稠油油溶性降粘剂降粘机理研究

目前，稠油油溶性降粘荆被认为是解决稠油开采和输送问题最有前途的方法。本文讨论了捌油高粘的内在根本原因，并通过加荆前后对稠油粘温曲线的对比、透射电镜图像的对比以及DSC曲线的对比，分析稠油加荆前后微观结构上的变化，进一步提出了油溶性降粘荆的降粘机理。     

A Ray-Tracing Analysis of ICRH in Tokamaks

Power deposition profiles generated by Ion Cyclotron Resonance Heating （ICRH） in non-circular tokamaks are studied using a ray-tracing technique. The simulation results for the Experimental Advanced Superconductor Tokamak （EAST） D-shaped plasma are presented. It is indicated that the spatial distributions of plasma parameters （plasma density, species temperature, minority ion concentration, etc.） have an significant influence on the power deposition profiles. The findings may be highly useful to the planned plasma heating and experiments in EAST.     

用新模型综合评价油田开发效果的探讨

针对目前各种评价方法常用最大隶属度识别准则不适用性及权重确定问题，在对模糊层次评判和未确知测度模型研究的基础上，以兼顾主观偏好和客观信息的综合赋权法为依据，提出将合理反映主观认知程度的层次分析法和客观反映指标重要性的相似权二者结合起来，通过偏好系数科学合理的确定出评价指标权重，然后尝试用模糊评判模型对油藏进行评价、排序，以标准区间值识别准则代替最大隶属度识别准则，减少误判。该评价方法首次应用于某油区低渗透注水油藏的评价，取得了较好效果。与灰色聚类分析等评价模型比较，具有权重确定合理、识别合理的优点，提高了开发效果综合评价的可信度，对其他驱动类型的油藏开发效果评价具有一定的借鉴作用。     

论自治区石灰行业的发展

石灰又称生石灰,主要成份是氧化钙(CaO),应用领域广泛,涉及冶金、化工、建材、耐火材料及环保工程等行业。内蒙古的石灰石品位较高,含杂质少,CaO含量高、MgO含量低的石灰石特别适宜于生产电石用原料石灰。但石灰厂生产规模较小、生产工艺简单落后,企业产品单一,在激烈的市场竞争中,竞争力不足,难以应对市场。怎样才能使其顺应市场的发展趋势,取得较大的经济效益,成为我区的特色龙头企业,带动区域经济的发展。本文以鄂托克旗为例,对此问题阐述了自己的观点。     

三塔悬索桥的结构体系及抗震性能研究

与通常采用的双塔悬索桥相比,三塔悬索桥因中间桥塔缺乏有效的纵向约束而导致结构整体刚度的下降,在地震作用下结构的动力反应问题可能会更加突出.以已建成的1 080m主跨的三塔双跨悬索桥-泰州长江公路大桥为工程背景,利用MIDAS/CIVIL有限元软件对其抗震性能进行分析,揭示了三塔悬索桥抗震性能的特点,在此基础上进行了主缆矢跨比、中塔刚度以及主梁约束方式等主要结构设计参数对大跨度三塔悬索桥地震反应的影响分析,并从抗震性能角度提出大跨度三塔悬索桥适宜的结构体系.研究结果表明:大跨度三塔悬索桥横桥向地震反应非常显著,尤其是边塔,因此应重视结构的横桥向和边塔的抗震性能.采用较大的矢跨比、柔性的中塔、中塔与主梁之间设置弹性索都可以有效地提高大跨度三塔悬索桥的抗震性能.     

用内充气正比计数管准确测量~(131)Xe~m活度浓度

~(131)Xe~m、~(133)Xe~m、~(133)Xe和~(135)Xe是全面禁止核试验条约(Comprehensive Nuclear-Test-Ban Treaty,CTBT)监测地下核试验最重要的核素。氙同位素活度通常采用HPGeγ能谱法和β-γ符合法等相对方法测量,准确刻度测量系统的探测效率是氙同位素活度准确测量的关键。本文介绍了用内充气正比计数管系统通过长度补偿法准确测量~(131)Xe~m活度浓度的方法,~(131)Xe~m活度浓度测量结果为(1.75±0.01)Bq·mL~(–1),为相对测量系统的探测效率刻度提供了活度标准。     

Recent ICRF coupling experiments on EAST

Recent ion cyclotron resonance frequency(ICRF) coupling experiments for optimizing ICRF heating in high power discharge were performed on EAST. The coupling experiments were focus on antenna phasing and gas puffing, which were performed separately on two ports of the ion cyclotron resonance heating(ICRH) system of EAST. The antenna phasing was performed on the I-port antenna, which consists of four toroidally spaced radiating straps operating in multiple phasing cases; the coupling performance was better under low wave number ∣k_‖∣(ranging from 4.5 to 6.5). By fuelling the plasma from gas injectors, placed as uniformly spaced array from top to bottom at each side limiter of the B-port antenna, which works in dipole phasing, the coupling resistance of the B-port antenna increased obviously.Furthermore, the coupling resistance of the I-port antenna was insensitive to a smaller rate of gas puffing but when the gas injection rate was more than a certain value(1021 s~(-1)), a sharp increase in the coupling resistance of the I-port antenna occurred, which was mainly caused by the toroidal asymmetric boundary density arising from gas puffing. A more specific analysis is given in the paper.     

Thermal analysis and optimization of the EAST ICRH antenna

The ion cyclotron resonance of frequency heating(ICRH) plays an important role in plasma heating.Two ICRH antennas were designed and applied on the EAST tokamak.In order to meet the requirement imposed by high-power and long-pulse operation of EAST in the future,an active cooling system is mandatory to be designed to remove the heat load deposited on the components.Thermal analyses for high heat-load components have been carried out,which presented clear temperature distribution on each component and provided the reference data to do the optimization.Meanwhile,heat pipes were designed to satisfy the high requirement imposed by a Faraday shield and lateral limiter.     

试论新疆地区风能资源的估算及风电规划

风能资源作为重要的气候资源,与石化燃料等不可再生资源相比具有清洁、可再生的优势,为此风能是最具潜力的绿色替代能源。文章从风能资源估算入手,重点的论述了新疆地区风能资源的估算,并在最后简述了风电规划。