摘要:
A catalyst for the manufacture of alkylene oxide, for example ethylene oxide, by the vapor-phase epoxidation of alkene containing impregnated silver and at least one efficiency-enhancing promoter on an inert, refractory solid support, said support incorporating a sufficient amount of zirconium component (present and remaining substantially as zirconium silicate) as to enhance at least one of catalyst activity, efficiency and stability as compared to a similar catalyst which does not contain the zirconium component.
摘要:
An improved carrier useful for preparing a catalyst having excellent catalytic performance when used in the production of alkylene oxide, such as ethylene oxide. The carrier is obtained by a) impregnating a preformed alpha-alumina carrier with at least one modifier selected from among alkali metal silicates and alkaline earth metal silicates, b) drying said impregnated carrier; and c) calcining said dried carrier. The carrier may optionally be washed, prior to being impregnated by conventional catalytic material and/or promoter material.
摘要:
Combining network connection maintenance operations that use a resource to extend battery life. Each of the network connections has a timer and a defined tolerance for early connection maintenance. After receiving notification of an event, the network connections are accessed to identify the connections for which a maintenance operation may be performed early based on the timer and the tolerance. In an embodiment, the maintenance operation includes sending a transmission control protocol (TCP) keep-alive packet on the connection.
摘要:
A method and system for initiating an instant conversation by a web user at backend or at front-end. The instant conversation is presented in a web browser over internet. The system supports multiple concurrent instant conversations through wire or wireless devices. The conversation receiver doesn't need to login or install any third party software, and can be any random web user who is browsing the web site.
摘要:
The present application allows two-way communication between a remote client and a mobile device, such as a mobile phone. User's can be informed of phone events in real time, regardless of their proximity to the mobile device. A two-way communication link allows a remote client to communicate back to the mobile device to leverage the capabilities of the mobile device. For example, a mobile device can be controlled remotely to send a text message. In this way, third parties receive a text message from the mobile device itself, even though it is not in the user's possession.
摘要:
Managing recurrent schedules based on events and conditions. Schedules from a plurality of applications are identified based on an activation time for the schedules and a determination of whether or not conditions defined for the schedules are met. The identified schedules are activated by performing actions associated with each of the identified schedules. In an embodiment, the schedules are grouped based on functionality and prioritized to avoid conflicts within each group.
摘要:
Coordinating delivery of data to a first computing device from a plurality of second computing devices based on known power times for a resource associated with the first computing device. One of the second computing devices requests a time interval for data delivery. The first computing device compares the requested time interval to the known power times to determine a delivery time. For example, the requested time interval is compared against activation times for recurrent schedules that use the resource, and against previously determined delivery times. The second computing device delivers data at the determined delivery time to preserve the resource. In some embodiments, the delivery time is adjusted for processing delays and network latency.
摘要:
Mobile devices are provisioned automatically with VPN (Virtual Private Network) information so that users can automatically connect to their corporate networks using their devices. The OMA SyncML standard is extended to define VPN connections and provision them onto the devices automatically either over-the-air or by an IT application provided by the corporation.
摘要:
Managing recurrent schedules based on events and conditions. Schedules from a plurality of applications are identified based on an activation time for the schedules and a determination of whether or not conditions defined for the schedules are met. The identified schedules are activated by performing actions associated with each of the identified schedules. In an embodiment, the schedules are grouped based on functionality and prioritized to avoid conflicts within each group.