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Abstract: The traditional method of propulsion of Amphibious vehicles in water has tracked the water, propeller and waterjet propulsion.
Introduction Amphibious armored vehicles and water penetration ability to play fast mobility, mainly relying on its water propulsion plant.
The first way is to track the water, is the vehicle into the water, by track's turn in the water thrust forward in the vehicle navigation.
The water efficiency and low utilization rate of less than 10% of its power, water speed slow.
water, after the wing disk automatically into the water to start automatically when landing away.

Research of flood prediction based on subjective/objective evidences fusion model WU Wei1, a, CHEN Yanming1 1 Department of Computer and Information Engineering Zhejiang Water Conservancy and Hydropower College amwuwei@163.com Keywords: flood prediction;subjective and objective evidences fusion;BP neural network;DS evidence theory Abstract.
Based on the background of Baiyun mountain reservoir water resource documents, presents the method combined with BP network and DS evidence reasoning.
Among them, the various factors affecting water resources are treated as measured objects, and the sensor group is responsible for original equipment online collection of information, pre-processing of information (including filtering, noise removal, compression, etc.), and passing information to the partial fusion center to be partially integrated, and finally in the fusion center to be combined, analyzed, evaluated, and thus judge result obtained.
In this paper, we adopt different BP neural network as classifiers to respective fields, and take the credibility value of the neural network classification results and the credibility value of the professional knowledge of experts in the field as input evidence of DS evidence reasoning model, to get high accurate feature classification results of subjective/objective evidence fusion.
For example, Jiangxi province Baiyun reservoir, 2000-2003 flood statistical data, shown in Table I: Table 1 reasoning results of Flood dynamic prediction system fusion center Each Professional Fields Evidence Fusion Input evidence basic probability distribution function value (credibility)(0-1) Feature classification results 0.4302 0.3084 0.0983 0.1131 0.05 unsure 0.4405 0.4156 0.0605 0.0334 0.05 unsure 0.8091 0.1000 0.0409 0 0.05 Flood, determined by expert reasoning system 0.2230 0.4305 0.2740 0.0225 0.05 unsure 0.5484 0.3869 0.0325 0.0261 0.0061 unsure 0.4118 0.5475 0.0342 0.0056 0.0009 unsure 0.7780 0.2165 0.0049 0.0005 0.0001 Flood, determined by subjective and objective Takecalculation process as the example： , K1=m1(u1)*[m2(u2)+ m2(u3)+ m2(u4)]+ m1(u2)*[m2(u1)+ m2(u3)+ m2(u4)]+ m1(u3)*[m2(u1)+ m2(u2)+ m2(u4)]+ m1(u4)*[m2(u1)+ m2(u2)+ m2(u3)] Calculate from Table 1：K1 =0.5751，then 1-K1=0.4249。

Background Natural Gas Hydrates, constituted by methane and water (CH4 • H2O) which is formed in different low temperature (0-10 °C), and high pressure (> 3 MPa) conditions [3], with a white solid crystalline substance, looks like ice, or solid alcohol.
Type-H structure not only can accommodate the above all kinds of molecules, but also can hold the general crude oil iC5 molecules. [4] [5] [6] Natural gas hydrate is a kind of solid crystalline substance which was formed by natural gases and water at relatively low temperatures and high enough pressures [7].So it mostly located in depths greater than 300 meters above the seafloor sediments or in the cold permafrost.
Chinese Academy of geological sciences such as Hou Zengqian in the middle Okinawa trough JADE hot water sedimentary area submarine found CO2 rich natural gas hydrate (through into the sea)[12] .
Guangzhou natural gas hydrate research center, CAS Lanzhou frozen soil, State Oceanic Administration and Ministry of land and resources of Qingdao Marine Geological Institute has engaged in natural gas hydrate researches in professional teams.
In order to provide a good exchange of gas hydrate condition for the researchers, professional conferences on natural gas hydrates are frequently held.

Since 1996, the State has formulated or revised laws on environmental protection, such as those on prevention and control of water pollution, marine environment protection, prevention and control of air pollution, prevention and control of noise pollution, prevention and control of solid waste pollution, evaluation of environmental impact, and prevention and control of radioactive pollution, as well as laws closely related to environmental protection, such as those on water, clean production, renewable energy, agriculture, grassland and animal husbandry.
The State Council has formulated or revised over 50 administrative regulations, such as the Regulations on Environmental Protection Management of Construction Projects, Rules for the Implementation of the Law on the Prevention and Control of Water Pollution, Regulations on the Safety Management of Dangerous Chemicals, Regulations on the Management of Collection and Use of Waste Discharge Fees, Measures on the Management of Dangerous Waste Operation Licenses, Regulations on the Protection of Wild Plants, and Regulations on the Safety Management of Agricultural Genetically-modified Organisms[3].
The State has also adopted the EIA engineer professional qualification certification system to foster a contingent of professional technicians in this field[4].

Results creating interest that are determined from this area are included, along with others, in professional publications [1], [2] and [3].
The created surface enables to wash dirty areas with a water stream, or water with detergents added.
The processibility of the reference formula in the time 0 min was stated at the dose of water in the centre of the range stated by the technical sheet – spillage of cake with the diameter 170 mm at 23 % water.
Fig. 1 Comparison of average consistence in time 0 (immediately afrer mixing – c0) and time 90 (90 min after mixing – c90), water volume (water), minimal and maximal limit of water volume (according data sheet of reference formula – water min, water max).
All analyzed formulas will be subject to a further phase of testing other important characteristics – elasticity module, absorption of water, thermal conductance, penetration of water steam, study of the microstructure, etc.

Introduction The cement mortar is the mixture of cement, sand and water.
In the industrial and civil building, it is served as building materials of projects of the pavement, plaster, and waterproof, and in water conservancy, roads and other specific professional, it is a kind of compression structure carried loads.
Meanwhile, both compressive strength and elastic modulus are up to the mass ratios of cement, sands and water.
When the mass ratio of cement, sands and water is 1:4.70:0.81, both the compressive strength and elastic modulus values are better than others, because the bonding capacities between iron wires and cement mortar are determined by the mass ratios of cement, sands and water.
(2)The mass ratio of cement, sands and water also impacts on the mechanical properties of the cement mortar, and the best mass ratio of cement, sands and water is 1:4.70:0.81

General corrosion properties of modified PNC1520 austenitic stainless steel in supercritical water as a fuel cladding candidate material for supercritical water reactor Yoshihisa NAKAZONO1, Takeo IWAI1, Hiroaki ABE2 1Nuclear Professional School, School of Engineering, the University of Tokyo 2 Material Design Division, Institute for Material Research, Tohoku University Keywords: Generation IV, Supercritical Water Reactor, cladding material, austenitic stainless steel, PNC1520 Abstract.
The increase of operating temperature and pressure as compared to current Boiling Water Reactor (BWR) and Pressurized Water Reactor (PWR) designs will make it difficult to realize the fuel cladding for supercritical water reactor.
Water in the supercritical phase exhibits that its property is significantly different from that of liquid water below the critical point.
The water gradually becomes nonpolar solvent.
But in supercritical water, the effect will be reduced.

In this example, the hydro mechanical components are thus the turbines, which are set rotating by flowing water and which drive the generators.
However, with the development of technology, electronics technology, updated file, e-portfolio research and application are not only limited to the field of education, have been extended to companies, professionals, services, public utilities, communities and other various fields in the society.
To the field of education, the e-portfolio develops from the initial portfolio assessment to its support for life-long learning and professional development.

With insufficient water resources to meet rising water consumption, over-withdrawal of both surface water and groundwater has occurred in many areas of northern and eastern China [1].
The water in this area was termed the “black water agglomerate.”
The source water in the crisis, black in color with few algae floating on the surface (Taken at the water intake on June 1, 2007).
Strengthen government capacity for monitoring and controlling water pollution;Under the guidance of the government utilize scientific research institutes and other social resources to establish capacities for assessing environmental risks from policies；According to relevant legal requirements, establish special funds in central fiscal budgets; Enhance the water pollution monitoring and supervision capacity of government at all levels and establish professional teams for emergency response.
China's water scarcity.

Initially, the finger was heated with hot water in a container, but this method was rejected because the water cooled.
The finger beds were soaked using water in a container.
After removing the finger from the water bath, it was dried with gauze and tested on the measuring panel.
Before purchasing an access biometric identification system, it is necessary to consult with professionals in the field and pay attention to the reliability of individual biometric systems.