Through the research on the fire burning in an atrium used as accoutrement mall, it is found that the impact of venting rate, make-up air inlets" positions and make-up air flux on a fire growth is comparatively great. At one time it is indicated that in the beginning phase a fire in an accoutrement mall is "linear and undulate" fire in terms of gravity ventilation. Whereas, it is "fire in terms of mechanical ventilation.

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This system can be surveyed in early days to the fire and autoalarm, can output and link the signal of putting out a fire in time according to the position of condition of a fire , start corresponding fire controls facility, put out a fire .

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After years of development, the product has 100 from monotony to diversification, seriation, fire hose, interior lining gun, fire hydrant, dc interface, fire hydrant box, reel, fire extinguisher box, outdoor fire hydrant, fire pump flow indicator, connectors.it, wet alarm valve, drench alarm valve, gate valve, signal, the signal is antivirus mask, air respirator, spraying nozzles, safety and emergency lights, explosion-proof lamp, floor drain etc categories of hundreds of specifications of products widely used in telecommunications, civil aviation, power, industry and real estate industry and other industries, experienced the test of time, market and the approval and favorable comment from user deeply.

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Fire electronic products through national product quality supervision and test center for testing; through the national fixed fire extinguishing systems and fire Component Quality Supervision, Inspection and testing centres; through the ISO 9001:2001 international quality system certification; main products: General shutter doors, electrical, fire shutter doors electrical, fire prevention Shutter door controller, infrared far-gun fire.

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Civil refractories: acoustic noise muffler cotton, blankets, plates; fire door sandwich panel; fire shutter door; fire fire-extinguishing blanket; isolate the fire zone; fire service materials; fireplace and wood-lined; other civilian temperature heterotypic pieces of paper processing; wear-resistant materials.

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The research and development trends of wood fire retardants were predicted as follows:① Wawer-borne P-N-B fire retardant still will be the mainstream products in a long time, and the problems to be resoled will be the increasing durability and decreasing cost;② one of the main development trends of wood fire retardants will be the composition with multi-effects;③ research on smoke inhibiting;④ research and development of new fire retardant systems;⑤ fire retardants for thermo plastic-wood composites;⑥ development of environmental friendly fire retardants for wood.

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The four models were analyzed and normalized. We studied the procedure and method of building forest fire model base. Model base was build by object-oriented method based on category of model. Forest fire spreading models algorithm were implemented. We designed model dictionary base, model file base, and model knowledge base. Model base administration and maintenance functions were developed and implemented model file management, parameter management and knowledge management. The problems of interface between of model base and database were solved by means of model data control files. Model base ensured the availability of supporting for forest fire model suitability selection technology and forest fire model self-adapting updating technology.(3) Based on BP artificial neural network, we designed a frame construction of forest fire model selection of suitability. Forest fire model selection knowledge was produced through BP artificial neural network.

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Dynamic smoke aerosol of five European standard test fire,including open wood fire(TF1),smoldering cotton fire(TF3),polyurethane fire(TF4),N-heptan fire(TF5),and methylated spirits fire(TF6),was measured by Scanning Mobility Particle Sizer Spectrometer,and smoke particle size distribution and particle number concentration were recorded and analyzed for studying the smoke dynamic coagultion effect.

結(jié)果表明，在火災(zāi)探測器做出響應(yīng)之前亚洲人妻中文，正庚烷明火的煙顆粒粒徑主要分布在100~500 nm亚洲超清黄色视频在线观看，木材和聚氨酯明火及棉繩陰燃的是50~400 nm。

Dynamic smoke aerosol of five European standard test fire,including open wood fire(TF1),smoldering cotton fire(TF3),polyurethane fire(TF4),N-heptan fire(TF5),and methylated spirits fire(TF6),was measured by Scanning Mobility Particle Sizer Spectrometer,and smoke particle size distribution and particle number concentration were recorded and analyzed for studying the smoke dynamic coagultion effect.

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