沪杭高铁WCMDA网络测试分析及建设要点探讨

高铁覆盖建设对WCDMA网络有重要意义。根据高铁覆盖建设的特殊性,分析了沪杭高铁实际覆盖情况和测试结果,并对其建设要点进行了分析研究。     

三棒圆钢微裂纹、刮伤缺陷的检验与分析

总结介绍圆钢微裂纹、刮伤缺陷的检验与判定,以及根据镦锻检验结果判定缺陷原因的方法。     

Enhancing TRU burning and Am transmutation in Advanced Recycling Reactor

This paper presents about conceptual designs of Advanced Recycling Reactor (ARR) focusing on enhancement in transuranics (TRU) burning and americium (Am) transmutation. The design has been conducted in the context of the Global Nuclear Energy Partnership (GNEP) seeking to close nuclear fuel cycle in ways that reduce proliferation risks, reduce the nuclear waste in the US and further improve global energy security. This study strives to enhance the TRU burning and the Am transmutation, assuming the development of related technologies in this study, while the ARR based on mature technologies was designed in the previous study. It has followed that the provided TRU burning core is designed to burn TRU at 28 kg/TW_thh, by adding moderator pins of B₄C (Enriched B-11) and the Am transmutation core will be able to transmute Am at 34 kg/TW_thh, by locating Am blanket of AmN around the TRU burning core. It indicates that these concepts improve TRU burning by 40-50% than the previous core and can transmute Am effectively, keeping the void reactivity acceptable.     

冷轧硅钢片磁性能测量因素的分析

采用硅钢片磁性能测试系统,分析了测试环境温度(10～30℃)、试样质量(642～667 g)和剪切应力(剪切1～5次)对国内外不同牌号0.27～0.50 mm取向和无取向冷轧硅钢片磁性能的影响.结果表明,随环境温度升高,冷轧硅钢片的铁损和磁感降低;随试样质量增加,铁损增加,磁感降低;随剪切次数增加铁损递增,磁感递减.文中归纳出磁性能测量的适合条件和注意事项.     

关于干硬性混凝土试件制作方法的探讨

为了使干硬性混凝土试件制作更具有代表性,从制作过程中的密度控制、振动层数、振动时间与混凝土28天的标养强度的相关关系中,找出适合于干硬性混凝土试件的制作方法．     

入境废纺织原料环控标准要点的探讨

为了更准确地理解入境废纺织原料的环控标准,通过对入境废纺织原料口岸检验的实践与环控指标的普查,对入境废纺织原料环控标准中各方需要关注与掌握的分类监管条件、危险废物鉴别检验、放射性检测等要点进行了分析.对各方在入境废纺织原料的监管、经营、使用、规避环保风险,作好废物原料资源利用提出了建议.     

Uster条干仪试验中应注意的几个问题

介绍了采用Uster条干仪试验数据分析产品质量时应注意的几个问题。Uster统计值只是反映出当前阶段世界生产产品质量的平均水平，由于试样的容量小，用其平均值来反映产品的实际质量状况存在有局限性，为此作者提出了置信区间这一概念，同时指出了在试验中应注意的几个问题。     

原棉性能对成纱质量影响的试验分析

为了确定棉纤维的性能对成纱性能的影响,通过试验分析了棉纤维与成纱性能之间的内在联系.原棉的断裂强度及断裂伸长率越高,其成纱的断裂强度及断裂伸长率也越高,棉纤维的平均长度越长,短纤维含量越少,其成纱断裂强度越高,断裂伸长率愈大,毛羽数越少.研究原棉性能与成纱质量的关系,以便能从纤维的性能来预测其成纱的质量.     

Performance evaluation of lateral flow immuno assay test kits for quantification of deoxynivalenol in wheat

Lateral flow immuno assay test kits for determining the presence of deoxynivalenol (DON) in grain provide relatively simple, cheap and quick detection means, but are only useful if they provide reliable and accurate results. This study aimed to evaluate the performance of four different lateral flow immune assay test kits, being Reveal Q+ DON (Neogen), Donsensor (Unisensor), RidaQuick DON (R-Biopharm AG), and RosaFast DON (Charm Sciences Inc.). The performance was evaluated based on accuracy, repeatability, and toxin recovery of the test kits using three types of wheat sample material. These included samples spiked at three different DON concentrations, reference material with a DON concentration of 900 μg/kg, and naturally contaminated samples with a wide range of DON concentrations.Results revealed that, in general, Reveal Q+ and Donsensor were the most accurate methods, whereas the performances of RidaQuick and RosaFast were much lower. Mean toxin recovery and repeatability of Reveal Q+ and Donsensor complied with EC requirements for analytical methods used for official control of DON in foodstuffs. Reveal Q+ and Donsensor also showed high accuracy. RidaQuick and RosaFast showed lower performance, in particular recovery of RidaQuick was lowest. However, laboratory procedures for the latter two test kits were easier to follow. In particular, RidaQuick has the easiest testing procedure and can be applied on-site without technical skills. Future research could focus on a more in-depth evaluation of the performance of Reveal Q+ and Donsensor, also including evaluation of between laboratory reproducibility.     

无梭织机常见电子送经系统的组成及其发展

介绍了组成无梭织机电子送经系统的经纱张力感应系统、控制系统、织轴驱动系统，并对经纱张力感应系统中的接近开关检测方式和张力传感器检测方式、控制系统中的交流电机开关方式和交流伺服电机控制方式、织轴驱动系统中直流伺服驱动方式和交流伺服驱动方式进行了对比和分析，阐述了电子送经系统的发展趋势及方向。