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    • 6. 发明申请
    • Filtration system for slurry hydrocarbon synthesis process using both small and large pore filter elements
    • 用于泥浆烃合成过程的过滤系统使用小孔和大孔过滤元件
    • US20070161715A1
    • 2007-07-12
    • US11641222
    • 2006-12-19
    • David LongThomas HoldenStephen HsiaCostas Coulaloglou
    • David LongThomas HoldenStephen HsiaCostas Coulaloglou
    • C07C27/06
    • B01J8/22B01J8/006B01J8/009C10G2/344
    • A method for separating and filtering solid particles from a hydrocarbon slurry liquid includes two or more filter sections in fluid communication with the hydrocarbon slurry. At least one filter section is comprised of one or more filter elements having a mean pore size of less than 10 microns, and at least one other section is comprised of one or more filter elements having a mean pore size of 10 microns or greater. The small pore filter (less than 10 microns) will exclude all or substantially all of the smaller catalyst fines produced by catalyst particle attrition. The liquid product removed from the small pore filters will be substantially free of particulates. The large pore filters (10 microns or greater) will exclude larger catalyst particles, but will allow the smaller fines to pass. The liquid product removed from the large pore filters will contain the fines generated from catalyst particle attrition.
    • 从烃浆液中分离和过滤固体颗粒的方法包括与烃浆料流体连通的两个或多个过滤器部分。 至少一个过滤器部分由平均孔径小于10微米的一个或多个过滤元件组成,并且至少一个其它部分由平均孔径为10微米或更大的一个或多个过滤元件组成。 小孔过滤器(小于10微米)将排除由催化剂颗粒磨耗产生的所有或基本上所有较小的催化剂细粉。 从小孔过滤器去除的液体产物将基本上不含微粒。 大孔过滤器(10微米或更大)将排除较大的催化剂颗粒,但将允许较小的细粉通过。 从大孔过滤器去除的液体产物将含有由催化剂颗粒磨耗产生的细粉。
    • 8. 发明授权
    • Digital spread spectrum GPS navigation receiver
    • 数字扩频GPS导航接收机
    • US5943363A
    • 1999-08-24
    • US682345
    • 1996-07-17
    • Peter HansonThomas Holden
    • Peter HansonThomas Holden
    • G01S1/00H04K1/00
    • G01S19/30G01S19/37
    • Disclosed are digital processing techniques for efficiently receiving, sampling and recovering multiple direct-sequence spread-spectrum signals by multiplexing key signal processing elements across many logical channels. Global Positioning System (GPS) receivers serve to illustrate the technique. They receive many signals, each with independent timing, phase, amplitude, and data modulation, which may arrive on multiple carrier frequencies and at multiple spreading rates. To employ digital processing techniques, the carrier or carriers are reduced to one or more digital sample streams. Digital processing (e.g., products, sums, decisions, etc.) is then used to estimate, or recover, the received signal and its characteristics. When these functions can be partitioned by processing rate, the usual case, the lower-rate functions can be efficiently shared with negligible efficiency loss.
    • 公开了用于通过在多个逻辑信道上复用密钥信号处理元件来有效地接收,采样和恢复多个直接序列扩频信号的数字处理技术。 全球定位系统(GPS)接收机用于说明该技术。 它们接收到许多信号,每个信号具有独立的定时,相位,幅度和数据调制,其可以以多个载波频率和多个传播速率到达。 为了采用数字处理技术,将载波或载波减少到一个或多个数字采样流。 然后使用数字处理(例如,产品,总和,决定等)来估计或恢复所接收的信号及其特性。 当这些功能可以通过处理速率进行分区时,通常情况下,可以以可忽略的效率损失有效地共享较低速率的功能。