对一起民航专用频率干扰的查处与思考

1迅速查找干扰2008年10月17日上午,河南省周口市无线电管理处接到河南省民航空管中心投诉,称民航航班无线电专用频率在周口市上空受到严重干扰,干扰信号为常     

Physics Analysis and Optimization Studies for a Fusion Neutron Source Based on a Gas Dynamic Trap

To further investigate the fusion neutron source based on a gas dynamic trap （GDT）, characteristics of the GDT were analyzed and physics analyses were made for a fusion neutron source based on the GDT concept. The prior design of a GDT-based fusion neutron source was optimized based on a refreshed understanding of GDT operation. A two-step progressive development route of a GDT-based fusion neutron source was suggested. Potential applications of GDT are discussed. Preliminary analyses show that a fusion neutron source based on the GDT concept is suitable for plasma-material interaction research, fusion material and subcomponent testing, and capable of driving a proof-of-principle fusion fission hybrid experimental facility.     

基于GDT的14MeV中子源初步设计研究

为满足聚变材料测试对D-T聚变中子源的需要,本文首先根据国际上对用于聚变材料测试的中子源的要求给出设计目标,然后基于Gas Dynamic Trap(GDT)装置的实验进展,提出了基于GDT装置的14MeV中子源的设计初步方案,并建立了GDT中子源的物理模型。计算分析给出了两套中子源参数初步方案,其中FDS-GDT2中子壁负载为2MW/m2,可用于聚变材料的测试。     

Kinetic equilibrium reconstruction for the NBI-and ICRH-heated H-mode plasma on EAST tokamak

The equilibrium reconstruction is important to study the tokamak plasma physical processes.To analyze the contribution of fast ions to the equilibrium,the kinetic equilibria at two time-slices in a typical H-mode discharge with different auxiliary heatings are reconstructed by using magnetic diagnostics,kinetic diagnostics and TRANSP code.It is found that the fast-ion pressure might be up to one-third of the plasma pressure and the contribution is mainly in the core plasma due to the neutral beam injection power is primarily deposited in the core region.The fast-ion current contributes mainly in the core region while contributes little to the pedestal current.A steep pressure gradient in the pedestal is observed which gives rise to a strong edge current.It is proved that the fast ion effects cannot be ignored and should be considered in the future study of EAST.     

基于GDT的聚变裂变混合堆堆芯参数初步设计研究

基于Gas Dynamic Trap(GDT)装置的实验进展,提出了用于驱动聚变裂变混合堆包层的聚变堆芯参数设计。基于零维堆芯物理模型,计算分析给出了一套聚变功率为50MW的初步堆芯参数方案。利用GDT装置的实验结果对该物理模型进行计算对比校验,显示该物理模型和设计参数的可靠性。     

Evaluation of NBI absorption and fast ion stored energy to improve thermal energy confinement time calculation in EAST

The absorption of neutral beam power and the fast ion stored energy in EAST plasmas with neutral beam injection(NBI)is analyzed to improve the calculation of thermal energy confinement time.The neutral beam power absorption and fast ion stored energy are systematically calculated using the TRANSP code,through the investigation of global parameters including plasma current,line averaged density and beam energy.Results have shown that scaling laws for the NBI absorption coefficient and fast ion energy rate are obtained through statistical analysis.A comparison of the confinement improvement factor H98y2 with these new scaling laws against those assuming fixed coefficients is given.     

hepaCAM基因重组腺病毒质粒的构建及鉴定

目的构建表达肝细胞黏附分子(Hepatocyte cell adhesion molecule,hepaCAM)基因的重组腺病毒质粒,并进行鉴定。方法以质粒pEGFP-N2-hepaCAM为模板,PCR扩增hepaCAM基因,克隆至腺病毒穿梭质粒pAdtrack-CMV上,经酶切、PCR及测序鉴定正确后,将重组腺病毒穿梭质粒pAdtrack-CMV-hepaCAM经PmeⅠ线性化,转化至含腺病毒骨架质粒pAdEasy-1的感受态大肠杆菌BJ5183中进行同源重组。重组腺病毒质粒pAdEasy-1-hepaCAM经PmeⅠ线性化后,转染HEK-293细胞,包装重组腺病毒AdI-hepaCAM,经大量扩增后,检测病毒滴度。RT-qPCR及Westernblot检测感染的BIU-87细胞内hepaCAM的表达。结果酶切鉴定证实重组腺病毒质粒pAdEasy-1-hepaCAM构建正确,重组腺病毒AdI-hepaCAM滴度可达1.6×1012pfu/ml,与空载体腺病毒组比较,经重组腺病毒感染的BIU-87细胞中hepaCAM mRNA及蛋白的表达均明显升高(P<0.05)。结论已成功构建携带hepaCAM的重组腺病毒载体AdI-hepaCAM,为研究hepaCAM基因对膀胱癌细胞增殖的调控提供依据。     

坚持依法行政实施综合治理——周口市开展打击违法设台专项活动纪实

河南省周口市地处河南豫东平原．是一个拥有上千万人口的农业大市．无线电行政管辖区共有10个县（市、区）、2个省辖农场和1个经济技术开发区。近年来．随着经济发展．周13市各类无线电台（站）数量不断增加,各类无线电业务广泛开展,成为全市经济、社会、文化全面发展的重要推动力之一。但与此同时,违规使用频率、非法设台现象呈现上升趋势,特别是去年下半年以来,各类干扰投诉和举报数量明显增加。