Live attenuated salmonella vaccines to control avian pathogens
    4.
    发明授权
    Live attenuated salmonella vaccines to control avian pathogens 失效
    活减毒沙门氏菌疫苗来控制禽类病原体

    公开(公告)号:US06399074B1

    公开(公告)日:2002-06-04

    申请号:US09122441

    申请日:1998-07-24

    申请人: Kenneth L. Roland

    发明人: Kenneth L. Roland

    IPC分类号: A61K3902

    摘要: A vaccine for protecting birds against infection by avian pathogenic gram negative microbes is disclosed. The vaccine is a recombinant Salmonella strain expressing O-antigen of an avian pathogenic gram negative microbe such as an E. coli strain that is pathogenic in poultry. The recombinant Salmonella strain also does not express Salmonella O-antigen. Methods of using the vaccine to immunize birds are also disclosed.

    摘要翻译: 公开了一种用于保护鸟类免受鸟类致病性革兰氏阴性微生物感染的疫苗。 该疫苗是表达家禽致病性的禽类致病性革兰氏阴性微生物的O-抗原的重组沙门氏菌菌株,例如大肠杆菌菌株。 重组沙门氏菌属菌株也不表达沙门氏菌O抗原。 还公开了使用疫苗免疫鸟类的方法。

    Telecommunications switching network including improved port selector
and control circuitry
    5.
    发明授权
    Telecommunications switching network including improved port selector and control circuitry 失效
    电信交换网络包括改进的端口选择器和控制电路

    公开(公告)号:US5373501A

    公开(公告)日:1994-12-13

    申请号:US911642

    申请日:1992-07-10

    申请人: Kenneth L. Roland

    发明人: Kenneth L. Roland

    摘要: A telecommunications network testing and protocol analyzer arrangement including an improved control and port selecting circuitry which may be provided in the form of a board which plugs into a standard IBM or IBM compatible PC, XT, AT expansion bus (8 bits) and allows for the operate, non-operate control of up to 180 port relays while at the same time providing 8 simultaneous control outputs for other circuit and parameter control functions. All outputs are standard TTL level outputs which may be directly utilized as relay drivers. The selector and control board is controlled by software running under standard PC DOS of MS DOS. The control and selector board may be controlled completely from the computer keyboard as well as from a remote IBM or IBM compatible computer.

    摘要翻译: 电信网络测试和协议分析器布置包括改进的控制和端口选择电路,其可以以插入标准IBM或IBM兼容PC,XT,AT扩展总线(8位)的板的形式提供,并允许 操作,多达180个端口继电器的非操作控制,同时为其他电路和参数控制功能提供8个同时控制输出。 所有输出都是标准TTL电平输出,可直接用作继电器驱动器。 选择器和控制板由MS DOS的标准PC DOS下运行的软件控制。 可以从计算机键盘以及远程IBM或IBM兼容计算机完全控制控制和选择器板。