Social civilization Social insurance coverage, Price hearing, Social assistance ability, Citizens’ satisfaction rate of social civilization Community civilization Community management, property management, Community service, Citizens’ satisfaction rate of community Ecological environment Natural ecological environment Days of Air quality better than or equal to the secondary standard annually, days of temperature between 15°C and 25°C annually, Centralized drinking water
source water quality success rate, Per capita public green land area, green land percent of  builtup area Human environment Cultural Heritage Conservation, Urban Features, City different customs compatibility Housing environment per capita housing space, rate of house price and income, coordination of buildings and the environment Environment management Rate of City industrial sewage treatment, rate of Industrial solid waste disposal utilization,Rate of noise mark area enclothe, environmental protection investment proportion of GDP Life convenience Traffic condition road area per citizen, per capita public transport number, time of citizen for job(one-way) Business service residential area ratio with supermarket around 1km, rate of service facilities of residential area, Citizens’ satisfaction rate of commercial service Urban facilities Rate of urban gas penetration, rate of cable television network coverage, rate of Internet fiber into house, rate of tap water normal supply annually,
1km, community proportion with free athletic facility around 1km, Citizens' satisfaction rate of culture, education, health and sports Medical & health condition coverage ratio of community health service, average life span, Citizens' satisfaction rate of medical & hearth Urban security Criminal offence Annual major criminal crime rate per 100 thousands person, rate of success to crack a criminal case near 3 years Public security Security person number every 10 thousands, citizens' satisfaction rate of social safety Safety system Perfect ratio of lifeline project, natural disasters emergency early warning system Food safey Intensify against the counterfeit and inferior goods, Citizens' satisfaction rate of food security Management efficiency City management mechanism Perfect ratio of city management, Citizens' satisfaction rate of urban outlook, Citizens' satisfaction rate of urban management Informationization scale Level of making government affairs transparent, degree of setup professional

A fuel cell produces electricity, water and heat using fuel and oxygen in the air.
They must help to promote research, develop international codes and standards, champion infrastructure development, facilitate demonstrations and pilot programs, increase public awareness and education, be involved in the training and supply of highly qualified professionals for the industry, and provide incentives to accelerate early market acceptance.
Research on higher temperature proton conducting materials and catalyst layer design that decouples the influence of water could result in improved performance and significant system simplification, e.g., no external humidifier and reduced water management requirements.
The future fuel cell may have the following attributes or some combination thereof: • No impermeable membrane or electrolyte • Higher temperature PEMFC and lower temperature SOFC • No coolant • Little to no influence of water • Non-noble metal based catalysts • Unit cell with 3 layers or less • Multiple direct fuels • Designed from the nano-scale to the macroscopic scale • Validated and predictive models allowing virtual design and testing Summary Today, fuels cells are only a component of a much larger energy system.

Introduction The field of construction is constantly changing and improving, building materials professionals are constantly faced with the challenges of developing new materials as well as improving the functional properties of existing building materials, especially cement-based materials, widely used in load-bearing structures, coatings and finishes.
Adsorbed on cement grains, lignosulfonate molecules push out water molecules and give the solution plasticity.
The samples were made on the basis of cement CEM I 32.5 N and sand in a ratio of 1/3 and a water-cement ratio of 0.5 and modified with a nickel/carbon nanocomposite suspension in an aqueous surfactant solution.
Based on this, it should be assumed that more water is bound in the structure of the prototype.
An increase in the dehydration temperature is associated with the formation of stronger bonds with water in crystalline hydrates and the formation of secondary low-basic calcium hydrosilicates, the formation of which was confirmed by X-ray microanalysis [7].

The concept of insulating materials permeates all professionals, who must guide the choice of construction materials, on the one hand taking into account a relatively low CO2 emission appreciated throughout the life of the material, on the other hand the economy of natural resources (Cornaro and Buratti, 2020) (Pierobon et al., 2015).
Materials and Methods A mixture with 80% wt gypsum plaster and 20% wt cork was mixed with water (water/plaster mass ratio w/p equal to 0.8).
The samples were removed from the molds after half a day and completely dried at 45°C for 2 days, in order to remove all the pore water.
Effect of water content on the acoustical and thermal properties of hemp concretes.