The paper researches the received waveform and the characteristic of BER in one refection and twice refection, studies the influence of multipath distortion on the transmitted pulse. 通过研究几种发射脉冲的一次反射和二次反射的接收波形以及它们的误码率特性,研究了信道多径失真对室内无线光通信的影响。
His feelings of insecurity go back to his childhood fears of refection. 他的不安全感来自他童年时被抛弃的恐惧。
Its round refection gleamed in the lake. 它那圆圆的倒影在湖面上粼粼闪烁。
Cutting Simulation With Computer Based on Refection Meshes 基于投影网格的切削加工计算机仿真
Auto Disturbances Refection Flight Controller Design Method based on Immune-PSO Algorithm 基于免疫粒子群算法的自抗扰飞行控制器设计
Study on the causes of refection cracks in asphalt pavement and prevention and treatment 沥青路面反射裂缝成因分析及其防治
Objective: To explore the serologic and clinical characteristic of aged cases with acute respiratory refection ( ARI) who infected by 7 kinds of common virus. 目的:了解老年急性呼吸道感染(ARI)患者中7种常见病毒感染血清学和临床特点。
It, on the other, being the best and most valuable part and excluding the passive elements in a nation's consciousness, embodies a concentrated refection of a nation's core ideology. 另一方面,民族精神又集中反映了一个民族的思想核心,是民族意识中最优秀的与最有价值的“精气神”。
This paper discusses subjects as follows: In the chapter I, in order to solve the problem that common refection seismic method can't do, high density multi-wave array seismic imaging method is used in the project. 前言部分指出黄土暗穴探测需要解决的问题和常规反射法地震勘探存在的问题,及为什么要用高密度多波列地震影像法。
Conclusion More suitable for refection of the activity of moderate or severe colonic CD, CRP can reflect the effects of drugs in the early stage of CD. 结论CRP升高更适于反映中、重度结肠CD的活动性;快速反映药物治疗的有效性;
How to improve the comprehensive quality and creative ability of the teacher in the primary and secondary school, is bound to follow the people's refection and practice for about one century. 如何提升中小学教师综合素质与创新能力,曾伴随着人们近一个世纪的思考与实践。
The Variation is not only the double refection of culture's epoch and nationality, but also the expression of world cultural structure formed as the result of cultural interaction. 多元化是文化的时代性与民族性的双重表现,是文化互动形成的世界文化格局的表现。
Finally, the stress wave is analyzed by continuous wavelet transform with the optimal base wavelet, and the concentrations of local energy in the wavelet transform module spectrum indicate the features of refection stress wave induced by damages in foundation pile. 最后采用最优基小波对基桩检测应力波进行连续小波变换,模谱的局部能量集中指示了桩底反射。
This article also theoretically discusses the achievement of decoration art of soochow woodcarving doors and windows, refection of social folk-custom and historical civilization connotation, brilliant art character, and unique contribution to the nationality culture. 从理论上探讨苏州门窗装饰艺术所取得的成就,其反映的社会民间习俗和历史文化内涵,鲜明的艺术特征,及对民族文化的独特贡献。
Based on the experience of 182 patients undergoing hepatic refection for intrahepatic stones, we discussed the pathological changes that need to be corrected by liver resection, the indications, procedures, techniques and the results of the hepatic resection applied to intrahepatic stones. 根据182例肝内结石行肝叶切除的经验.本文讨论了需肝切除矫正的病理改变、手术指征、技术操作和结果。
We introduce perfectly matched layer to attenuate the refection of the artificial boundary, and construct boundary and corner point conditions of elastic wave equations in isotropy media. 为了消除边界反射,引入最佳匹配层,构造了各向同性介质中弹性波方程在不同边界和角点处的边界条件。
Based on the vector law of refection in optics, the scanning error ′ s academic formula is educed. 根据光学矢量反射定律,推导出了扫描误差的理论公式;
On the basis of existing performance examination system and according to the Operation Condition Refection Theory, this company broadened ideas, and set up effective performance examination system. 天津分公司在原有绩效考核体系的基础上,以操作条件反射理论为依据,开拓思路,建立了行之有效的绩效考核体系。
Refection and transmission of light beam in FTIR configuration FTIR结构中光束的透射和反射
The edge-layer theory is applied to study the refection and transmission of the weakly nonlinear internal wave over a step in a two-layer fluid system. 本研究将边缘层模型应用于两层流体系统中弱非线性内波在台阶地形上的反射和透射问题的研究。
This testis lays emphasis on the study the advances and flaws in the legislation of administrative review system and puts forward purposeful refection measures. 本文运用比较和实证的方法,着力研究了我国行政复议制度立法上的进步与不足,并提出了针对性的意见和建议。
The structure of industry capital stocks is the refection of regional industry structure. 产业资本存量结构是区域产业结构系统的直接体现。
The problem of system fault diagnosis is the matter of multi-knowledge sources, which results in the wide refection of the states of system. 系统的故障诊断问题是一种多知识源问题,反映系统状态的信息有时十分广泛。
Due to the effect of ghost refection, the position of streamer and sources is closely related to the receiver frequency of the seismic systems and puts great effect on the survey data. 受地震勘探中鬼波效应的影响,缆源的调谐组合参数与地震系统的接收频率直接相关,对地震调查资料影响很大。
Low angle grain boundaries and micropipes in 6H-SiC wafer were observed by synchrotron radiation back refection white-beam topography. 利用同步辐射X射线形貌术对升华法生长的6H-SiC(0001)晶片中的小角晶界与微管缺陷进行了研究。
Modern Writers 'Refection on the Identity between Man and Nature 现代作家关于人与自然存在同一性的思考
In refection to this question in a efforts, no doubt the roe of government is the most obvious and most efficient. 而在为这个问题思考的所有努力中,无疑政府的作用是最明显和最具有效率的。
But in specific diplomatic practices, the refection of cultural values on nations 'diplomatic actions and foreign relations is not inevitably and continuously maintained. 但是在具体的外交实践中,文化价值观在国家对外行为和外交关系中的体现并非一直是连续的。
The surface bioelectrical signal is the refection of the self-consciousness of alife entity. 生物表面电信号是生物体自主意识的体现。