多径扩散信道中DS／CDMA通信的盲干扰抑制

分析在多径扩散码分多址 (CDMA)信道中运用盲技术同时抑制窄带干扰和多址干扰及码间干扰 .该技术基于次优化子空间盲最小均方误差 (MMSE)多用户检测算法 .本文提出的盲最小均方误差算法抑制窄带干扰如 :多音、自回归和数字干扰的性能优于传统窄带干扰抑制算法     

体育锻炼影响大学生心理健康模型的分析与思考

综合国内有关文献,就大学生心理健康的体育干预研究中的理论研究现状、研究范式及研究变量选择进行了分析与探讨,指出在进一步的研究中,应建立一个多层次的、系统的、能够连结社会、心理、生物诸方面的理论模型来指导今后的研究;在变量指标的选择上,应该充分考虑大学生自身所具有的特点,针对大学生的特点选择指标;此外,对复杂的变量关系的讨论是今后研究中的一个趋势。     

日本留学生汉语语段表达中母语“た”的特殊迁移现象分析

由于母语的差异 ,日本留学生有一类为其他语种的留学生所少有的偏误现象 :即习惯于在叙述语段中的每句的句尾都用“了”,以表达母语的过去完成时态 ,结果使得日语过去助词“た”的迁移贯穿于汉语整个叙述语段的始末。这种母语的迁移现象 ,是我们以往以句法为中心的语法教学所忽视的。我们应以句群语段为语境 ,在与日语的对比中 ,分析和掌握汉语助词“了”在具体文体中的隐现规律     

对教育传播过程中干扰的认识

干扰作为信息传播过程中的附加信息,存在于信息传播的各个环节。干扰的存在具有绝对性、广泛性和可调整性等特点。在教育传播过程中,干扰主要表现在信源质量干扰、教育媒体干扰和受众的生理性和心理性干扰这几个方面。一般而言,在信息传播过程中,应尽量减少干扰的影响,因此,应根据干扰的不同表现形式采取相应的措施,使干扰减小到最低程度。但为了达到教学上的一些特定的要求,也可以在教学过程中故意引入干扰,使教学目标得以     

运动状态和背景颜色对知觉干扰效应的影响

本研究以模糊汉字图片为实验材料,探究背景信息对知觉干扰效应的影响。两个实验分别考察运动状态和背景颜色对知觉干扰效应的影响。研究结果表明,被试对汉字图片的识别存在明显的知觉干扰效应;运动状态和背景颜色不影响知觉干扰效应的产生,但是背景颜色会显著降低被试的识别正确率。     

基于形式语言学的汉语条件句新解

以往条件句的研究主要依赖对语言的直觉经验,对其语义生成和理解过程的研究相对欠缺,特别是对汉语条件句语义的整体关照严重不足。采用无条件句、目的句、转折句这一类名称,不利于对条件句做出根本性的梳理,致使很多句式的语义仍然没有揭示清楚。对汉语条件句及相关句族有必要重新审视。     

对比语言学在英语教学中的应用

对比语言学作为语言学的一个分支,通过对比,揭示两种或两种以上语言的异同,促进语言学的发展,并对语言实践起指导作用。试通过对比英汉两种语言,阐述母语干扰给英语学习带来的困扰,分析在英语教学中,教师如何将对比语言学运用到教学中,指导我们的实践。     

Contribution of the laboratory to a diagnosis process by sequential reflective testing: Paraprotein interference on a direct bilirubin assay

Errors in laboratory medicine occur in the preanalytical, analytical, and postanalytical phases. The errors are mostly detected in the preanalytical period. However, analytical errors are still an important source of error, despite their frequency is reduced significantly in years thanks to developments in laboratories. In this case, an analytical error was noticed during the verification of a patient’s results. The direct bilirubin of a 66-year-old male patient admitted to the emergency department was higher than the total bilirubin. The patient’s symptoms were fatigue and dyspnoea. Albumin and haemoglobin (Hb) concentrations of the patient were significantly low. After considering the patient’s demographics and laboratory results, the laboratory specialist suspected a paraproteinemia interference. Total protein was performed as a reflective test. The albumin/globulin ratio was reversed. Thereafter, serum protein electrophoresis (SPEP) and immunofixation electrophoresis (IFE) were performed as another reflective tests, respectively. SPEP and IFE results were in favour of monoclonal gammopathy. The patient was directed to a haematologist, underwent a bone marrow biopsy, and the result was reported as Waldenstrom’s macroglobulinemia with plasma cell differentiation expressing IgM-Kappa. The patient went on a chemotherapy protocol, and his condition has been improved in subsequent months. Detection of analytical errors is of great importance, like in our case, and may be used as a tool to identify patients who have not yet been diagnosed. The laboratory specialist must dominate the entire process of each test in the laboratory, be aware of the limitations of tests, and turn these disadvantages into advantages when necessary.     

中波同步广播单频覆盖网的干扰场分析

通过介绍中波同步广播的发展历史,并对中波同步广播单频覆盖网形成的叙述,重点对中波同步广播单频覆盖网所形成相干区的要素进行分析。