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    • 1. 发明申请
    • Over-voltage protection arrangement
    • 过压保护装置
    • US20080158758A1
    • 2008-07-03
    • US12001560
    • 2007-12-12
    • Kim SalovaaraPer-Erik Andersson
    • Kim SalovaaraPer-Erik Andersson
    • H02H9/04
    • H02H3/202
    • An over-voltage protection arrangement (1) for protecting an electric device from over-voltages, the arrangement comprising an input voltage terminal (2), to be connected to a voltage feed, and an output voltage terminal (3), to be connected to the electric device to be protected, whereby the arrangement (1) is adapted to protect the electric device from voltages on the voltage feed deviating from a predefined threshold range, the arrangement further comprising a field effect transistor (4) connected in between the input terminal (2) and the output terminal (3) so as to enable an electric connection between said terminals (2, 3). The arrangement (1) is distinguished by: at least one trigger circuit (6a, 6b) being adapted to respond to a trigger voltage, a voltage on the voltage feed deviating from the threshold range, by controlling the field effect transistor (4) to throttle the electric connection between the input (2) and output (3) terminals.
    • 一种用于保护电气装置免受过电压的过电压保护装置(1),所述装置包括要连接到电压馈送的输入电压端子(2)和要连接的输出电压端子(3) (1)适于保护电气设备免受电压馈送偏离预定阈值范围的电压,所述装置还包括场效应晶体管(4),其连接在输入端 端子(2)和输出端子(3),以便能够在所述端子(2,3)之间进行电连接。 该装置(1)的特征在于:至少一个触发电路(6a,6b)适于通过控制场效应晶体管(4)来响应触发电压,电压馈送上的电压偏离阈值范围 )来节流输入(2)和输出(3)端子之间的电气连接。
    • 3. 发明授权
    • Process for digesting and bleaching cellulosic material with reduced
emissions
    • 消化和漂白纤维素材料减少排放的方法
    • US4329199A
    • 1982-05-11
    • US177764
    • 1979-12-07
    • Per-Erik AnderssonFall E. I. Eriksson
    • Per-Erik AnderssonFall E. I. Eriksson
    • B01D53/50B01D53/68D21C11/00D21C11/06D21C3/02D21C11/04D21C11/08D21C11/12
    • B01D53/68B01D53/501D21C11/0028D21C11/0035D21C11/06Y02P40/44Y10S162/08Y10S423/03
    • The digestion of the cellulose-containing material is performed with a digestion liquor containing sulphur and sodium followed by recovery and regeneration of said digestion liquor and bleaching of the cellulose-containing material with chlorine dioxide. The SO.sub.2 -containing and possibly chloride-containing gas from the recovery boiler (11) of the process and from combustion of evil-smelling gases (20) is absorbed in an absorption liquor containing and alkali metal salt solution free of sulphur or sulphur compounds such as sulphide or thiosulphate, in a scrubber (27). The resulting scrubber liquor is mixed with acid residual solution (26) from the manufacture of chlorine dioxide, whereby sulphur dioxide (32) in gaseous state is returned to the process, whereafter the residual solution (34) free from SO.sub.2 is led to an evaporation and crystallization plant (35) for precipitation of alkali salts except chloride, substantially sodium sulphate, for obtaining a residual acid (37) consisting of chloride-containing sulphuric acid. The chloride-containing sulphuric acid is returned to the manufacture (19) of chlorine dioxide for generation chlorine dioxide, whereby the chloride content of the residual acid can be utilized.
    • PCT No.PCT / SE79 / 00046 Sec。 371日期:1979年12月7日第 102e日期:1979年11月15日PCT提交日期:1979年3月2日 No. WO79 / 00899 Pub 日期:1979年11月15日。用含硫和钠的消化液进行含纤维素材料的消化,然后回收和再生所述消化液并用二氧化氯漂白含纤维素材料。 来自回收锅炉(11)的来自回收锅炉(11)和来自恶臭气体(20)的燃烧的含SO 2和可能含氯化物的气体被吸收在含有硫和硫化合物的吸收液和碱金属盐溶液中,例如 作为硫化物或硫代硫酸盐,在洗涤器(27)中。 将得到的洗涤液与来自二氧化氯的酸性残留溶液(26)混合,由此将气态二氧化硫(32)返回到该过程中,然后将不含SO 2的残留溶液(34)导入蒸发 和用于沉淀碱金属盐的结晶装置(35),除了氯化物(基本上是硫酸钠)之外,以获得由含氯化物的硫酸组成的残余酸(37)。 将含氯化物的硫酸返回到二氧化氯的制造商(19)中以产生二氧化氯,由此可以利用残留酸的氯化物含量。
    • 8. 发明授权
    • Packet data communications system having a malfunction list
    • 分组数据通信系统具有故障列表
    • US5805569A
    • 1998-09-08
    • US640445
    • 1996-04-30
    • Pontus LindqvistIngvar Gustaf AnderssonAnders HenrikssonPer Erik Andersson
    • Pontus LindqvistIngvar Gustaf AnderssonAnders HenrikssonPer Erik Andersson
    • H04L12/56H04J3/14
    • H04L47/10
    • A packet switching network having a malfunction list is provided to reduce network congestion. According to an exemplary embodiment, each node in the network includes a malfunction list which stores an unavailability value representing a state of unavailability of certain addressees in the network. Before sending a packet to an addressee, the node consults its own malfunction list to determine the unavailability value of the addressee. A packet addressed to an unavailable addressee is selectively returned to the sender by the node rather than travelling through the network to the addressee and back through the network to the sender. Packets can be returned to the sender with a probability proportional to the unavailability value of the addressee so that transmission is gradually resumed after a state of unavailability as the unavailability value decreases over time.
    • 提供具有故障列表的分组交换网络以减少网络拥塞。 根据示例性实施例,网络中的每个节点包括故障列表,其存储表示网络中某些收件人不可用状态的不可用值。 在向收件人发送数据包之前,节点会查询自己的故障列表,以确定收件人的不可用值。 寻址到不可用的收件人的分组被节点选择性地返回给发送者,而不是通过网络传送到收件人并通过网络返回给发送者。 数据包可以以与收件人的不可用值成比例的概率返回给发送方,以便随着不可用性值随时间的推移而在不可用状态之后逐渐恢复发送。