查询词典 indoor antenna

And has brilliant prospect due to its simple structure, good economy and energy saving performance.Based on the full scale passive solar experimental building in DUT, in which the researcher carried experiment as the main method and the CFD simulation as the minor method, the research focuses on passive ventilation formed by the Trombe wall. This paper analyzed the indoor thermo and humidity performance of passive solar building with Trombe wall, and the different ventilation patterns in different seasons, revealing the role of passive ventilation in improving indoor environment. Also the paper researched the characteristics of passive ventilation on air flow and heat transfer mechanicsms, and put forward the best control and adjusting method. Meanwhile the paper gained an empiric formula in use of calculating the natural convection heat transfer and found the key factor of influing the indoor environment.

本研究以被动式采暖降温技术为依托，采用实验和CFD数值模拟的研究方法，重点研究了新型被动式太阳房在不同气候条件下室内热湿环境的动态变化规律，分析不同季节下被动式太阳房内不同的被动式通风模式以及不同被动式通风模式在改进室内热湿环境方面的作用：揭示了特定被动式通风流动和换热特性、控制与预测方法；得到了计算被动式通风对流换热量的经验公式以及影响室内热湿环境的关键因素；了解了含有特朗贝墙体被动式太阳房的自身优势和仍待改进的方面；在实体大被动式太阳房实验技术方面积累了一定的经验。

Based on a computing model of floor heating residences, indoor thermal environment and heat distribution under the effect of heat charge/discharge, operation control and solar radiation has been concluded. Concept and formula of equivalent heat supply has been put forward which indicate that actual heat supply will be equal to the sum of design heat supply and equivalent heat supply. Recommend coefficient has been given taken Dalian as an example. Computed according to the new method, design heat supply can be reduced to 37% in cloudy day and 43.3% in sunny day, energy saving effect is very obvious. In Tromb wall solar house, effect of concrete wall on indoor temperature swing and attenuation of temperature wave is very obvious. While the outdoor air-temperature swing exceeds 10℃, indoor air-temperature swing belows 3℃. In the experiment, maximal difference in temperature between inner surface and outer surface of the 300mm wall exceeded 10℃. Heat storage and collector efficiency varies adversely according to solar radiation. Factors such as thickness, material, absorptance of the wall and permeation of the glass cover all have big influence on heat storage and collector efficiency. There exsisted an optimal thickness of the wall, which can make the best of heat storage and collector efficiency. Most of the heat stored in conventional Trombe wall during the daytime has been lost to the outside at night without heat preservation. Heat preservation on the outside surface of the wall has effectively improved heat release performance of the wall at night, heat supply to the room has increased too.

通过建立的地板采暖系统动态热性能分析模型，得出了在蓄放热特性、运行方式和太阳辐射等因素耦合作用下的室内热环境及热量分配比例，提出了等效供热量的概念及计算公式，指出实际所需供热量应等于设计供热量加上等效供热量，并以大连为例，给出了等效供热量的修正系数，以新方法计算，阴天可减少设计供热量37％，晴天最大可以减少设计供热量43.3％，节能效果显著；集热蓄热墙式太阳房中，混凝土蓄热墙的室温均一化效果和对温度波的削减作用非常明显，当室外温度波动最大幅度超过10℃时，室温波幅不超过3℃，实验中300mm厚墙体内外表面温差超过10℃；墙体蓄热效率与集热效率随太阳辐射照度的变化呈相反的变化趋势；墙体厚度、材料、表面吸收率以及盖板透过率等因素对集热和蓄热效率均有较大的影响，存在一个最佳的墙体厚度值，使得墙体集热和蓄热综合性能最优；传统的蓄热墙夜间没有外保温，辐射散热损失很大，研究表明墙体外保温方式明显改善了蓄热墙夜间的散热性能，增加了向室内的供热量。

With consider of characteristic of indoor Pollution and influence of the health of human body by excessive pollutive factor value.under the foundation of environmental quality evaluation technique, apply the concept of the indoor air evalation of quality to pollute the comprehensive evaluation index of factor, reflect the influence of indoor air contaminant for the health of human body.

考虑到室内环境空气污染的特点和超标的污染因子值对人体健康的影响作用，在环境质量评价方法的基础上，应用室内空气综合质量评价的概念，以污染因子的综合评价指数反映室内空气污染物对人体健康的影响程度。

Through the survey: 90% of indoor dust from shoe soles and tire into the rotation, thus causing indoor pollution, and must now, more and more people are aware of indoor cleaning, clean, but the essential function of the entrance of dust.

通过调查显示：室内灰尘90%是由鞋底和转动的轮胎带入的，从而造成室内环境污染，绝现在，越来越多的人意识到了室内清洁，干净，然而门厅的除尘功能必不可少。

And the possible reasons for high indoor VOC levels are due to the low air exchange rates between the indoor and outdoor environment as a result of tight-shut windows and the increasing use of humidifiers to keep the indoor air moist.

如此高浓度挥发性有机物水平的原因很可能在于使内外空气环境不流通，窗户关得紧紧的，增湿器使得室内空气潮湿。

It is concluded that when a small solid angles range adjacent to the main direction in the far field is considered, the parallel beams combining of compact antenna arrays has its priority if the phases can be controlled, and the parallel beams combining of sparse antenna arrays has its priority if the phases can not be controlled.

分析表明：当关注的是远区主方向邻近的小立体角区域时，若能做到控相激励，宜采用紧凑阵的平行波束合成；若不能控相，宜采用稀疏阵的平行波束合成。

The antenna is a necessarily important component in Radar system,whose stealth is a problem that puzzled the technology researchers all the while.The flight vehicle needs antenna to find its aim when reentering the aerosphere,and it also needs the protection by radome at the same time.

天线是雷达系统中必不可少的重要组成部分，其隐身是一个长期困扰着工程技术人员的问题，飞行器再入大气层时需要靠雷达天线来搜寻目标，雷达天线则需要天线罩来保护。

As these clamps are plastic, they will not interfere with the operation of the antenna, while all-metal mounts placed in the radiation pattern could affect the operation of the antenna.

因为这些卡子是塑料的，所以它们不会对天线造成干扰，而所有金属托架都会影响天线的辐射。

According to the theory of electromagnetic field and the theory of error a nalysis,the far field condition for antenna test is discussed,the influence of limited test distance on antenna far field measurement in a microwave anechoic chamber is analysed, and the error model is established.

利用电磁场和误差分析理论，在阐述天线远场测量条件的基础上，分析了微波暗室有限测试距离对天线远场测量的影响，建立了误差模型，并结合实例说明了微波暗室有限测试距离对天线场强测量、增益测量的影响。

First, the basic tracking laws of the user satellite s satellite-satellite antenna are deduced and according to several different conditions, the expressions for the azimuth angle and elevation angle of the satellite-satellite antenna are revised.

针对几种情况，并考虑地球的隔断影响和天线的自身限制，对星-星天线的方位角和俯仰角表达式进行了修正和补充。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48