国外跨语言自动问答系统研究综述

介绍了垮语言自动问答系统及其实现模式和实现原理,并对其涉及的答案类型预测、翻译、信息检索、答案提取等相关方法与技术进行分析.对比阐述CLEF、NTCIR会议对此类系统的评价内容及方法.最后,介绍系统的运用.     

辽宁省国有制造企业信息化建设分析与研究

本文阐述了辽宁省国有制造企业的基本情况,对辽宁60家国有制造企业信息化建设状况进行了调查,并且进行了评价分析.     

作为类型的神怪章回小说

根据共同的题材、结构、情调等对小说进行分类研究,这一研究策略很大程度上是因为文学创作中存在某些惯例性的规则,不了解这些小说类型的来龙去脉及其主要特征,对作品的批评和赞誉都可能不着边际。本文即是对作为类型的神怪章回小说的表述。     

Double lock of a potent human therapeutic monoclonal antibody against SARS-CoV-2

Receptor recognition and subsequent membrane fusion are essential for the establishment of successful infection by SARS-CoV-2. Halting these steps can cure COVID-19. Here we have identified and characterized a potent human monoclonal antibody, HB27, that blocks SARS-CoV-2 attachment to its cellular receptor at sub-nM concentrations. Remarkably, HB27 can also prevent SARS-CoV-2 membrane fusion. Consequently, a single dose of HB27 conferred effective protection against SARS-CoV-2 in two established mouse models. Rhesus macaques showed no obvious adverse events when administrated with 10 times the effective dose of HB27. Cryo-EM studies on complex of SARS-CoV-2 trimeric S with HB27 Fab reveal that three Fab fragments work synergistically to occlude SARS-CoV-2 from binding to the ACE2 receptor. Binding of the antibody also restrains any further conformational changes of the receptor binding domain, possibly interfering with progression from the prefusion to the postfusion stage. These results suggest that HB27 is a promising candidate for immuno-therapies against COVID-19.     

浅谈P2P网络结构

随着网络与信息资源的飞速发展,P2P文件共享系统等分布式网络应用已经成为人们获取网络资源信息的重要途径.P2P网络应用自诞生以来,其拓扑结构不断改进,稳定性也不断加强.本文主要总结了P2P网络结构的变迁以及典型代表.     

我国上市公司发行公司债券对二级市场股价的影响

在吸取国内外相关研究的基础上,通过采用事件研究方法对我国上市公司发行公司债券后二级市场上股价的反应进行研究,并对实证结果进行分析,得出进行债券融资对上市公司股价有积极的影响,但影响并不是很显著;股价对于事件发生的反应可能在债券发行日前就已经形成了趋势等结论。     

An intellectual capital perspective of human resource strategies and practices

Knowledge Management Research & Practice - Previous research has investigated the relationships between intellectual capital (IC) and human resource management (HRM). Others have described the...     

关于数学"命题"教学的探究

掌握命题种类,正确判断简单命题、复合命题及“且”、“或”、“非”的判定。     

Amplification of SPPS150 and Salmonella typhi DNA with a high throughput oscillating flow polymerase chain reaction device

In this paper, a novel oscillating flow polymerase chain reaction (PCR) device was designed and fabricated to amplify SPPS150 and salmonella typhi. In this new design, the samples are shuttled (oscillating flow) inside a microfluidic chip to three different temperature zones required for DNA amplification. The amplification cycle time has markedly been reduced as the reagent volume used was only about 25% of that used in conventional PCRs. Bubble formation and adsorption issues commonly associated to chip based PCR were also eliminated. Based on the performance evaluated, it is demonstrated that this oscillating flow PCR has the advantages of both the stationary chamber and continuous flow PCR devices.