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PbWO4 and CeF3 which are newly developed inorganic scinti1latr in our country have been studied. Photo-electricity detector systemes which have high γ sensitivity and relative insensitive to neutron and fast time response were assembled by using CeF3 and photomultiplier tube. The ratio of signal-to-noise for γ ray detection can be up to more than 10 times in close distance n,γ commix pulse radiation field by using this detector system.

对PbWO4和CeF3等近年国内新研制的无机闪烁体进行了系列研究,使用CeF3分别配光电倍增管和光电管,组合出了对γ辐射灵敏度高,对中子相对不灵敏,同时脉冲响应也快的光电探测系统,应用以此为基础的探测技术在近距离n,γ混合脉冲辐射场中,可将脉冲γ辐射探测信噪比提高一个量级以上。

Proton events in general only occur in SAA region while electron events appear at both SAA and polar regions.Electron flux of 0 5~2 0?MeV in polar regions is dominant over that of 2~15?MeV,while at SAA,fluxes from the two channels are about the same.There is a close correlation between energetic particle radiation inside and outside the satellite.

与现有理论模型和国外大致相同轨道上的空间高能辐射环境直接观测资料对比还表明,卫星舱内的辐射与舱外的空间辐射环境是完全相关的,积累的有关资料不但是航天设计和环境应用研究所需的重要参量之一,也是空间物理基础研究特别是辐射带研究的重要数据。

The numerical method of the diffusive-gray enclosure radiation heat transfer in complex geometry was studied, and its application was introduced into these two processes to improve the quality of handsaw and single crystal.

复杂结构的辐射换热计算所遇到的主要问题是:结构复杂导致计算量巨大;辐射角系数的计算因遮挡或数值计算误差而难以满足对称性和完整性,从而导致辐射换热计算不准确。

The surface southeast wind is a condition for the generation of advection fog, but it contributes to the disappearance of radiation fog. The inversion in the radiation fog is thick and strong ,but it is weaker or no inversion in the advection fog. The evolution of stratification from the occurrence to the destruction in the radiation fog is from stable to unstable, while the advection fog from unstable to stable.

底层东南风是平流雾生成的条件,却对应于辐射雾的消亡;辐射雾逆温厚而强,平流雾则为弱的逆温或无逆温;辐射雾生消演变对应于大气层结由稳定发展为不稳定,平流雾则对应于由不稳定趋于稳定。

By comparison between SMM HXRBS observation and ground observation of Hα and CaIIK lines, especially through the combined study between SMM HXRBS observation and chromospheric flare models, the results show that: in the initial stage of impulsive phase, there is a correlative relation betweem Hα line intensity and hard X-ray emission; different spike in hard X-ray flux curve represents the burst at different location; the energy taken by non-thermal electron beam is larger than the radiative loss in chromosphere; for the flare studied here, the chromospheric evapporation is explosive; if the chromosphere is in balance between electron beam bombardment and radiative loss, the column mass density at the top of chromospheric flare model can not be taken as measure from the source of electrons and then the total material between the source of electrons and the top of chromosphere can be estimated.

通过一个具体耀斑的SMM HXRBS观测结果与同时基于地面得到的Hα和CaⅡK可见光谱观测结果对比,特别是将硬x谱观测结果与色球半经验模型联立研究,结果显示出:在脉冲相上升段,硬x发射与Hα辐射之间存在对应关系;硬x线光变曲线中不同脉冲爆发分量不太可能起源于同一位置;硬x辐射所反映的高能非热电子总携带能量大于色球总辐射损失;对所研究的耀斑而言,其色球蒸发过程是爆发性的;在详细比较了非热电子色球总沉积和色球辐射损失的基础上,指出半经验模型中色球顶部柱数密度不能看成是从非热电子源度量的,从而估计了色球顶部到非热电子源之间的总物质。

The reaction has been drawing increased attention in that the reaction permit the use of organoboron compounds that are thermally stable and inert to water and oxygen.In this section microwave promoted Suzuki reaction of Sodium tetraphenylborate (NaBPh4) with carboxylic anhydrides catalyzed by Pd(PPh3)2Cl2 in THF was first reported.

第二章:微波辐射下Pd配合物催化NaBPh_4与羧酸酐的偶联反应研究本章中我们在微波辐射条件下,研究了PdCl_2(PPh_3)_2催化NaBPh_4与羧酸酐偶联反应,合成出了十种不对称芳酮,并分别考察了微波辐射功率、辐射时间、溶剂和原料配比等因素对反应的影响,优选出了较佳的反应条件,并根据文献及实验结果,讨论了可能的反应机理。

Firstly, we research the Vlasov antenna with reflector mainly. A new method to calculate the radiation of the antenna is founded with Vectorial Theory of Diffraction, and the corresponding program is made. The reflective characters of Vlasov antenna are studied with Moment Methods, and the results show that the total reflected energy is less than 0.25%. The radiation patterns of the antenna are analyzed, and the formulas to estimate the wave beam parameters and to design the antenna are provided. The feasibility of radiating high-order modes by Vlasov antenna is also discussed and verified. The hermetization of the Vlasov antenna is researched and the results show that with such kinds of hermetization the antenna can work under gigawatt level. The design of the mode converter from TEM to TMoi is studied, which is useful when the TEM coaxial mode is radiated by Vlasov antenna. At last, the flared-end Vlasov antenna is also discussed.

在Vlasov天线方面:用矢量绕射理论建立了天线辐射场的计算模型并编写了计算程序,该程序计算结果在主瓣上与实验测量吻合良好,近旁瓣也基本一致;利用矩量法计算了天线的反射系数,表明该天线有较小的反射,总的能量反射小于0.25%;详细分析了天线的辐射特性,给出了天线辐射波束相关参数的估算公式和天线设计公式;进一步研究和论证了Vlasov天线辐射高阶轴对称模的可行性;对天线的密封方式和功率容量进行了讨论,结果表明在不需很大密封罩的情况下可以获得GW级的功率容量;为了用Vlasov天线辐射同轴TEM模,研究了TEM-TM_(01)模式转换器的设计,得到了一些基本规律;最后,介绍和分析了带有锥形喇叭的Vlasov天线。

Geothermal heating Profile Geothermal heating, or to warm, is not higher than 60 degrees Celsius temperature of hot water or heating cables, Buried in the floor under the geothermal system, heating coil of the ground, evenly through the ground to a kind of indoor heat radiation heating methods.

地热辐射采暖简介地热辐射采暖,简称地暖,是将温度不高于60摄氏度的热水或发热电缆,暗埋在地热地板下的盘管系统内加热整个地面,通过地面均匀地向室内辐射散热的一种采暖方式。

The main contents of the present paper include: 1、The mechanism of fouling accumulation and the effects of fouling and slagging on boiler performance are analyzed. The model of fouling increasing is developed on the basis of sediment rate and denudation rate. The fouling monitoring models for boiler furnace and convective sections based on heat balance, the ones for air heater based on converted pressure difference are given. The implement results show that these models can reveal the cleanliness of boiler heat transfer surface. 2、The disadvantages of the model for boiler furnace fouling and slagging monitoring based on heat balance are discussed, and the calculation of radiant heat flux is considered as the primary difficulty.

主要包括以下内容: 1、分析了锅炉受热面污染形成的机理,从灰污的沉积率和剥蚀率角度出发,推导了受热面灰污增长的基本模型,分析了灰污热阻随积灰时间和烟气流速变化的规律,并通过大量现场试验,得到了沉积常数与时间常数的取值范围; 2、针对炉膛、对流受热面和空气预热器等不同受热面的传热特性,分别建立了基于热平衡和折算压差的污染在线监测模型,经实践验证,其监测结果能够满足现场工程应用的精度要求; 3、分析了基于热平衡原理的辐射、半辐射污染监测模型的不足之处,指出了机理模型因对炉内辐射换热量计算不准确,导致对以辐射换热为主的炉膛和以半辐射半对流的屏式过热器监测效果不够理想。

Guangzhou City in Lilongwe cabinet factory as the development of a new cabinet plate, He has a way of overcoming the marble of the radiation, Fanchao not waterproof and moisture-proof plate issue, with the following characteristics: 1, waterproof moisture-proof, 100% waterproof, available Direct water rinse. 2, anti-Chongzhu: no need for cockroaches, termites are worried about the invasion. 3, non-toxic pollution-free: non-radiation, formaldehyde and other harmful substances. 4, Naisuan Jian: The acid-base solution flushing are not impaired. 5, high-intensity long life: and moisture-proof material such as plate compared to the use of time can be increased more than five times. 6, a good process: the use of ordinary woodworking tools can manufacture.

广州市万利隆厨柜厂最新开发出一种新型厨柜板,他很好地克服了大理石的辐射,返潮和防潮板不防水问题,具有如下特点:1,防水防潮,100%防水,可用水直接冲洗。2,防虫蛀:不必为蟑螂,白蚁的侵袭而担心。3,无毒无污染:不含辐射,甲醛等有害物质。4,耐酸碱:用酸碱溶液冲洗不会受损。5,强度高使用寿命长:与防潮板等材料相比,使用时间可提高5倍以上。6,良好的加工性:使用普通木工工具就可以加工制作。

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