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Although cobalt and its substitutes [2-4] are still used for professional tools, the latest trend is towards a broader application of premixed and mechanically alloyed iron-base powders [5].
Commercial spongy iron, carbonyl nickel, milled ferro-manganese, water atomised tin-bronze and synthetic graphite powders were provided by Höganäs AB, Vale, ESAB, ECKA and Timcal, respectively, and used as the starting powders (Table 1).

（2） Using active energy-saving facilities With some parts that can be opened or ventilation device on the building curtain wall ,the building can achieve natural ventilation when the environment is comparatively good ; Efficient machinery and HVAC system design and ventilation and air conditioning system; Ground source heat pump to provide energy to stand low-carbon experience centre of renewable energy utilization rate of 5.5%; The intelligent lighting system, using high efficiency and energy saving lighting source, choosing motion sensors, light sensors, roof panels, the underground garage light pipe natural lighting and other facilities; the rainwater collection system will be used in public toilet cleaning after rainwater collection, and the sanitary appliance take use of appropriate water equipment and materials facilities; take use of the Garbage , pipelines and other facilities which support with science and technology park planning, pipe and other facilities; the building also
Generally speaking, low carbon building is not only in the form of surface, it should in the professional examine ways on the effective evaluation standards, once pass the test of science that could be called low carbon buildings.

Using Untiy 3D Game Development Platform to Develop Low Cost Online Real Estate Display System Jiang-Rui1,a 1The Yellow River water conservancy vocational technical college of information engineering department ,Kaifeng ,he nan , China aidmt-4@126.com Keywords: Virtual reality technology;3D model;Material and texture;Untiy 3D platform;Low cost online real estate display system Abstract:The thermal situation in tackling the current real estate marketing cost is high, the display effect is poor, the purpose of effective communication problems such as less crowd, put forward using Untiy 3D game development platform to develop low cost online estate system method.Starting from the relevant concepts, mainly introduced how to make use of the existing 3D model technology, image processing technology, as well as Untiy 3D game development platform integration technology and so on the many kinds of virtual reality technology, complete the system, finally solve the relevant problems in real
Virtual reality is used computer simulations to create a 3d virtual world, to provide users simulation about senses such as vision, hearing, touch, let users as illustrates its general, timely, there is no limit to observe things in three dimensions. 1.2 Untiy 3d game development platform Unity is a developed by Unity Technologies allow players to easily create such as 3d video game, architectural visualization, real-time 3d animation and other types of interactive content multi-platform integrated game development tool, is a comprehensive integration of the professional game engine.Unity is similar to the Director, the Blender game engine, Virtools or the Torque game Builder and other interactive pattern to make use of the software development environment as the primary way the editor running under the Windows and Mac OS X, can release the product to Windows, Mac, Wii, iPhone and Android platform, support for Mac and Windows web browsing. 1.3 low cost online real estate display system

Range Particle Algorithm Application in the Solving Inverse Problem of Line Source YU Ke-guang Institute of Engineering and Computing Zhejiang Water Conservancy and Hydropower College Hangzhou, China yukg@zjwchc.com Keywords: component; inverse problem of line source ;numerical solution; range particle algorithm (RPA); experimental analysis.
The computing platform: the operating system are Windows XP Professional Service Pack 3 and VC6.0 programming platform, the hardware are Inter (R) Pentium (R) 4 CPU 2.93GHz, 512MB RAM, the calculation result will be discussed in the following.

Architecture of Knowledge-Based Environmental Information System Expert systems is a knowledge management technology has been applied to environmental management problems as, for example, in using expert systems advising emergency response teams about how to deal with industrial accidents, in using expert systems to assist in granting hazardous waste site permits, in modeling water quality, fish stock prediction, and many other environmental engineering applications[8] .
GIS Database Environmental Database Environmental Information System User Interface User Inference Engine Explanation Facility Update Facility Knowledge Base Knowledge Acquisition Expert Fig.1 Architecture of knowledge-based environment information system The expert is the person that has professional knowledge in a wetland certain domain.

The lights increased in number and they achieved the high degree of professional proficiency in the function, style, structure, decoration and manufacturing techniques.
The birds in the sky, the animals on the land, the fish in the water, except the various personal figures, were all used by the light artisans as the design models, which were very lifelike and superb.

According to the essential characteristics of these factors, people scientifically determine the construction area, design rational building types according to local conditions, use construction materials less interference on the surrounding ecological environment, reduce the destruction and pollution of water resources, consider the full range of architectural landscaping and reduce energy consumption, so that minimize the impact of natural factors brought by these buildings.
In solar building design, architect play a commanding role in coordinating the various professional parts, playing to their strengths and combine the building design and solar energy application technology organically; application of solar technology in architecture and urban planning can have a perfect balance of aesthetics and technology, achieving a relatively sound ecological building system.

The system has done weights distribution on five a assessment content, that energy and atmosphere accounted for 27%, and indoor environment quality accounted for 23%, and can continued of venues design accounted for 22%, and raw materials and resources for 20%, and efficient use of water resources in the 8%.
The qualitative description of indicators: General requirements for expert or an experienced professional, user-experience to judge then algorithm of the fuzzy comprehensive evaluation of processing, such high and low scores are not based on targets more difficult to judge, but according to energy, the environment, the ecological impact of scoring.

At the completion of the examination of the professional quality of the construction units, the focus should be put on the verification of design in construction units.
If roadbed is subsident and crazed, it is deducted 2 to 5 points Drainage engineering 1.Drain inside and bottom should be smooth with no water resistence, and the lateral with no pavement, if it does not conform to the requirements, every place is deducted 1 to 2 points. 2.

So tourism industry is a combining industry, which provides fragmented products and will affect many other sectors of the economy, such as, transportation facilities, water supplies, sewerage systems and retail functions.
In order to develop tourism industry, the national government and local government will adopt some support and help for the host community, which includes providing special subsidies and funds for tourism professional introductions, tourism training, social insurance, interest of small-amount loans for tourism, etc.