测量气体折射率的方法研究

介绍了几种测量气体折射率的方法,并对它们进行了比较,同时提出了进一步提高测量精度的建议。     

论英语教学中文化负迁移的成因及应对策略

中英两种语言形式具有的不同的特点,是中西思维方式的差异使然。思维模式导致的直接结果是文化差异,文化差异又导致文化负迁移。在英语教学中应克服文化的负迁移作用。     

电磁兼容设计中的接地技术

讨论了电磁兼容的地线干扰产生的原理及抑制地线干扰的各种接地技术。     

数字电路的EMC研讨

EHC(Electro Hagnetic Compatibility)是指干扰可以在不损害信息的前提下与有用信号共存。随着数字化产品的不断问世,其电磁兼容性的设计越来越引起人们的重视,因为高速数字电路工作时,会产生大量的高频干扰信号,处理不好,不仅影响电路本身性能,而且还会影响周围环境。所以如何减少数字电路部分的电磁干扰,使其能够安全有效的工作,越来越引起人们的重视。该文主要对数字电路中的常见干扰进行分析,并对数字电路中如何降低干扰的技术进行了详细的讨论。     

Why Might Distance Make the Heart Grow Fonder?: A Relational Turbulence Model Investigation of the Maintenance of Long Distance and Geographically Close Romantic Relationships

Following the relational turbulence model, we examined the extent to which relational uncertainty and partner interference mediate distance and relational maintenance, here assessed as relational continuity constructional units (RCCUs), as predictors of relational turbulence. Results were consistent with and extend the relational turbulence model, with relational uncertainty mediating RCCUs and partner interference mediating distance. In addition to highlighting RCCUs as a communicative buffer against relational uncertainty, the results reveal a complex picture of geographic distance. Addressing mixed findings in previous research, it appears distance may foster relational turbulence yet also predict reduced turbulence when accompanied by diminished partner interference.     

Spurious Hyperphosphatemia in a Case of Multiple Myeloma

A 50 year old male was admitted in our hospital with anemia and impaired renal function. He was subsequently found to have extremely elevated serum phosphate level (24 mg/dL, reference interval: 2.5–4.5 mg/dL) with normal serum calcium when assayed on a Beckman Coulter AU 480^® analyser. Clinico-biochemical discrepancy led to the suspicion of spurious hyperphosphatemia. Serum total protein was grossly elevated with gross reversal of albumin to globulin ratio. Serum electrophoresis revealed a large M band and was confirmed as Ig G-Kappa type on immunofixation. Subsequently a bone marrow aspiration biopsy confirmed the diagnosis of multiple myeloma. The patient serum was then reassayed for phosphate on a Vitros^® 250 Dry Chemistry platform and the result was within normal reference interval. Paraproteinemias are a common cause of analytical interference in clinical biochemistry laboratories and as multilayered film technology platforms like Vitros^® assay most routine analytes on a protein free filtrate they are unaffected by paraprotein interference. Clinically discordant patient results should always be interpreted keeping such interferences in mind.     

劈尖干涉理论及应用

介绍了劈尖干涉的原理,利用分振幅法将一束光分为两束光,在介质膜上、下表面反射的光在膜的上表面附近相遇,而发生干涉,在介质表面就会观察到明暗相间、等间距的条纹。探讨了劈尖干涉理论在检查平面的平整度及计算平面凹凸的深度、测量微小长度、微小角度等很多实际应用的结论,改进了测量微笑长度的方法。     

衍射现象的计算机模拟

在平面光栅衍射强度分布公式的基础上,通过计算机模型模拟光的双缝干涉、单缝衍射、多缝衍射、粒子的单缝和双缝衍射、物质的波粒二象性及简单的色散现象等。试验证明,此模型具有方便、快捷、精确、高效的特点。     

北魏冯、胡两宫干政异同考

一直以来,人们普遍认为北魏文明太后冯氏与胡灵太后对北魏社会的兴起、衰亡有很大的影响。从她们的出身、入宫及干政的经过等诸多细节的对比阐述来说明冯氏、胡氏干政情况之异同,对于北魏社会的影响不仅与她们个人因素有很大关系,也与二人所处的历史社会环境有关。     

基于Mi-Fi的多终端Access VPN接入研究与实现

为了解决多个Wi-Fi终端同时接入Access VPN的问题,采用运营商提供的专用APN技术,利用Mi-Fi和专用APN相结合设计了一种新型实现方案。通过双向NAT转换技术,不改变原网络结构和数据配置。实验结果表明,网络组建快捷,系统运行稳定,通过Mi-Fi实现的多终端接入与单机APN接入效果完全一致。