Methods and systems for providing directory services for file systems
    2.
    发明申请
    Methods and systems for providing directory services for file systems 审中-公开
    为文件系统提供目录服务的方法和系统

    公开(公告)号:US20060004890A1

    公开(公告)日:2006-01-05

    申请号:US10865215

    申请日:2004-06-10

    IPC分类号: G06F17/30

    CPC分类号: G06F16/10 G06F16/38

    摘要: Methods and systems are disclosed for providing incremental backup and restore operations for a file system having a large number of files. A file system accessing a mass storage device is augmented by including an enhanced directory services component (EDSC) that has an associated EDSC database that contains file system information regarding contents of the file system including file attributes. Accordingly, high-performance backup and restore operations can be performed by directly or indirectly querying the EDSC database to obtain fill attributes rather than traversing the file system's native file attribute data structures. This enables the file system to provide more consistent response to applications requesting file status independent of the number of files stored in the file system.

    摘要翻译: 公开了用于为具有大量文件的文件系统提供增量备份和恢复操作的方法和系统。 通过包括具有相关联的EDSC数据库的增强目录服务组件(EDSC)来增加访问大容量存储设备的文件系统,所述EDSC数据库包含关于包括文件属性的文件系统的内容的文件系统信息。 因此,可以通过直接或间接查询EDSC数据库来获得填充属性而不是遍历文件系统的本机文件属性数据结构来执行高性能备份和恢复操作。 这使得文件系统能够对请求文件状态的应用提供更一致的响应,而与文件系统中存储的文件数量无关。

    Process for preparing polytetrahydrofuran
    6.
    发明授权
    Process for preparing polytetrahydrofuran 失效
    制备聚四氢呋喃的方法

    公开(公告)号:US06211401B1

    公开(公告)日:2001-04-03

    申请号:US09308320

    申请日:1999-05-19

    IPC分类号: C07C6724

    摘要: Polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer on a heterogeneous carrier catalyst which contains on an oxidic carrier material as active mass a catalytically active amount of at least one oxygenous molybdenum and/or tungsten compound and, when the precursor compounds of the active mass have been applied to the carrier material precursor, has been calcined at temperatures of between 500° C. and 1000° C. The catalyst used contains a promotor which comprises at least one element or a compound of an element of the 2nd, 3rd including the lanthanides, 5th, 6th, 7th, 8th or 14th group of the periodic system of elements.

    摘要翻译: 这些聚合物的四氢呋喃共聚物,二酯或单酯通过在至少一种前体和/或共聚单体存在下在非均相载体催化剂的存在下聚合四氢呋喃来制备,所述非均相载体催化剂在氧化载体材料上作为活性物质至少具有催化活性量 一种氧钼和/或钨化合物,并且当将活性物质的前体化合物已经施加到载体材料前体时,已经在500℃和1000℃之间的温度下煅烧。所使用的催化剂包含一种促进剂, 包括至少一种元素或元素的化合物,其包括元素周期性系统的镧系元素,第5,第6,第7,第8或第14组的第2,3族元素。

    Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone
    7.
    发明授权
    Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone 有权
    1,6-己二醇,1,5-戊二醇和己内酯的蒸馏加工方法和装置

    公开(公告)号:US07329330B2

    公开(公告)日:2008-02-12

    申请号:US10451738

    申请日:2002-01-08

    IPC分类号: B01D3/14 B01D3/42 C07C29/80

    摘要: A process for working up by distillation the crude products obtained in the process according to DE-A 196 07 954 and containing 1,6-hexanediol (HDO), 1,5-pentanediol (PDO) or caprolactone (CLO) in order to obtain the corresponding pure products, the working-up by distillation being carried out in each case in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper common column region (1), a lower common column region (6), a feed section (2, 4) having a rectification section (2) and stripping section (4), and a take-off section (3, 5) having a stripping section (3) and rectification section (5), with feeding of the respective crude product HDO, PLO or CLO in the middle region of the feed section (2, 4) and removal of the high boiler fraction (C) from the bottom of the column, of the low boiler fraction (A) via the top of the column and of the medium boiler fraction (B) from the middle region of the take-off section (3, 5), or in thermally coupled columns.

    摘要翻译: 通过蒸馏处理根据DE-A 196 07954的方法获得的含有1,6-己二醇(HDO),1,5-戊二醇(PDO)或己内酯(CLO)的粗产物的方法,以获得 相应的纯产品,在各种情况下在分隔壁塔(TK)中进行蒸馏处理,其中分隔壁(T)沿塔的纵向方向排列,形成上共同区域 (1),较低的公共列区域(6),具有整流部分(2)和汽提部分(4)的进料部分(2,4)和具有汽提部分的取出部分(3,5) (3)和整流部分(5),在进料部分(2,4)的中间区域供给相应的粗产物HDO,PLO或CLO,并将高沸点馏分(C)从底部 通过塔顶和中间锅炉馏分(B)从中间排出低沸点馏分(A) 起飞段(3,5)的区域,或热耦合柱。

    Application presentation synchronizer
    8.
    发明授权
    Application presentation synchronizer 失效
    应用演示同步器

    公开(公告)号:US06591293B1

    公开(公告)日:2003-07-08

    申请号:US09281877

    申请日:1999-03-31

    IPC分类号: G06F1516

    CPC分类号: G06F17/30873 G06F2216/15

    摘要: A system for making presentations to audience clients in a computer network. The presentation is made by a presenter client via a Web server connected to one or more audience client units. Each audience client unit has a browser for linking to the network. The system comprises a receiver for receiving and processing page requests from at least one presenter client; a transmitter for transmitting requested pages to the presenter client; and a server siphon for intercepting composed pages and sending copies of each composed page to at least one connected audience client.

    摘要翻译: 用于向计算机网络中的受众客户进行演示的系统。 演示文稿由演示客户端通过连接到一个或多个受众客户端单元的Web服务器进行。 每个观众客户端单元都有一个用于链接到网络的浏览器。 该系统包括用于接收和处理来自至少一个演示者客户端的寻呼请求的接收机; 用于将请求的页面发送到演示者客户端的发射机; 以及用于拦截组合页面并将每个组合页面的副本发送给至少一个连接的受众客户端的服务器虹吸管。

    Method for producing cyclopentanone
    9.
    发明授权
    Method for producing cyclopentanone 失效
    环戊酮生产方法

    公开(公告)号:US06429339B1

    公开(公告)日:2002-08-06

    申请号:US09700365

    申请日:2000-11-15

    IPC分类号: C07C4500

    摘要: A process for preparing cyclopentanone by reacting adipic esters of the formula R1OOC—(CH2)4—COOR2  I where R1 and R2 are each alkyl having from 1 to 12 carbon atoms, cycloalkyl having 5 or 6 carbon atoms, aralkyl or aryl and R2 may additionally be hydrogen, in the presence of oxidic catalysts comprises reacting adipic esters of the formula I having less than 5% by weight of by-products other than adipic esters in the gas phase in the presence of water, a carrier gas and a) from 0.01 to 10% by weight of at least one metal oxide selected from the first or second main group of the periodic table or from the group of the rare earth metals on titanium dioxide or zirconium dioxide as catalyst support, or b) from 0.01 to 50% by weight of at least one metal oxide selected from the second main group of the periodic table on zink oxide as catalyst support.

    摘要翻译: 通过使式R 1和R 2的己二酸酯反应制备环戊酮的方法各自是在氧化催化剂存在的情况下,可以另外为氢,其中R 1和R 2各自为具有1至12个碳原子的烷基,具有5或6个碳原子的环烷基或芳基, 包括使式I的己二酸酯在水,载气的存在下,在气相中具有小于5重量%的除己二酸酯之外的副产物,和(ii)0.01至10重量%的至少一种金属 氧化物,其选自周期表的第一或第二主族,或者来自稀土金属的二氧化钛或二氧化锆的组,作为催化剂载体,orb)为0.01至50重量%的至少一种选自 氧化锌作为催化剂载体的周期表第二主要组。

    Method for producing 1,6-hexanediol
    10.
    发明授权
    Method for producing 1,6-hexanediol 有权
    1,6-己二醇的制备方法

    公开(公告)号:US06407294B1

    公开(公告)日:2002-06-18

    申请号:US09529789

    申请日:2000-04-20

    IPC分类号: C07C2700

    摘要: A process for producing 1,6-hexanediol by hydrogenation of adipic esters and/or 6-hydroxycaproic esters in the gas phase at elevated temperature and elevated pressure in the presence of chromium-free catalysts comprises hydrogenating a) over a catalyst comprising copper, manganese and aluminum as essential constituents or over Raney copper, b) at a temperature of from 150 to 230° C. and a pressure of from 10 to 70 bar, c) at a molar ratio of hydrogen to ester to be hydrogenated within the range from 150:1 to 300:1, and d) at a catalyst space velocity of from 0.01 to 0.3 kg of C6 ester per liter of catalyst per hour.

    摘要翻译: 在无铬催化剂存在下,在升高的温度和升高的压力下,气相中己二酸酯和/或6-羟基己酸酯的氢化制备1,6-己二醇的方法包括在包含铜,锰和 铝作为必需组分或在阮内铜上,b)在150-230℃的温度和10至70巴的压力下,c)以氢化至酯的摩尔比在150℃的范围内 :1至300:1,和d),催化剂空速为每升催化剂每小时0.01至0.3kg的C6酯。