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However, testing standards are not well defined for PLC communication yet, and there are no professional, systematic and comprehensive detection indicators to measure and evaluate the quality of PLC communication.
Water Conservancy and Electric Power Press. 1998.

Of course, some records in advance are always ready to work processes, inquiry information, blank forms, so that the investigation would certainly be more orderly and professional qualities.
(5) Storage and transport of evidences: Computer evidence should be stored at normal room temperature of the environment, to avoid being moisture, magnetic, dust, smoke, water and oil of.
Hard physical recovery needs professional repair hardware required to open the hard work, you must clean the work indoors.
Finally Investigators can use professional forensic software to analyze user internet history, E-mail records, chat and other communications data.

Moisture dissolved oil trace detector is a professional equipment to online measure moisture in lubricants and insulating oil.
Figure 5 Moisture dissolve oil trace detector There presence of water in oil is divided into three types: dissolve in water, free water, emulsified water.
Dissolved water is also known as saturated aqueous, and it is formed by water in the air into the oil because the oil itself has water absorption.
Free water means water into the oil will gradually focus to the bottom of the tank after standing some time.
Emulsified water means water molecules or small molecules in the state of uniform distribution group in the fluid, even if it is difficult to precipitate out of the long standing water in the state.

The pump was dipped into a glass vessel full of clear water so that the pump glass housing would not reflect the laser.
The pumped saline was sealed in a circulatory model and no tracer glass ball would enter in the water.
Acknowledgment This work is supported by the Jiangsu Province Natural Science Foundation under grant BK20130539, the Professional Research Foundation for Advanced Talents in Jiangsu University under grant 12JDG046.

., Ltd. in 2007 production, the same year on December 20 and put into operation Figure 1 A phase-to-ground lightning flashover discharge Accident Analysis (1) Visual inspection To identify the cause of the accident, the first visual inspection of the arrester found flange three-phase arrester porcelain were filled with water, brown water rendering judgment contains a lot of rust; within the faulted phase arrester fixed rim flange and bolt severe corrosion, explosion-proof membrane damage.
Figure 2 Arrester flange are filled with water Figure 3 Valves scattered cases Internal inspection To further identify the cause of the accident, for the replacement of the three-phase arrester disintegration checks.
Both ends of the cover made ​​of cast iron, cast iron casting themselves poor quality, trachoma and more, there is a gap in the seal groove during processing, so that the sealing gasket installed does not work, moisture and water intrusion from the gap
(3) Infrared Temperature Infrared temperature measurement is carried out in precise arrester charged state temperature, through horizontal and vertical comparison, can be found at a certain degree of deterioration from moisture and lightning running varistor, but needs strong professional testers
China Water Power Press, 2011

The design elevation of the bottom of the 274# pile cap for continuous girder over the Huaihe River Entrance to Ocean is -7.015m and the measured water level on the field is 1.79m.
Calculation with considering the path effect With each construction procedure implementing in actual construction, the water level of the foundation pit decrease continuously with corresponding peripheral earth pressure imposing on the steel sheet pile.
For example, the purlin whose height is -7.8m can be installed by welding and play a role when the water level decreases to the -7.8m, while steel sheet pile has caused deformation.
Based on the reasons above, the improvement of scheme and constructions lies in reducing the accumulation of deformation to put an forward to improvement suggestions as follows: 1) The construction process changes from pouring the bottom concrete by silting suction to the bottom of the foundation pit firstly to silting suction and installing purlins carried out simultaneously because the bulk density of the mixture of water and mud is greater than the density of water , so we can decrease the internal and external pressure difference of the foundation pit and the load that cofferdam bears. 2) When constructing purlins of the second and the third layer, we should install two 20t-hydraulic jack in inner support of the middle crossbeam and pressure to reduce the accumulation of deformation so that the deformation and the maximum stress are reduced at the same time. 3) We should break the traverse brace piles of the second and the third layer in the middle and connect them with elastic
But the welding and installation of hydraulic jack on the inner support need professional technology and increase the difficulty of installation of inner support, while we can adopt this scheme because the tonnage of hydraulic jack is small and the quantity are few, which can provide reference for other construction schemes.

In china, in the famous national park of Huanglong, Jiuzhai Gou and Huashan there also developed a lot of debris flows and water rock flow [3] .Those debris flows ruin the wonderful landscape of tour resort and threaten the safety of the tourists, and affect the tourism economy.
Tianchi Lake extends in north-northeast direction with an area of about 2.44km2, the elevation is 1910m above sea level, and the total water reserves are 2×108m3 with the largest depth of 103m.
The practical non viscous debris flow calculation formulate in china [6] are used to calculate as below: (1) (2) =debris flow average velocity (m/s); = the roughness coefficient of the bed; =the bed slope; =debris flow depth (m); = the concentration of debris flow , = the concentration of water ; = the concentration of debris flow solid materials.
The concentration of the water is usually 1, and the slope grading is 0.061.
U.S. geological survey professional paper, Denver, pp.51-52(1988)

Denise Sullivan Denise Sullivan has been a professional writer for over four years after a long career in business.
Water absorption test Fig. 6 Water absorption behavior of composites Water absorption test were performed according to ASTM D570 standard.
This test covers the method of determination of water absorption of composites.
These composites were immersed in sea water and river water for a period of 30 days.
The moisture absorption in these composites was measured by the weight gain of the material in regular intervals and depicted in fig. 6 The result of water absorption behavior in sea water of composite-1 is less as compared to the river water.

In other words, that is water, electricity and gas, which is relevant to the economic growth and people's lives.
Developing and Promoting Solar Energy As for legal protection, in 2008 Wuhan Construction Committee introduced the first energy-saving new rules "Guidance on Promoting the Use of Solar Hot Water System in the New Construction Projects" so as to promote the application of solar energy.
According to the Guidance, from April 1 on, the new buildings, especially under the 12-storey, which were qualified could install a solar hot water system [1].
By using bond funds and government financial assistance, Wuhan invested much money to support rural biogas construction, issuing a series of management practices and focusing on promotion of "four-integration" mode and "a pool with three changes" mode (biogas and changing kitchens, lavatories and water).
Finally, there is still short of high-qualified professionals, which is one of the key factors restricting the development of Two-oriented energy.

Water supply pipeline network is a system which has a large of spatial attribute data.
In the urban water supply projects, long distance pipeline transport is a common way.
It is available for constant temperature water pipeline.
Jia, “The design and development of water-distribution network information system based on ArcGIS Engine,” China Rural Water and Hydropower, Vol.11 (2007) pp.8-11
Fang, “Establishment and implication of GIS based dynamic hydraulic calculation model for water supply network,” Water & Wastewater Engineering, Vol.32 (2006) p.96-100.