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Water vapor permeability is measured with classic method [8].
Water Vapor Permeability (WVP) measurement The copolymer films were sealed on the top glass permeating cup contain distilled water (100% RH; 2337 Pa vapor pressure at 20℃), which was placed in a desiccator at 20 ℃ and 0% RH containing silica (0 Pa vapor pressure).
Water acts a solvent or carrier and causes texture degradation, and chemical and enzymatic reactions [10].
This result mainly attributed to the carbon chain length of copolymer, the increase in water vapor permeability of polymer mainly duo to the tortuous path for water vapor diffusion, because the shorter carbon chain length increasing the diffusion path length.
Acknowledge This work was financially supported by the National Natural Science Foundation of China (31160198), the Applied Basic Research Project of Yunnan (2011FB084), High-End Technology Professionals Introduction Plan in Yunnan province (2010CI119), the Natural Science Foundation of Yunnan (2010FXW004) and the School of Chemistry and Biotechnology, Yunnan University of Nationalities (11HXYJS02).

Keywords: PLC; Constant pressure water supply; Water pump; The inverter Abstract: This paper mainly introduces the application of frequency control in constant pressure water supply, describes the principle of constant pressure water supply technology, and its system structure based.
Traditional water supply model cannot satisfy the needs of the people.
Fig. 1 The constant pressure water supply pumps station 2.Control system Water supply control system is generally installed in the water supply control cabinet, including PLC, frequency converter and electric control device of three parts: 1).PLC is the essence of the variable frequency constant pressure water supply control system.
Adopt the mode of variable frequency constant pressure water supply is analyzed theoretically the positive effect to the safety of water supply.
The power electronic technology and application (electrical engineering and its automation professional correspondence rise this teaching material).

(a) needle water level meter (b)ultrasonic water level meter (c)resistive water level meter Fig.1 Present water level measurement instruments All the water level meters mentioned above have these common characteristics: (1)The water level z is determined based on a zero point elevation z0 and the vertical distance h to the water surface, then z=z0-h; (2)Each water level meter is mounted at a fixed position and can only measure the water level just at a single point; (3)The elevation of zero point z0 is a static value.
(2)Rubber pipe: used to connect water tank and pressure sensor to transmit water pressure
Firstly mounting the water level meter at a static water tank and then use needle meter or other fixed water level gauges to measure the water level z.
The water level is then specified by the vertical distance h which is given out from zero point to water surface by the ultrasonic water level meter.
References [1] PRC Ministry of Water Resources, PRC Professional Standard of Ultrasonic Water Level Gauge(SL/184-1997)[S], China machine press,1998.6.

The ultimate goal of cloud computing is to provide all the users with computing as a public facility so that they can use computer resources as conveniently as they do with water, electricity gas and telephone.
With the help of the assisting service provided by the team of professionals, it analyses, diagnoses, predicts, tracks, assesses and decides on the data by utilizing the cloud platform’s powerful storing, computing and logic ability, and eventually provides the trainers with a set of specialized sports training program.
The sports training metadata are extracted from the core concepts of the human science and sports training knowledge accumulated by the training teams of professionals.
Collaborative Services by Teams of Professionals.The development of cloud computing technology can link people and data closely, ensure communication and collaboration in every application, and truly reach the goal of collaborating without boundaries.
Secondly, the establishment of virtual teams of professionals solves the problem of cross-regional cooperation between teams, and provides the conditions for making the best use of collective wisdom.

Meanwhile, teachers and students can view the specific using situation of library, language laboratory, micro classrooms, public computer rooms and other professional laboratory by the records query module.
Campus Users Web Browsers and Smart Card Reader User Identity Management SIM Card Tracking and Positioning Automatic Identity Recognition Log on Record Query The User Information Management SIM Card Management Multimedia Classroom and Laboratory Management Professional Laboratory Management Public Computer Room Management Micro Classroom Management Language Laboratory Management Multimedia Classroom Management Campus Consumption Management Personal Account Management Campus Bus Consumption Management Laundry Consumption Management Bathrooms Consumption Management Food and Beverage Management Supermarket Consumption Management Water and Electricity Payment Management Library Borrowing Management Students Computer Practices Management Library Access Control Management Library Borrowing Management Fig. 2.
In physics, chemistry, biology, art and design and other professional laboratory door, install automatic identification tag reader for teachers' and students’ mobile telephone SIM card automatic identification.
And record their laboratory using state, in order to achieve professional laboratory science, effective management, improve the effectiveness of laboratory management.
After the automatic identification of mobile telephone SIM card, teachers and students can use the water and electricity payment management module to pay the corresponding the quarters and families water fees, public bathrooms use fee, dormitories hot water use fee, laundry fee and the electricity fee,etc.

Terminology The vapour-proof layer is, in general, a building envelope structure layer restricting the water vapour diffusion from indoor environment into the structure, where a water vapour condensation occurs due to temperature decrease, which can cause loss of structure functioning, structure damage and, alternatively, building structure lifetime reduction.
Construction experience show that 90% of defects are due to faulty and non-professional details mounting.
At leakage of moisture barrier through area of 0,1% diffusion foils underneath the roof covering are not able to give the pass such large amount of water vapour and, consequently, condensation appears underneath the layer [ 2 ].
Several professional sources regard the contact solution as problematic and totally incorrect one [3,4,5].
two layers Among professionals often there are opinions which asses the bonding joints as less reliable, while the joints with bands, which are mechanically pushed by e.g. listel and thus ensure constant strip compression from long term point of view, are more positively evaluated.

Early studies have shown that disease occurs mainly pavement cracks, water damage, rutting and weeping.
The choice of asphalt pavement construction control indicator (W) Cracks B1 Water damage B2 Rutting B3 Weeping B4 Thickness of surface course S3 Air void S1 Compactness S2 Asphalt-aggregate ratio S4 Fig 1.
Therefore, hiring experienced professionals, from the first to last layer pairwise comparison and building judgment matrix, and then sort the single-level.
For the water damage in the road, the degree of influence of S1, S2, S3 and S4 are shown in Table 3.
However, the method is relatively strong subjectivity itself, and different professionals in their understanding of different, different screening programs, future studies need to continue to improve.

The atmospheric transmittance of infrared radiation is the important parameter on the studies of infrared radiation, the Computation of atmospheric transmittance is professional and complicated and it is inconvenient for the application of engineering and technology.
The precision of the atmospheric transmittance of infrared radiation is different for the different trade scientific workers, it are currently used to compute the atmospheric transmittance of infrared radiation by the professional LOWTRAN, MODTRAN and HITRAN infrared emulational software.
A mass of parameters are required for these professional software and it is difficult and inconvenient to be used for other trade scientific workers [2,3].
In the infrared emulational model , the observer height is 4 the down range distance is 9, and the object height is 1,the model atmosphere is mid latitude summer and execute with multiple scattering, the atmospheric components mainly comprise water vapor, ozone, methane, nitrous oxide, carbon monoxide and the CO2 mixing ratio is 330 , the aerosol model used is rural zone and the visible spectrometry is 23 .

Porosity and microstructure SCC using sea water as mixing water and curing water discussed in this paper.
So, there some areas have water resource that quality water does not have qualified as a drinking water.
This experiment designed SCC by using sea water as mixing water that is called SCC sea water.
SCC concrete sea water that uses sea water as mixing water and water treatment, because the sea water containing chloride (Cl) to form friedel’s salt since the age of 1 day.
Concrete: Microstructure, Properties and Materials, 3rd Ed, McGraw-hill_Professional

A professional person response for supervision and inspection of steel columns weld quality.
All welded steel columns must be tested by the professional testing department.
It can pour water to the steel tube directly on Concrete curing time.
Generally first pour 10 cm of conservation of water, the next day to check whether conservation water is needed.
In principle, it is appropriate to ensure 1 cm of water covered on the concrete surface.