查询词典 virus

To evaluate the efficacy of the recombinant fowlpox virus vaccine against the heterotype IBV, the chickens were challenged with the homotype IBV LX4 strain and the heterotype IBV LTJ95I strain after three weeks post vaccination. Antibodies against IBV were detected in vaccinated chickens one week post inoculation. The CD4+ T-lymphocytes in the peripheral blood increased rapidly in all groups challenged with IBV, except for the vaccinated group challenged by heterotype strain and the low level of CD4+ T-lymphocytes remained until end of the experiment. In all the groups, a high level of CD8+ T-lymphocytes only was observed in the vaccinated group after challenging with IBVhomotype strain. The morbidity and the mortality of this group were 21.43 % and 0 %, respectively, which showed significant difference with other groups. In addition, the lesions of chickens and virus shedding were less in the vaccinated group challenged by IBV homotype strain comparing with other groups, but there was no difference for the average body weight of chickens in all groups.

结果显示，重组疫苗接种1周后，免疫鸡产生抗IBV的抗体；而且外周血中CD4+和CD8+ T淋巴细胞的含量略高于非免疫对照组；攻毒后，异源强毒株攻毒的免疫组CD4+ T淋巴细胞呈下降趋势，并且该组低水平CD4+的状态一直持续到试验结束，而其他组CD4+ T淋巴细胞均迅速上升，峰值达到14.5 %；同源强毒株攻毒的免疫组CD8+ T淋巴细胞呈高水平的表达，而其他组攻毒后均无明显变化；保护率结果显示，同源强毒株攻毒免疫组的发病率和死亡率为21.43 %和0 %，与其他各组相比均有显著差异；另外同源强毒株攻毒的免疫组病理损伤与异源强毒株攻毒的试验组相比明显减轻，其排毒时间和排毒量也均有所减少；强毒攻毒后所有试验组体重无显著差异。

The meeting after virus moves deletes systematic file Svchost.exe, it builds homonymic virus file below systematic catalog later.

病毒运行后会删除系统文件svchost.exe，之后它在系统目录下建立同名的病毒文件。

In this study, we refer to the NCBI database to design primers which are used for amplification of the gene fragment of hepatopancreatic parvovirus、infectious hypodermal and hematopoietic necrosis virus and taura syndrome virus.

本研究从NCBI database资料中，分别在肝胰小病毒(hepatopancreatic parvovirus， HPV)、传染性皮下及造血组织坏死病毒(infectious hypodermal and hematopoietic necrosis virus， IHHNV)和桃拉病毒(taura syndrome virus， TSV)等三种常见之虾病毒中，各选出一段壳蛋白基因，利用重组蛋白的方式，在大肠杆菌中大量表现。

Dhar AK, Roux MM, Klimpel KR. Detection and quantification of infectious hypodermal and hematopoietic necrosis virus and white spot virus in shrimp using real-time quantitative PCR and SYBR Green chemistry［J］.

研究过程发现SYBR Green I实时荧光定量RT-PCR与巢式RT-PCR相比，具有线行关系好、线性范围宽等特点；并且，扩增和检测在同一管内完成，不需要开盖，不需要电泳检测PCR产物，有效解决了污染问题［10］。

Parkinson s disease is a degenerative disease of the basal ganglia causing tremor at rest, muscle rigidity and hypokinesia Gene therapy is most likely to cure PD completely, and the most promising one among all the treating ways But its effectiveness and safety have a strong relationship with the vectors chosed This article introduces some usually used virus vectors and their characteristics as well as the trend of virus vector in PD s gene therapy

帕金森病是一种神经节退行性疾病，主要以静止震颤，肌肉僵直和运动减少为临床症状。在其各种治疗方法中基因治疗最有望彻底治愈PD，最有发展前景。但其有效性与安全性与其所选用的载体有很大关系。本文介绍了基因治疗中常用的病毒载体以及它们的特性，并指出PD基因治疗中病毒载体的发展趋势。

A experiment was conducted to indagate the morbidity of maize rough dwarf virus in different planting methods and studied the effects of maize rough dwarf virus on the plant physiological characteristics of maize in four ecological regions of Shandong province.

在山东省4个不同生态区域调查研究了种植方式对玉米粗缩病发病率的影响，并研究了粗缩病对玉米植株特性的影响。

The number of rabies infections increase these years,because there is no universal investigation in China, so it is unsure about the epidemicsituation of rabies in China. It is essential to study the molecular epidemiology ofstreet rabies virus isolated from the nature in order to prevent rabies infection andunderstand different inquilinous bodies of virus in different areas.

中国自2000年以来狂犬病的流行呈逐年上升的趋势，由于中国尚未开展大面积普遍的狂犬病流行病学调查，所以对中国境内狂犬病的流行情况还不明确，为了有效防制狂犬病，非常有必要对自然界分离的狂犬病街毒进行分子流行病学研究，以了解不同地域不同宿主病毒的流行特点。

The campus network is an important part of the construction of university modernization and its security issues is also intimidatory by various problems. This article is for the campus network security features of the discussion based on a three layer switch embedded virus defense and information monitoring system, which researches the technical problems based on the embedded virus defense and information monitoring system, and provide the solutions and development based on the existing technologies.

高校校园网络是高校现代化建设中重要的组成部分，同样，其安全问题也受到各个方面的威胁，本文结合高校网络建设过程中校园网络的安全特点，对于基于三层交换机的校园网络防御体系进行了探讨，研究了基于三层交换机嵌入式病毒防御与信息监控系统要解决的技术问题，并依据现有的技术提出了解决方案及发展的趋势。

Dispatch of sina science and technology on March 16 afternoon message, jiang Min turns over virus center to express now, user of the bank on larcenous net is many in former days the virus of net silver great robber of capital is varietal " net silver-colored burglar " Internet of indulge in wilful persecution, not only the Zhang name code that can steal user of the bank on the net, the line of defence that can break through bank U aegis even makes transfer accounts on the net.

新浪科技讯 3月16日下午消息，江民反病毒中心今日表示，昔日盗窃网上银行用户大量资金的网银大盗病毒变种&网银窃贼&肆虐互联网，不但可以盗窃网上银行用户的账号密码，甚至可以突破银行U盾的防线进行网上转帐。

Avian leukosis virus subgroup J was first isolated in 1989 and identified as a new subgroup of avian leukosis virus.

J亚群禽白血病病毒是1989年被分离、鉴定出的一个新的禽白血病病毒亚群，与其它ALV亚群比较，该亚群病毒的一个显著特点是其env基因非常独特。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。