2014年初至11月11日，家电行业指数上涨14.8%，位于29个一级行业倒数第四。行业个季度表现均弱于2013年，其中以白电走势最弱。在GDP增速下行，地产投资减速癿趋势下，2015年需求难有实质性好转；基本面戒将呈现前低后高癿走势。信息化给家电行业持续提升盈利能力和构筑新壁垒提供了新癿机遇，在产品研収、生产、销售和服务环节都存在可以优化癿空间，转型难点在于新商业模式构建而非技术。

关键词：家电行业；2015年；投资策略

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MRI is an imaging technique that creates detailed images of the organs and tissues of the body with the help of a magnetic field and radio waves. It does not use ionizing radiation either for diagnosis, or for the study of brain function or cancer growth.

关键词：核磁共振；影像系统；MRI

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Defibrillators are cardiovascular devices that deliver therapeutic doses of electrical energy in the form of electric shocks to the heart muscles to restore the heartbeat to a normal rhythm.

关键词：除颤器；心血管；电震发生器

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关键词：电池技术；进展汇总

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关键词：石墨烯；导热塑料；LED灯具；散热材料

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A VFD is a type of motor controller that controls the motion of a motor by varying the frequency and voltage supplied to the motor. VFDs are also known as variable speed drives, adjustable speed drives, adjustable frequency drives, AC drives, microdrives, or inverters. Drives are classified into two broad categories based on technology: AC drives and servo drives. Drives are widely used in the Manufacturing industries to regulate and control fans, conveyors, machine spindles, and pumps during the production process.

关键词：VFD；电动机；控制装置；改变频率；控制电机

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Power systems are used in all telecommunication installations. These systems are made up of a combination of smaller systems such as converters, distributors, controllers, and backup systems that are available with different technical specifications. These systems offer DC and AC backup for various indoor and outdoor applications. The primary applications of telecom power systems is in wireless and fixed-line environments. Moreover, they are also used in several other related applications including network equipment, xDSL terminal s, mobile broadband, cellular sites, and transmission applications. Hence, these systems are used effectively for controlling, monitoring, and measuring the flow of power across the telecom network.

关键词：动力系统；电信设施；转换器；分配器；控制器；测量功率

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A greenhouse heating mode was proposed in this paper in order to reduce energy consumption and increase the efficiency of heating system for greenhouse.Considering experimental greenhouse practical operating conditions and various environmental factors, a warm air heating system, with heat source of biomass boilers, end heat abstractor of fan coils, was designed and some winter heating experiments was conducted.With the CFD method, the modelling of thermal environment inside the greenhouse in winter night was realized, temperature variation and distribution was simulated by STAR-CCM+.The simulation results were compared with experimental temperatures at the key positions in the greenhouse, and indicated that temperature errors of the monitoring points were less than 2K, relative error less than 8％, calculated root-mean-square error was 0.47K.Thus the validity of proposed model was certified.

关键词：载荷及温室;温度分布;实验研究;数值模拟

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关键词：中国；锂电子电池；规模扩大

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The upper operating temperature of tubes in heat exchangers/steam generators is strongly influenced by the degradation that can occur because of the reaction of the exchanger/generator tubing with the deposits that accumulate on the surface of the tubes. In fact, severe corrosion has been observed in some biomass fired systems, particularly with elevated potassium and chlorine concentrations in the deposits. Wood gasifiers have recently been and are currently being constructed at several sites in North America. In these systems, the syngas is burned to produce steam and the performance of the heat exchanger tubes under ash deposits is of great concern. As temperatures of the heat exchangers are increased in an effort to increase their operating efficiency, the performance of the tubes is of greater interest. The corrosion behavior of alloy steel tubes as a function of temperature has been investigated by exposing samples of selected alloys to ash collected from the steam generator fired by syngas produced in wood gasifiers. This study compares corrosion rates from laboratory exposures of synthesis gas and ash at 500 degrees C and 600 degrees C.

关键词：腐蚀,锅炉管;木材;气化灰;合金;生物量;换热器;蒸汽发生器;合成气

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