半导体激光与氦-氖激光治疗带状疱疹性神经痛的疗效观察

目的:观察半导体激光与氦一氖激光治疗带状疱疹性神经痛的临床疗效.方法;将患者73例随机分为2组,半导体激光治疗组39例,采用半导体激光治疗;氦-氖激光治疗组34例采用氦-氖激光治疗.结果:半导体激光治疗组有效率为97.5%:氦-氖激光治疗组有效率为79.4%.两组比较差异显著(p＜0.05).结论:半导体激光照射治疗带状疱疹疗效较高.     

基于5G智慧园区的车联网系统应用示范

5G智慧园区作为建设智慧城市的关键切入点,具有交通组成元素相对单一、相关业务要求明确的特点,有利于实现5G+C-V2X商业化的快速落地,5G网络可以为园区内的交通群体带来超大带宽、超低时延、超大连接的网络接入条件。首先结合5G网络特性以及智慧园区内交通群体的实际需求进行了分析,在此基础之上提出了一套基于5G+C-V2X的智慧园区车联网系统。该系统能提供多种智慧交通创新技术及业务示范,用于在冬奥会期间提供多场景下的车-路-云-网智慧交通服务。可以此为契机打造5G创新业务行业标杆案例,有效引领智能车联网的产业创新,促进全球车联网产业更好更快发展。     

Synthesis and Anti-inflammatory Activity of a Novel Series of 9,10-Dihydro-4H,8H-chromeno[8,7-e][1,3]oxazin-4-one Derivatives

Flavonoids exhibit a wide range of biological activities including anti-inflammatory activity,while some 1,3-benzoxazine derivatives show anti-inflammatory activity.In order to explore the novel anti-inflammatory agents,based on the principles of bioisosterism and hybridization,ten novel chromeno[8,7-e][1,3]oxazin-4-ones were synthesized and characterized with IR,1H NMR,MS and elemental analyses.The anti-inflammatory activities of the target compounds were evaluated via the croton oil-induced ear oedema tes...     

密度泛函理论研究碳链长度对氯化三烷基铵萃取氯化汞的影响

运用密度泛函理论方法研究了烷基碳链长度对氯化三烷基铵络合氯化汞的影响,计算结果表明,氯化三烷基铵与氯化汞的络合作用随着氯化三烷基铵中烷基碳链的增长而增强.通过对络合物的键长、Mayer键级和Mulliken电荷分析可知,电子富集在氯化三烷基铵的Cl原子上,并和Hg原子之间形成静电吸引作用.当烷基长度小于3时,烷基的电子效应影响较为明显,增强了原子之间的电子转移,使得络合物更稳定;当氯化三烷基铵烷基碳链长度大于3后,烷基链长对络合物中的电子转移不再有影响,络合物的稳定性受到烷基的几何效应影响更为明显.     

Teleportation Capability of Six-Qubit Cluster State

Recently Wei-Bo Gao et al. [Phys. Rev. Lett. 104 （2010） 020501]; reported on the creation of a 4-photon 6-qubit cluster state. It is shown this states can be utilized for perfect teleportation of arbitrary three qubit systems and controlled teleportation of an arbitrary two-qubit state. Therefore, the six-qubit cluster state as quantum channels is equivalent to that of maximally six-qubit entangled state.     

唐海广播电台音频工作站技术分析和实施方案

广播电视产业现正向网络化、数字化、自动化方向发展，音频工作站在基层电台制作播出中已成为可能。重点介绍了适用于县级台的音频工作站的技术规范及构成，提出了几点维护维修方案。     

Structure and Semiconducting Character of a Polymeric Iodoplumbate Coordination Complex

A new polymeric iodoplumbate complex [Zn(DMF)6][Pb2I6] 1 has been prepared and characterized by elemental analysis and single-crystal X-ray analysis. Its structure contains infinite iodoplumbate chains constructed by the [PbI5] subunit. EHT crystal orbital calculation and the experimental results show that this material is an unconventional semiconductor and the electrical character is associated with its structural feature.     

An Almost Sure Result on Sampling of Bandlimited Random Signals

The Shannon-Nyquist sampling theorem for deterministic signals is a fundamental result in the field of telecommunication and signal processing, and many re- sults on this topic have been obtained. However, very few results on random signals have been published, after Kol- mogorov mentioned the importance of Shannon-formula for stochastic signals in 1956. In this paper, following the almost sure result for bandlimited stochastic processes pro- posed by Seip in 1990, we give an almost sure result of the classical sampling theorem for bandlimited random signals with local average sampling.     

双向防水型数字缆的设计及开发

本文重点介绍了江苏亨通线缆科技有限公司结合目前特殊场合布线的需求,并从产品性能及成本角度出发,开发出了一种双向防水型数字电缆,并简单阐述了该产品的工艺设计、电气性能特点和生产过程中关键开发技术的控制。